Copyright: ©1997-2001 VERITEQ Instruments, Inc.
Citation: ©1997-2001 VERITEQ Instruments, Inc. All rights reserved.


Overview
Introduction to Veriteq Compact Precision Data Loggers!

Veriteq data loggers are compact and efficient alternatives to bulky data acquisition systems and chart recorders. More powerful than conventional battery-operated recorders, Veriteq Loggers help acquire the data you need, without compromising performance or dependability.

Ideal information-gathering tools, Veriteq Loggers combine small size, industry-leading accuracy and resolution, long battery life and convenient PC interface. Together with SPECTRUM Software, they allow you to verify the performance of your equipment and systems accurately, reliably, and persuasively.

Veriteq Loggers have been designed to record data reliably over long deployment periods and in widely varying environmental conditions. All Veriteq data loggers feature 12-bit resolution and are powered by long-life lithium batteries. Stable and reliable performance is ensured through the use of industrial-grade components and attention to detail through every step of the design and production process.

Veriteq data loggers are available in many different versions to precisely and efficiently measure important physical phenomena. Each model is optimized for individual configurations, thus making the most of the unit’s power and capabilities. There are temperature, relative humidity, thermocouple, voltage and current models available to cover a wide range of applications.


How the Spectrum Data Logging System Works

Veriteq Spectrum-series data loggers are always operating - there is no ON/OFF switch. This prevents tampering or accidental interruptions and ensures reliable long-term recording. Each logger has adjustable sample intervals from 10 seconds to just over one day - so you can monitor parameters that change frequently or cover extended periods without running out of memory.

To retrieve the information from the logger, the data must be transferred to a PC. This produces a special type of file – a LOGGER (or SPL) file . This file must then be inserted into a  GRAPH (or SPG) file , before it can be viewed.

Once the software has been loaded onto your PC, it allows you to:

Configure and setup Loggers.

Transfer historical Logger values to your PC and create Logger files.

View and print graph files.

Before being able to use the software, it must be installed onto the hard disk of your PC. Refer to the Quick-Start guide supplied with your Logger package for instructions on how to do this.


What's New in this Version of Software
What’s New in this Version of Software?

We are continually improving our data logger products and introducing new features. This new version of software has been updated and includes the following new features:

Support for different time zones

Now users can select the time zone that best applies to their application. This feature is useful whenever data loggers or files are deployed or analyzed across different time zones.

Daylight Saving Time Adjustments

The program automatically adjusts for daylight savings time changes and reflects these changes on all displays, graphs and printouts.

Regional date and time formats

The program automatically uses your computer’s Regional Settings to display user-preferred date and time formats on all displays, graphs and printouts.

Improved Time Trigger feature

The time trigger feature now features a convenient drop-down calendar for entering delayed start time and dates, eliminating the need to calculate start times using delta values.

New Zooming Features

Zooming can now be done with greater precision and flexibility. New features include an exact zooming mode (using the mouse or keyboard) that optionally drops the rounding of X-axis time scale values, manual zooming (users enter exact start and end time and dates), and graduated unzooming (users can undo previous zooming actions in steps).

The new exact zooming mode allows users to focus in on only the data of interest and to delete, with a high degree of precision, extraneous sections of data at the beginning and ends of the data logger files.

Smoothing and Deadband Control added

The program now allows user control over the smoothing of data files (using deadband settings) to adjust for noisy or stable input data.

New Data Logger Transfer Wizard

Several new features have been added to make the data transfer between a logger and PC easier and more effective. The program now automatically inserts descriptive data (user-selectable) into newly created default logger filenames making the files easier to identify and retrieve later. The descriptive filename data includes the unique logger serial number, the user-entered logger description, and the time and date of the data transfer.


Established Software Features

Detailed graphical and tabular analysis

•	Overlay Graph Files from other data loggers to check relationships between logger files

•	Zoom-in for closer, more detailed looks

•	Use the graph cursor to pinpoint exact values, times and dates

•	Set up multiple graph windows for comparative studies

•	Call up statistical summaries

•	List readings in tabular format with dates, times and logged values

Flexible graph scaling

•	Manual and automatically-scaled graphs save time

•	Set up multiple Y-axes scaling and ranges

•	Scale logged data into your own choice of engineering units

Transfer data easily to other programs

•	Export graph files as text files for use in your favorite databases, word processors or spreadsheets

•	Copy graph files to the Clipboard so they can be pasted into other Windows™ applications

Fast and Reliable Data Logger Communications

•	Quick and convenient downloading of logger data

Configure and Calibrate your Data Loggers

•	Set up a Time Trigger for remote (delayed start) field applications

•	Adjust sample rates to suit your application needs

•	Enable and disable input channels to optimize data logger memory

•	Wrap-around or fill-then-stop memory options


Printing

To print your currently-active graph:

1	Select File, Print, OR

2	Press CTRL+P, OR

3	Click on the Print Graph toolbar button.

The Print dialog box then appears so you can configure how the graph file is printed.

For users with non-color displays or printers, the software provides automatic graph line markers for better visual differentiation between lines.

See Also


Previewing your Graph Before Printing

To view how your on-screen graph file will look prior to printing:

1	Select File, Print Preview

The Print Preview screen then appears. To view in closer detail select Zoom. To send the file to the printer, select Print.

See Also


Presenting your Data: Copying and Pasting Graphs
Copying and Pasting Graphs

To copy your currently-displayed graph as a bitmap to the Clipboard:

1	Select Edit, Copy  OR

2	Press CTRL+C, OR

3	Click the Copy Graph toolbar button.

You can then paste the graph into other Windows™ applications.


Setting up your Logger

You can set up your data logger with several user-configurable features such as:

Setting the Logger Description

Enabling and Disabling Channels

Setting Sample Intervals

Clearing Logger Readings

Setting a Delayed Start

Choosing a Sampling Method

To set up a logger, first connect it to your PC, then select Logger, Setup. Refer to the Using your Loggers section in this HELP file for more information on the choices available for setting up your particular data logger model.


Setting the Logger Description

The Logger Description is a short message you can save to your data logger’s memory to help identify it every time you communicate with it. To enter or change the Logger Description on your currently-connected logger:

1	Select Logger, Description, or

2	Choose Logger, Setup (or press <F11>) then select the Setup button beside the Description item.

3	Enter a description of the data logger using up to sixteen alphanumeric characters, then click OK.

The text from the Logger Description field is displayed on all on-screen graphs, tabular displays and printouts. The text is also used in the creation of a default filename when transferring logger data to a PC. The Logger Description can be changed or deleted during the Logger Transfer process.


Enabling and Disabling Channels

To enable or disable the channels on your currently-connected data logger, select Logger, Channels.

The Channels dialog box appears which includes a listing of the channels available on your logger, allowing you to enable or disable as you desire. To do this, toggle the desired Channel Enabled checkbox.

You can also enable and disable logger channels using the Logger Setup screens. To do this:

1	Choose Logger, Setup or press <F11>.

2	The Logger Setup screen appears with channel information listed at the bottom. Press the Setup button beside the channel you would like to enable or disable then select or deselect the Channel Enabled checkbox.

Note the following:

1	A channel must be enabled before it can start collecting readings.

2	It is a good idea to disable unused channels to maximize logger memory.

3	When you enable or disable logger channels, you will clear all existing samples in the logger.

4	If you are using a temperature and humidity data logger, you cannot disable the temperature sensor channel if you are using the humidity channel. This is because the humidity sensor requires temperature values for compensation purposes.


Setting Sample Intervals

The software allows you to change the sample rates on your data logger to suit the requirements of your application. You can set up faster sampling rates to capture rapidly changing data or space out your readings to maximize memory and cover extended monitoring periods.

To change the Sample Interval on your currently-connected logger:

1	Select Logger, Sample Interval, or

2	Select Logger, Setup (or press <F11>) then press the Setup button beside the Sample Interval item.

The Sample Interval dialog box then appears so you can select the sample interval you want using the Hours, Minutes and Seconds drop-down boxes. Intervals ranging from a minimum of ten seconds to once every 24 hours can be chosen. Pressing the Default button will reset your logger with a sample interval of once per minute.

The total period covered by a logger before the memory is filled up varies and depends on how many channels are enabled, and the sample interval specified. This information is listed on the Sample Interval dialog box.

Note that running your logger with a sample interval faster than one minute for prolonged periods of time may cause the battery to last less than 10 years.

Note also that when you change the sample rate of your logger, all the stored readings in the connected logger will be cleared!

See Also


Clearing Logger Readings

You can clear the memory on your currently-connected logger by selecting Logger, Clear. In the Logger Clear dialog box select the Clear logger and start sampling after one sample interval radio button.

You can also clear the memory in your logger by changing various Logger Setup parameters such as enabling or disabling logger channels, changing sample intervals, or using the Time Trigger (Start Time) function.

Clearing the logger of readings before starting a new logging session is not normally required but may be helpful in some cases because it minimizes the storage of unneeded information.


Delayed Start
Time Trigger (Start Time)

The Time Trigger (Start Time) function is ideal for applications that require a data logger to be primed and ready to start at a pre-defined time and date in the future. This feature helps to save logger memory and also minimizes the collection of unwanted data. The Time Trigger function can also be used to ensure that multiple data loggers start logging at the same time. To delay the start time for your currently-connected logger:

1	Choose Logger, Setup, OR

2	Press <F11>

The Logger Setup Dialog Box appears.

3	Select the Setup button beside the Start Time item. The Logger Clear dialog box then appears.

4	In the Mode box, select the Clear logger and start sampling using time trigger radio button.

5	In the Time Trigger box, select the time you want your logger to start sampling by using the calendar and time drop-down boxes. Then press OK. (You may use the Clear Time button to reset the time values to 12:00 AM).

Setting the Time Trigger clears your data logger of readings and suspends the taking of readings until the Time Trigger date and time occurs. Note that for this function to work correctly it is essential that your computer's time and date are correct.


Stop or Wrap when Full

This function allows you to choose how each data logger stores readings in memory. There are two choices: Wrap when full and Stop when full .

To choose the method in which your currently-connected logger stores readings:

1	Choose Logger, Setup, OR

2	Press <F11>

The Logger Setup Dialog Box appears.

3	Select the Setup button beside the Stop or wrap when full item. If this item has been greyed-out (disabled) in the Wrap mode, it is because the data logger’s memory is already full. To proceed, first clear the logger’s readings.

4	Select the method you would like then press OK.


Transferring Logger Data to the PC

To transfer the information stored in your data logger to your PC:

1	Make sure your data logger is properly connected with your PC.

2	Select Logger, Transfer OR press <F12> to start the communications process between the logger and your PC. The Transfer Wizard dialog box then appears.

3	Confirm Time and Date then click Next. If the time and date are not correct, use the Windows Control panel to update your system.

4	Edit or confirm the description of the logger using a maximum of 40 characters. This description can be overridden later if necessary.

5	Edit or confirm the description of listed logger channels using a maximum of 12 characters.

6	Enter, confirm or edit the name of the Logger File to be created as well as an optional description of the application the logger was in.

7	Click on OK to continue. The computer screen will briefly display the "Attempting to establish communication" message while it starts the data transfer process. The logger will then transfer its data to the PC. After the transfer, the data also remains in the logger and additional data continues to be stored in its internal memory.

8	Click Yes if you would like the newly transferred file to be inserted into your current graph. If you click No you can always insert the file later into a different graph.

If an error message is encountered, check that the cable is properly installed and that the correct COM (SERIAL) port is selected. If problems persist refer to Serial Port Problems?

Note: Your PC's date and time must be correct when transferring logger data or the timestamp in the logger file will be incorrect.


Setting the Time and Date
Setting System Time and Date

To set your PC’s time and date using your Windows operating system, open the Date/Time Properties dialog box by clicking Start, pointing to Settings, clicking Control Panel, and then double-clicking Date/Time.


Sample Period Chart

Use the following chart as a quick guide to determine how long a period your data logger can collect data before the available memory is filled. The Channels column refers to the number of channels available and/or enabled on your logger.

Notes:

1	Note that you can set sample intervals at many different rates between 10 seconds and one day that are not shown on this chart. For exact information on how much data your logger will hold before overwriting at the sample interval you choose, refer to the Setting the Sample Interval section.


Hardware Model

This item identifies the base model number of the data logger currently connected to the PC.


Samples per channel

This item identifies how many readings have been stored for each enabled channel on the currently connected logger, the capacity available (in readings) for each channel, and the percentage of memory used. Click the Refresh button to update values.


Log TIme

This item, located on the Logger, Setup screen, identifies the length of time the data logger has been recording for. The value is based on the number of readings in memory multiplied by the sampling interval. Click the Refresh button to update values.


Warmup Time

This item, if supported on the currently-connected data logger, displays the length of time prior to each reading that the logger uses to excite an externally connected and powered transducer. This setting can be adjusted to match the transducer warmup time applicable. Refer to the information in this HELP guide on the particular data logger model you have connected to see whether, or how, this information applies to your unit.


Serial Number

This item lists the unique eight-character product serial number of the currently-connected data logger. This number should match the serial number label on the back of the data logger. (Note that extra characters may be included on the serial number label for model identification).


Hardware and Firmware Revision Numbers

These items identify the Hardware (circuit board) design number and the Firmware (microprocessor software) version numbers associated with the currently connected data logger.


Refresh

The Refresh button updates the displayed values (channel readings, log time, and samples per channel) in the Logger Setup screen.


Close

The Close button closes the active window.


OK

The OK button accepts the settings or changes made in the dialog box and closes the active window.


Cancel

The Cancel button discards the settings the or changes made in the dialog box and closes the active window.


SP-2000 Introduction

Spectrum 2000 precision humidity and temperature data loggers are compact, powerful and easy-to-use recorders for monitoring critical humidity-sensitive products and processes.

Palm-sized and easy-to-use alternatives for RH chart recorders and bulky data acquisition systems, Spectrum 2000 humidity data loggers are completely self-contained and battery-operated. Simply place them where needed to measure humidity and temperature and they will record accurate time-based readings up to six times per minute - covering periods of up to several years in duration. No charts, wires, connections or power cords are required.

Spectrum 2000 data loggers incorporate the latest advances in data logging and RH-sensing technologies. Each data logger features integral precision relative humidity and temperature sensors with long-term high-accuracy measurement performance, sensitivity, and responsiveness. Accurate to +/- 2% RH and 0.15° C., the data loggers can sense changes as minute as 0.05% RH and 0.05° C. with a time-base accuracy of better than five seconds per day. Plus, the rugged thermoset polymer-based capacitive relative humidity sensor offers outstanding resistance to air-borne contaminants and condensation, delivering exceptional in-calibration service and reliability.

Spectrum 2000 precision humidity and temperature data loggers are ideal for demanding industry applications from pharmaceutical validations to monitoring rough in-field product shipments. All-solid-state construction, non-volatile memory, and a tamper-proof design ensure reliable and secure information. Each unit has an embedded digital serial number to provide unique identification for traceability in quality and regulatory records.

Perfect for verifying environmental conditions in labs, clean rooms, stability chambers, computer and equipment rooms and storage facilities, the Spectrum 2000 humidity data logger is used worldwide by industry professionals for ensuring adherence to industry regulations and ISO 9000 quality standards.

Spectrum 2000 data loggers interface to any PC with Spectrum Software, a powerful windows-based package for configuring, downloading, displaying, analyzing and reporting collected humidity and temperature information. With Spectrum Software you can display humidity data in graphical or tabular form or export results for use in other programs.


Channel Information

Each temperature and humidity logger has two channels: channel #1 is for measuring ambient temperature using the internal thermistor temperature sensor. Channel #2 is for measuring ambient relative humidity using the internal relative humidity sensor.

The temperature channel cannot be disabled while the relative humidity channel is enabled, as the temperature readings are required for temperature-compensating the relative humidity sensor. However, the relative humidity channel can be disabled if relative humidity measurements are not required. Disabling the relative humidity channel allows more temperature samples to be stored.

In normal operation, both channels are enabled. This allows both temperature and humidity to be recorded.


Caring for the Relative Humidity Sensor

Each temperature and humidity logger contains a capacitive polymer relative humidity sensor. This sensor technology is performing reliably in thousands of commercial, industrial, military, and aerospace installations worldwide. Although the sensor has been designed to resist contamination and condensation, you should still try to avoid contaminants where possible.

Please consult the factory regarding specific environments.


Taking Dewpoint Measurements

This software provides support for Dewpoint measurements for use with relative humidity loggers and files. Dewpoint calculations have been programmed using ASHRAE Psychrometric equations and are applicable for dewpoints above and below the freezing point.

Dewpoint temperatures are indicated as TdC (dewpoint measured in Deg. C.) or TdF (dewpoint measured in Deg. F.). In the real-time screen, dewpoint temperatures are automatically displayed to the right of the RH reading. In the graph screen dewpoint values will be plotted using the same scale (Deg. C or F) as the temperature readings.

When inserting the humidity channel (Channel #2) of a Logger (.SPL) file into a graph, you will be prompted to choose the desired units of data (% RH or Dewpoint).


Calibration

The temperature and relative humidity logger should be calibrated on a regular basis determined by the accuracy requirements of your application. A 90-day interval is recommended for the most critical applications, while a one-year or two-year interval may be adequate for less demanding situations. It is not recommended that calibration intervals be extended beyond two years for any application.


Specifications


How to Set up your Humidity Data Logger

Before using your RH and temperature logger, you will need to set it up in software. To do this, first connect the logger to your PC then choose Logger, Setup. The Logger Setup dialog box will be displayed. Click on any area of the following graphic for more information on the options available:


Warmup Time

The Warmup time feature is not applicable to this data logger model.


Channel 1 - Internal Temperature Sensor

Channel 1 is for the logger’s internal temperature sensor. Click Refresh to update currently displayed values.


Channel 2 - Internal Relative Humidity Sensor

Channel 2 is for the logger’s internal relative humidity sensor. Click Refresh to update currently displayed values.


Temperature Channel Setup

Click on the following graphic to find out more about the choices available on the Setup Temperature Channel dialog box:


Channel Enabled

The Channel Enabled checkbox allows you to enable or disable the currently-selected channel on your humidity and temperature data logger.

Note the following:

1.	A channel must be enabled before it can start collecting readings.

2.	It is a good idea to disable unused channels to maximize logger memory.

3.	When you enable or disable logger channels, you will clear all existing samples in the logger.

4.	You cannot disable the temperature channel (Channel 1) if you have enabled the relative humidity channel (Channel 2). This is because the temperature channel values are needed to provide temperature compensation for the relative humidity readings.


Relative Humidity Channel Setup

Click on the following graphic to find out more about the choices available on the Setup Relative Humidity Channel dialog box:


Display Method

The software can display humidity readings in the Logger Setup screen in either %RH or in Dewpoint degrees. Toggle the settings here to suit your preference.


SP-1000 Introduction

The SP-1000 Temperature Logger is a powerful and accurate temperature recorder designed for reliability and ease-of-use. It features an on-board ambient thermistor temperature sensor and an external channel for a remote temperature probe.

The SP-1000 is perfect for verifying temperature conditions in offices, labs, computer and equipment rooms, museums, clean rooms, and storage facilities. It’s also ideal for ensuring adherence to industry regulations and quality standards and for troubleshooting comfort, indoor air quality, and energy management problems.

The SP-1000 is a two-channel temperature logger. Channel 1 is for measuring ambient temperature using the internal thermistor temperature sensor. Channel 2 is for an optional remote thermistor temperature probe. With no external probe connected, only channel 1 should be enabled. If just the external temperature probe is required, channel 2 should be enabled.


Using the Remote Temperature Probe

This temperature logger has an external temperature channel (Channel #2) for use with a remote temperature probe. The advantage of the remote temperature probe is that it allows the logger to be used for a wider range of temperatures. It is also more versatile due to its small size, allowing it to be inserted in hard-to-get-at locations such as in ductwork or under pipe insulation.

To use the temperature probe:

1	Make sure to enable Channel 2 on the logger (see How to Enable and Disable Channels ). If you do not need to monitor from the internal temperature sensor, make sure to disable it to conserve memory.

2	Attach the temperature probe to the connector on the logger.

3	Test logger operation using the Logger, Setup function in software (refresh readings as required).

4	Place the logger in your application and start recording.


Specifications


Setting up your Temperature Logger

Before using your temperature logger, you will need to set it up in software. To do this, first connect the logger to your PC then choose Logger, Setup. The Logger Setup dialog box will be displayed. Click on any area of the following graphic for more information on the options available:


Warmup Time

The Warmup time feature is not applicable to this data logger model.


Temperature Channel Setup

Click on the following graphic to find out more about the choices available on the Setup Temperature Channel dialog box:


Channel Enabled

The Channel Enabled checkbox allows you to enable or disable the currently-selected channel on your data logger.

Note the following:

1.	A channel must be enabled before it can start collecting readings.

2.	It is a good idea to disable unused channels to maximize logger memory.

3.	When you enable or disable logger channels, you will clear all existing samples in the logger.


Internal Temperature Sensor Channel

Channel 1 is for the logger’s internal temperature sensor.


External Temperature Sensor Channel

Channel 2 is for the logger’s external temperature probe.


Frequently Asked Questions

I have recently upgraded my Logger software to the latest version. Will this new software work with my existing Loggers and files?

Yes. Each version of your Logger software is designed with backward compatibility. This means that it will work with all previous versions of loggers or files created from those loggers.

I have recently purchased a new Logger. Will it work with my older version of Logger software?

Not always. In our pursuit of continual product improvement, we periodically upgrade logger hardware or release new logger models. Unfortunately, these changes may not be recognizable by an older version of Logger software and can result in difficulties. For that reason, each logger that you purchase includes a note indicating which software version it must be used with. The safest choice is to always upgrade to the latest version of Logger software. Contact your dealer if you require a software update.

Does the software account for daylight savings time changes?

Yes. Daylight savings time changes are automatically accounted for in all graph and tabular displays.

How many logger files can I overlay onto the same graph?

You can overlay up to sixteen channels of data onto the same graph.

Do all graphs have to be created from one data logger?

No. You can create graphs using files from different data loggers and different data logger models.


Serial Port Problems?

If you are experiencing difficulties communicating with your data loggers, here are some things to know and try to get everything working OK.

Software error messages you may encounter…

"Unable to allocate COM port (#)"

This message means that the Logger software is configured for use with a Serial Port (COM #) that does not exist or is allocated (locked out) by another program. The first thing to do if you receive this message is to try using another COM port setting (1 to 4). If that does not work, you will have to confirm that an available COM port does, in fact, exist on your PC.

 "Unable to communicate with Logger on COM port (#)"

This message means that the Logger software recognizes that serial port (COM #) is working and that there is an interface cable (or some other device) attached to that serial port - however - it does not detect a logger. This can happen if the connection from the interface cable to the logger is not solid or if the logger itself is damaged. This message can also occur if you select the serial port that your mouse is currently using.

Things you can try…

1	Does the logger and interface cable work on a different PC? If so, the problem likely resides in the serial port configurations on the PC.

2	Are there other devices (like a mouse) that use the serial port in question without problems? If so, that port is likely not the problem.

3	Can you download data using a different interface cable? If so, the cable may be damaged.

4	Can you download data using a different logger (with the same interface cable)? If so, the logger may be damaged.

See Also


Technical Support

If you have trouble setting up or using your data loggers, you can call for free technical support. Before phoning or faxing, however, you may be able to quickly solve the problem yourself by reviewing this HELP system first. If you still need help, you should be at your computer and be prepared to provide the following information:

•	The version number of your Logger software (to get this information, choose Help, About).

•	Logger model and serial number.

•	The type of PC you are using.

•	The exact wording of any messages (error or otherwise) that appear on your screen.

•	What happened and what you were doing when the problem occurred.

•	How you tried to solve the problem.

You can contact Veriteq at:

	VERITEQ Instruments, Inc. #110 – 13799 Commerce Parkway Richmond, BC  Canada  V6V 2N9 Toll-free (in USA and Canada): 1-800-683-8374 Phone: (604) 273-6850 Fax: (604) 273-2874 E-Mail: info@veriteq.com www.veriteq.com


Setting up your Computer's Serial Port

Before the data logger can be used with the software for the first time, the correct serial communication (COM) port on your computer must be selected. You can do this by selecting any of the Logger menu items or by choosing Tools, Options, General and then selecting the COM port (1 to 4) to which you will be connecting your logger. A dialog box will be displayed that lists available COM ports and their status.

Once selected, this setting need not be changed unless you reinstall the software or change the communication port you are using.

See Also


Plugging in the Logger Interface Cable

Your data logger communicates with your PC through the Logger Interface cable. Install this cable by plugging one end into your logger – the other end plugs into an available serial port on the back of your PC. If you are not sure what port this is, look for one with 9 male pins. The interface cable should fit easily onto it. Some computers have a 25-pin serial port. If you need to connect to one of these, you’ll have to use a 9 to 25 pin serial port adapter which are available at any local computer dealer.

If you are in doubt about the types of ports present at the back of your PC, please consult your computer’s user manual.

See Also


Using HELP

You can get help anytime you're working with the Software by pressing the F1 key on your keyboard, clicking on the HELP button, or by choosing an item from the Help menu. Use HELP to find information about specific commands, buttons, menu options, etc.

If you can't find the information you need in the Software HELP, check the Quick Start Guide or contact Customer Support (refer to HELP menu for contact information).


Introducing the Screen Layout
Introducing the Main Software Screen

This is a sample of the main software screen. Click on any area of this screen for an explanation of what function it serves.


Using the Tool Bar

The buttons on the Tool Bar allow quick access to some of the most common functions of the software. The Status Bar at the bottom of the graph screen describes the function of these buttons when it is selected using the left mouse button.

Please click on any area of the toolbar below for an explanation of what function it serves.


Tool Bar: Create a New Graph

Creates a new graph file for which Logger files can be inserted.

See Also:

Viewing your Data: Creating Graphs


Tool Bar: Open Graph File

Opens an existing graph file.

See Also:

Displaying Existing Graph Files


Tool Bar: Save a Graph

Saves the currently-active graph file using the same file name. The File Save As dialog box appears if the file has not been saved previously.


Tool Bar: Insert Logger File

Inserts a Logger file into the currently-active graph file .

See Also:

Viewing your Data: Creating Graphs


Tool Bar: Pin Pointer
Tool Bar: Pin Pointer ON

Turns the Pin-Pointer bar ON.

See Also:

Pinpointing Values and Times


Tool Bar: Pin-Pointer OFF

Turns the Pin-pointer bar OFF.

See Also:

Pinpointing Values and Times


Tool Bar: Print Graph

Prints the currently-active graph.

See Also:

Presenting your Data: Printing


Tool Bar: Copy Graph

Copies the currently-active graph to the Windows Clipboard.

See Also:

Presenting your Data: Copying and Pasting Graphs


Tool Bar: Zoom-in

Turn the Zoom function ON.

See Also:

Analyzing your Data: Zooming


Tool Bar: Zoom-out

Turns the Zoom function OFF.

See Also:

Analyzing your Data: Zooming


Tool Bar: Scroll Backwards

Scrolls the on-screen graph to the left. Time base is shifted backwards.


Tool Bar: Scroll Forwards

Scrolls the on-screen graph to the right. Time base is shifted forward.


Tool Bar: Logger Setup

Opens the Logger Setup dialog box.


Tool Bar: Logger Transfer

Transfers logger data to the computer.


Screen Layout: The Toolbar

The Toolbar allows quick access to the most commonly used features. You can alternatively hide or display the toolbar by selecting View, Toolbar.


Screen Layout: The Title Bar

The Title Bar indicates the name of the active graph file.


Screen Layout: Graph Title

This is where the graph title is displayed.

See also: Adding a Title to your Graph


Screen Layout: The Status Bar

The status bar displays helpful information about the menu items and the toolbar. If the software is idle, the message "Ready" will be displayed. You can alternatively display or hide the Status Bar by selecting View, Status Bar.


Screen Layout: The Menu Bar

The Menu Bar allows access to the various software functions.


Screen Layout: The Humidity Scale
Screen Layout: The Right-Side Y-axes Scale

The right-side Y-axes scale. This scale is used when two or more Y-axes are present on the graph. Double-clicking on this side of the graph will allow you to set the graph range and units.


Screen Layout: The Time Scale

X-Axes time scale. You can adjust the time scale by Zooming or Scrolling Forwards or Backwards.


Screen Layout: The Temperature Scale
Screen Layout: The Left-Side Y-axes Scale

The left-side Y-axes temperature scale. Double-clicking on this side of the graph will allow you to set the graph range and scaling.


Screen Layout: The Graph

This is the graphic representation of Logger file data.

See Also:

Creating Graphs


Screen Layout: Name of Logger File

Name of Logger file indicates the name(s) of the Logger files currently being displayed. The color shown for each file corresponds to the color of the graph lines.


Mounting your Data Logger in the Field
Mounting your Logger in the Field

Your data logger, by virtue of its small size and light weight, can be easily mounted in the field using a wide variety of techniques. These methods include using Velcro strips, double-sided tape and magnetic strips. If appearance of your installation is not important, simply mounting the logger with duct-tape or some other industrial-type tape can be an effective time-saving alternative. If the environment is harsher, your logger can also be placed within a standard industrially-rated enclosure. External sensors and probes could then be run externally from this enclosure using special fittings in the openings.

Recording data over a lengthy period of time occasionally presents a challenge regarding where to safely place your logger. First of all, you want to make sure you don’t forget where it is. You also want to make sure that it’s still there when you come back. You also want to make sure it hasn’t been damaged.

Some items to keep in mind:

Ventilation: Don’t obstruct the air passage holes in your logger. There should be clear path where the air can get to the internal sensors (if they are used or available).

Vibration: Excessive vibration can knock the unit off its mounting. If the location is subject to excessive jarring or vibration, mount the logger more securely.

Temperature: Excessive temperature can affect adhesives. This applies to tape mounting or when relying on the magnetic mounting.

Moisture: Moisture can also affect the adhesive durability.

Permanence: Make sure the mounting location is permanent for the duration of the recording period. A filing cabinet is usually a great location but not before an office reorganization.

Public access: If your logger location is too visible, curiosity seekers may interfere with the readings. Make sure it is not too accessible. Hiding it is a good idea, where possible.


Glossary of Terms

A

Analog Voltage

Analog-to-Digital Converter (ADC)

B

C

Calibrate

Channel

Cold-junction compensation

Common

Current Loop

D

Dew Point

E

Excitation

F

G

Graph File

Ground

Ground Loop

H

I

Input Noise

Isolation Voltage

J

K

L

Local Time

Logger File

M

N

O

P

Protocol

Q

R

Range

Relative Humidity

Resolution

S

Sample Interval

Serial Port

Signal Conditioning

Stability

T

Thermistor

Thermocouple

Transducer

Transducer Warm-Up Time

Transfer

U

UTC

V

W

X

XPS Excitation Power-Saver Switch

Y

Z

Zooming


Ambient Temperature

The average or mean temperature of the surrounding air which comes in contact with the equipment or instrument under test.


Analog Voltage

A smoothly changing voltage signal (usually between 0 and 10 volts DC) representative of a physical parameter such as temperature, pressure, flow, acceleration and position. Analog implies continuous operation in contrast with digital, which is broken up into numbers.


Analog-to-Digital Converter (ADC)

A device which converts a smoothly changing (analog) signal to a discrete digital value. Linearity, resolution, noise rejection and speed are important characteristics for ADCs. Once continually varying analog signals are measured and converted into digital form, they can be stored and transmitted without loss of integrity due to the accuracy of digital methods.


Calibrate

To compare and correlate readings against a standard measurement.


Calibration Certificate

Documented evidence that a product has been calibrated against a standard measurement reference and that it falls within the specified requirements.


Channel

The path through which an instrument receives the input signals it measures.


Cold-Junction Compensation

An artificial reference level that compensates for ambient temperature variations in thermocouple circuits.


Common

A common reference point for an electrical system.


Current Loop

An industry-standard means of communicating information via changes in electrical current. A transmitter typically controls a current in the range of 4-20mA as a function of a measurement parameter. Any data logger placed in series can read and record these current levels.

The transmission of current provides a degree of noise immunity since the received information is unaffected by voltage drops in the line, contact voltage or resistance, and induced voltage noise. The offset (of 4mA) provides a distinction between zero (represented by 4mA) and no information, due to an open circuit (zero current flow).

Current loop circuits are generally powered by 24 volts supply.


Dewpoint

Dewpoint Temperature is defined as the temperature at which the amount of moisture present in the air would be the MAXIMUM amount the air could hold (at a constant pressure and water vapor content). This means that when the temperature falls to the dew point, the relative humidity is 100% and the air is considered "saturated".

Dewpoint does not vary with temperature, as does RH. Rather, dewpoint is a DIRECT measure of the actual moisture content in the air and thus is preferred as the unit of measurement in many scientific and industrial applications - particularly in tightly controlled environments where precise indications of water content in the air are required.

Dewpoint temperature is never greater than the air temperature. Once the dewpoint is reached and the air temperature continues to drop, water vapor is forced to leave the air through condensation. This condensation may take the form of water droplets, dew, or may remain suspended in the air as clouds or fog.

To better understand how dewpoint and RH are related to each other, try inserting the same channel 2 Logger (.SPL) file into your graph twice. On the second insertion simply enter the other unit of measurement.


Excitation

Excitation refers to the electrical power that is often required in order to operate external sensors and transducers. Most sensors and transducers are passive and thus require input power in order to order to provide the required output signals. For example, a pressure transducer with a 1 volt d.c. output may require 9 Vdc input power in order to operate. This 9 Vdc power is referred to as excitation power.


Graph File

A file that is created to display the data from one or more Logger files. Graph files retain formatting information such as graph title, zoom levels, Y-axes scaling and Logger file data and are identified by their .SPG extension (i.e. LAB_1.SPG).


Ground

A common reference point for an electrical system. Also can refer to an electrically-neutral wire that has the same potential as the surrounding earth.


Ground Loop

A ground loop is an unwanted ground current flowing back and forth between two devices that are grounded at two or more points. Ground loops occur when there is more than one path to ground in a particular system.

A common occurrence is that grounds in a system will be at different electric potentials. Differences may range from microvolts to volts. If signal wires on a single data logger are connected to inputs that are grounded separately, ground currents will flow and unpredictable errors will occur.


Input Noise

Input noise is a condition of unwanted voltage or current (generally with an alternating current component) on the input signal.


Interchangeability error

A measurement error that can occur if two or more probes are used to make the same measurement. It is caused by a slight variation in the characteristics of different probes.


Isolation Voltage

The voltage that an isolated (electrically separate) circuit can normally withstand. Isolation voltage is usually specified from input to input.


Local Time

A value equal to the current time used at a particular location. A relative indicator of time meaningful only if Time Zone Information is also known, Local Time contrasts with UTC Time, an absolute time reference. The software records Local Time in each Logger File.


Logger File

A file that is created after transferring a logger’s data to the PC. The file contains the collected readings (from all active channels) for the downloaded logger including the logger’s description, model number, serial number, software version number, and file description. Logger files are identified by their .SPL extension (i.e. PRIMARY_GAS_FLOW.SPL). Logger files cannot be viewed directly – they must be inserted into a graph file before the data can be displayed.


NEMA 4

A standard from the National Electrical Manufacturers Association, which defines enclosures intended for indoor or outdoor use primarily to provide a degree of protection against windblown dust and rain, splashing water, and hose-directed water.


NIST

An acronym for the National Institute of Standards and Testing.


Protocol

Language used by computers to talk to each other or to its own hardware. There is a special protocol used between the Software and the data loggers that allows each product to understand each other. Details of this protocol are available by contacting the manufacturer.


Range

Normal operating limits, specified by the lowest calibration point to the highest calibration point.


Relative Humidity

Relative Humidity is the measure of the amount of water vapor in the air compared to how much it can possibly hold at that temperature. A relative humidity of 50 % means that the air contains only one-half as much water as it could possibly hold. The capacity of air to hold water is heavily dependent on the temperature of the air. The colder the air, the less water it can hold. Air at 50° F. can hold only one-quarter the amount of water as air at 95° F.


Resolution

Resolution is the smallest change that can be distinguished by a measurement instrument. Resolution is sometimes referred to as sensitivity and is limited by the number of bits that the ADC uses to quantize the analog input signal. The greater the resolution the smaller the changes in the input signal that can be resolved. As an example, an 8-bit instrument can resolve to one part in 256 (2 to the power of 8). A 12-bit logger can resolve to one part in 4,096 (2 to the power of 12) or sixteen times better than an 8-bit logger.

•	Click HERE to view a graph that shows how a difference in resolution from 8-bits to 12-bits affects the readings you measure, record and display.


Resolution Graph


Sample Interval

The sample interval is the rate at which your Logger takes and records readings to memory. The sample interval applies to all enabled channels on your Logger.

You may want to occasionally change the sample interval on your Logger because:

1.	Faster sample rates may be required by your application, OR

2.	You need to record readings over a longer duration, OR

3.	You want to minimize the collection of unnecessary data.


Serial Port

The communications port to which devices such as a modem, mouse or serial printer can be attached to your computer. The serial communication ports on your computer are commonly referred to as COM1, COM2, COM3 and COM4. Serial ports exchange data sequentially, one unit at time.


Signal Conditioning

Signal conditioning is defined as the interface between the sensor and the data logger. Signal conditioning generally involves the following functions:

•	Sensor excitation

•	Compensation for signal offsets

•	Sensor calibration

•	Amplification as necessary


Stability

The ability of a sensor or measurement instrument to maintain its performance characteristics over a specified period of time.


Thermistor

A temperature-sensing element (a thermally-sensitive resistor) composed of sintered semiconductor material that exhibits a large change in resistance in proportion to a small change in temperature. The relationship between temperature and resistance is approximated for most thermistors by the Steinhart-Hart equation that is used in this Logger software.


Thermocouple

A temperature-sensing device constructed from dissimilar materials.


Traceable

Capable of being traced back to a recognized measurement standard or reference.


Transducer

A device that converts energy from a physical parameter (temperature, flow, pressure, etc.) into an electrical voltage or current signal. A Transducer usually consists of a sensor with additional electronic circuitry for signal conditioning and scaling.


Transducer Warm-up Time

The amount of time required for the output of a transducer to stabilize at an accurate reading once input power has been supplied. Transducer warm-up time can vary from transducer to transducer - some transducers do not take very long to warm-up, maybe just a few milliseconds. Others require much longer, sometimes several minutes.


Transfer

The term used when the software makes a copy of the data contained in a connected data logger. The transfer process creates a file on the PC but does not affect or delete the data on the logger. Other terms commonly used to describe the transfer process are download, upload, backup or copy.


Sample Deadband

A setting in Software (Tools, Options, Sample deadband) that controls the sensitivity of how data is recorded in memory.  Deadband is the minimum change of input signal required to cause a change in the recorded or indicated reading.  The sample deadband setting is used to dampen the effects of input noise and is set in terms of raw counts.


Stop When Full

When you choose this method, the Logger will stop taking readings once the memory is full.

The purpose of the Stop when full setting is to prevent the overwriting of readings. It is particularly important in any application where there will be an excessive time delay between the gathering of the data and the transferring of that data to the PC.


UTC

UTC and Local Time information is contained within Logger Files and is used to form the time base on logger graphs and data. An acronym for Universal Time Coordinated, UTC is a standard time common to every place in the world. Also known as Greenwich Mean Time (GMT) and World Time, UTC is expressed using a 24-hour clock but can be converted into a 12-hour clock (AM and PM). An absolute time reference that does not rely on Time Zone information, UTC contrasts with Local Time .


Warmup Time

The length of time prior to each reading that a current loop logger equipped with the XPS switch uses to excite an externally connected and powered transducer. This setting can be adjusted to match the transducer warmup time applicable


Wrap When Full

This is the default method of collecting readings on your data logger. When you choose this setting, readings are recorded in a first in, first out fashion. When the memory is full, the logger continues to take readings by discarding the oldest readings, thus creating a "sliding window" of readings.

The Wrap when full setting ensures you will always have the latest readings when you download your logger. The frequency at which the memory fills and wraps around is a function of the Sample Interval you have set on your logger. If the memory wraps around too quickly simply choose a longer sample interval.


XPS Excitation Power-Saver Switch

This is an internal software-controlled switch in certain data logger models with current loop channels that controls loop power for circuits containing one or more 4-20mA transducers. The switch works by opening the measurement circuit between readings then closing just prior to each reading. By doing so, the switch conserves battery power for extended monitoring sessions.

The XPS was developed for remote two-wire 4-20mA transducer monitoring applications where no line power source is available. The switch allows users to connect one or more transducers to their data logger, power them with an external battery, and have the circuit last for an extended period of time without premature draining of the battery.


Zooming

Enlarging a portion of an on-screen graph.


Switching between Fahrenheit and Celsius

To select whether your temperature data is displayed using the Celsius scale or the Fahrenheit scale:

1	Choose Tools, Options, Temperature Scale.

2	Select Fahrenheit or Celsius.

This setting will affect the data presented in your graphs, displays and tabular listings.


Adding a Title to your Graph

To add a descriptive title to the top of your currently active graph:

1	Select Format, Title, OR

2	Right-click over the current title or at the top of a graph, then choose Format Title, OR

3	Double-click with your mouse above a graph.

The Title dialog box appears so you can type in the title you want (up to 50 characters long).


Changing Y-axes Scaling

To manually change the Y-axes range on your graph:

1	Choose Format, Units, OR

2	Right-click over the Y-axes labels on either side of a graph, then choose Format Units, OR

3	Double-click over the Y-axes labels on either side of a graph

The Format Units dialog box then appears. Click over any area of this box for an explanation:


Units

Choose this setting to select which graph or Y-axes measurement scale you would like to modify. The Scale and Decimal Places settings apply only to the units you select here.


Scale

To change the automatic range chosen by the Software, choose Manual, then enter the maximum and minimum values you want displayed on your graph’s Y-axes (for the measurement units currently displayed in the Units drop-down box).


Settings for

This function allows you to save the formatting changes made on this form to either the Current Graph or as a System Default. If you select System Default, the settings you enter will automatically apply to other graphs as well which use the same units.


Decimal Places

This function allows you to override the way the Software displays decimal places in your data. To do this, choose the Manual setting, then select the decimal place precision you want from the drop-down box. The changes apply only to the scale displayed in the Units section of this dialog box.


OK

Accepts the changes and closes the Format Units dialog box.


Cancel

Cancels the changes made, if any, and closes the Format Units dialog box.


Apply

Applies the formatting changes entered in this dialog box without closing the dialog box.


Setting Software Preferences

Choose Tools, Options to set various preferences for how the software communicates with data loggers and creates and displays data logger files. A dialog box is displayed listing three choices shown on different tabs: General, Transfer and Insert.


General Preferences

Click on any area of the graphic below to get an explanation of the options available on the General tab.


COM Port Settings

Choosing Tools, Options, COM Port will allow you to select the COM port you wish to use to communicate with your data logger. The software allows you to choose from any one of four COM ports and provides information on the status of each port (Available, Unavailable, or Busy). Choose an available COM Port.

See Also


Zooming Time Scale Rounding

This function, located on the Tools, Options, General tab, allows you to round the time scale after using the graph Zoom function. Leave this function unchecked if you prefer precise zooming and unrounded time axis scaling.


Line numbers on displayed graphs

This function, located on the Tools, Options, General tab, allows you to enable or disable the use of graph line numbers on displayed graphs. If the Auto setting is chosen, the software will automatically display line numbers if a monochrome display is used and there is more than one graph line displayed.


Line numbers on printed graphs

This function, located on the Tools, Options, General tab, allows you to enable or disable the use of graph line numbers on printed graphs. If the Auto setting is chosen, the software will automatically display line numbers if a monochrome printer is used and there is more than one graph line displayed.


Selecting a Graph Font

Choose Tools, Options, Graph Font (on the General tab) to change the font used on all displayed or printed graphs. You can choose different font types, font styles and sizes to suit the needs of your presentation.


Transfer Preferences

Choose Tools, Options, Transfer to set the naming format for default file names when transferring logger values to your computer. The more descriptive the file name, the easier the file will be able to be retrieved later.


Insert Preferences

Choose Tools, Options, Insert to set logger file insert and sample smoothing methods. Click on any area of the graphic below to get an explanation of the options available on this tab.


Display Method for RH Channels

This option, located on the Tools, Options, Insert tab, controls how the software displays humidity readings each time you insert a logger file into your graph. Tick the Confirm display method for relative humidity channels checkbox if you want the software to ask you each time what humidity measurement units you want (RH or Dewpoint). Remove the checkbox tick if you want to always insert graphs using the default RH units (% RH).


Time Zone Settings
Time Zone / Local Time Settings

This setting, located on the Tools, Options, Insert tab, allows a user to override time zone information when inserting a logger file into a graph file. The default setting for this function is "unchecked", a setting that bases logger readings on UTC time. The software records both UTC time and Local Time when it creates a Logger File and either of these can be used when creating graphs. (This function does not apply to logger files created with older versions of software that may not have Local Time information).

The primary purpose of this function is allow a user to override incorrectly set Time Zone information at the time when a Logger Transfer was performed.


Setting Sample Smoothing

Choose Tools, Options, Insert, Sample smoothing to set the sample deadband your data logger uses to record readings. A sample smoothing setting of two raw counts damps input noise and produces a very stable graph. A setting of zero produces the most responsive graph but makes the recorded readings susceptible to noise. The default deadband setting is one raw count.

The setting you make using this function applies to all data logger channels except thermocouple input channels, if available on your logger. To change the smoothing setting for these channels choose the Sample smoothing for thermocouple channels function.


Setting the Sample Smoothing for Thermocouples

Choose Tools, Options, Insert, Sample smoothing for thermocouple channels to set the sample deadband for thermocouple input channels, if available on your data logger. A sample smoothing setting of two raw counts damps input noise and produces a very stable graph. A setting of zero produces the most responsive graph but makes the recorded readings susceptible to noise. The default smoothing setting for thermocouple channels is zero counts.


Time Zone Preferences

Choose Format, Time Zone (or right-click over the date and time labels at the bottom of a graph and choose Format Time Zone) to select the time zone to use when viewing the active graph file. This function is only required if data loggers are being graphed or displayed in a different time zone from when the file was originally created.


Thermocouple Display Method

This function, located on the Tools, Options, Insert tab, allows you to confirm the way the software displays thermocouple channel data that is inserted into a graph. If unchecked, the software will display the data using the existing settings. If checked, the software allows you to select whether the data should be displayed in millivolts or in temperature degrees based on a particular thermocouple thermocouple type. The software also allows you to enter a temperature offset.


Zooming

Zooming allows you to look closer at a portion of your currently-displayed graph. There are two different ways you can zoom.

The quickest and easiest way is to stretch the Graph Zoom selection box over the portion of the graph you want to see in greater detail.

For precise control over the X-axes time scale of your zoom, you also zoom-in by entering exact start and end times and dates.

See Also


Zooming: Graph Selection Method

To zoom in on your graph using the graph zoom selection box:

1	Select Format, Zoom-In, OR

2	Right-click on a graph, then select Zoom-In, OR

3	Press <F9>, OR

4	Choose the Zoom-in toolbar button (magnifying glass with "+").

A vertical line will then appear on your graph. You can move this vertical line using your mouse or arrow keys to mark the beginning of the section you wish to zoom in on.

Using the mouse, press and hold the left mouse button and move the second cursor line to the end of the section you wish to zoom in on. The zoomed-in area will then be displayed.

To zoom with your keyboard, mark the beginning point of your zoom by pressing <ENTER>. Then stretch the zoom box using the arrow keys on your keyboard. Complete the zoom by pressing <ENTER>.

To undo the last zoom action:

1	Select Format, Zoom-Out, OR

2	Right-click on a graph, then select Zoom-Out, OR

3	Press <F10>, OR

4	Choose the Zoom-out toolbar button (magnifying glass "-"). You can keep un-zooming using this function until you have returned the graph to its original un-zoomed condition.

See Also


Zooming: Manual Time Scale Method

To zoom in on your graph by manually entering start and end time and dates:

1	Select Format, Time Scale, OR

2	Right-click with the cursor over the date and time labels at the bottom of a graph.

The Time Scale dialog box will appear.

3	Using the drop down selection boxes, enter the Start Time and Date and End Time and Date that correspond to the section of the graph you wish to view in greater detail.

4	Press OK. The graph will then be zoomed to reflect the information you entered.

See Also


Scrolling your Graphs

Scrolling allows you to shift your view of your on-screen graph data to the right or to the left.

To scroll your on-screen graph to the left:

1	Select Format, Scroll Backward OR press <ALT> <Left Arrow> on your keyboard, OR

2	Choose the Scroll Backward toolbar button, OR

3	With the cursor over top of the X-axis time scale, right-click and choose Scroll Backward

To scroll your graph to the right:

4	Select Format, Scroll Forward OR press <ALT> <Right Arrow> on your keyboard, OR

5	Choose the Scroll Forward toolbar button, OR

6	With the cursor over top of the X-axis time scale, right-click and choose Scroll Forward


Exporting data

To export the displayed portion of the Logger files in the currently-active graph file to a text file, select File, Export. The File Save As dialog box then appears so you can select the name for the export text (.TXT) file you will be creating.

The exported data is, by default, in the form of a tab-delimited ASCII file. You can change this to comma-delimited by selecting this format using the Save as type setting. Either formats for these files can readily be imported into most popular spreadsheet and database programs for further analysis and manipulation.


Viewing Statistics

You can view a statistical summary of the Maximum, Average and Minimum values of the data in your currently-active graph by calling up the Logger File Listing box. This box provides a complete summary of the graphing data, including the statistical values above. If you need to do more in-depth statistical analysis, use the Export feature then import the data into your preferred spreadsheet program.


Pinpointing Graph Values and Times

To pin-point exact values and times on your currently-active graph:

1	Select Format, Position Cursor, OR

2	Press <F7>, OR

3	Right click over a graph then select Position Cursor, OR

4	Click on the Pin-Pointer ON toolbar button.

A cursor line will appear which can be positioned using your mouse or your keyboard’s arrows. The values at the bottom of the screen will indicate the exact time where the cursor is positioned and the exact values of the graph at that time.

Clicking on the left button of the mouse (or pressing <Enter>) will lock the cursor into its current position.

To remove the Pin-Pointer bar:

1	Select Format, Remove Cursor, OR

2	Press <F8>, OR

3	Right-click over a graph then select Remove Cursor, OR

4	Click on the Pin-Pointer OFF toolbar button.


Overlaying Multiple Graphs

More than one Logger file can be inserted into a single graph to allow for easy comparison of data. This is especially useful for before-and-after studies or to check interactions of data collected from different loggers. For differentiation purposes, the software automatically selects different colors for each graph line. Also, if you have a monochrome printer, the software automatically differentiates the graph lines using line markers.

See Also


Creating Graphs

You can create a new graph by:

1	Selecting File, Create New Graph File, OR

2	Pressing CTRL+N, OR

3	Clicking on the New Graph toolbar button.

An empty graph then appears on the screen, ready for you to insert one or more Logger files into your graph. The new graph file is given a default name (i.e. Graph1) at first but after you insert one or more Logger files and close the file you will be prompted to save the graph with a new name.


Inserting Logger Files

To insert one or more Logger files into your new graph:

1	Select File, Insert Logger File, OR

2	Press CTRL+I, OR

3	Right-click on a graph then select Insert Logger Files, OR

4	Click on the Insert Logger File toolbar button.

You will then be prompted for the Logger file which you wish to insert.

5	Select the file you just transferred or any previous file you created before. Then click on OK.

The software then reads in all of the data from the Logger file then displays the Select Channels dialog box. Select the channels you want to display in your graph and then click OK. The software will then display the data in a graph form.

If you are inserting data from a temperature and Humidity Logger you may require one more step before your data is graphed (see Choosing Humidity Units ).

See Also


Viewing Tabular Data
Creating a Tabular Listing

To create a tabular listing of the data that makes up your currently-active graph:

1	Select View, Logger Files, OR

2	Press <F6>, OR

3	Right-click on the graph, then choose View Logger Files.

4	Double-click with your mouse in the center of your graph.

The Logger File Listings box summarizes the information contained in the graph file. This includes:

•	File Name

•	File Description

•	Logger Description

•	Hardware Model Number

•	Hardware Revision Number

•	Serial Number

•	Software Version Number

•	Start Time of Data

•	End Time of Data

•	Sample Interval

•	Number of Samples

•	Statistical Summary (Maximum, Average and Minimum values for each channel)

•	A listing of the recorded values in the file for each channel including the time and date each value was recorded.

Note that the Logger File Listings box displays the data one file at a time. If your graph file has more than one Logger file in it, the information for those additional Logger files will follow after the first listing.


Displaying Existing Graph Files

Existing or previously saved graph files may be opened by selecting File, Open Existing Graph File, pressing CTRL+O, or using the Open File toolbar button.


Choosing Humidity Units

After selecting Channel 2 of a relative humidity Logger file to insert in your graph, you may be presented with the Confirm Display Method dialog box. Confirm the method for displaying Channel 2 values by selecting either Relative Humidity or Dewpoint. Then click OK. If you would rather not see this dialog box every time you work with humidity logger files, you can change this by selecting Tools, Options, Insert and then deselecting the Confirm display method for relative humidity channels checkbox.


SP-4000 Introduction

Spectrum 4000 Current Loop and Voltage data loggers are convenient and versatile recorders for reliable logging of a wide range of measurement variables.

Palm-sized and self-powered, SP-4000 loggers record signals from industry-standard transducers, transmitters and sensors to quickly and flexibly acquire important information. Available in single and multi-channel versions for logging dc voltage or 4-20 mA current loop signals, each model is based on a proven 12-bit logger platform that provides superb resolution and accuracy over even the widest measurement ranges.

Spectrum 4000 data loggers are simple to configure and deploy. Just connect two wires from a transducer, transmitter or sensing device to the logger's input channel using the screw-type terminal block. Then fill out a simple form in software to describe the scaling and measurement units desired. Save the form and all setup and scaling information is stored securely in the logger. No programming or complex equations are required and, once set up, the loggers automatically convert recorded results into familiar engineering units for display, analysis and presentation.

Spectrum Software makes it easy to work with Spectrum 4000 data loggers. With just a few keystrokes, you can create outstanding graphic and tabular representations of collected data, overlay graphs from different loggers, display data in real-time and export files to your favorite programs. Spectrum 4000 recorders are ideal for interfacing to any equipment supplied with dc voltage or 4-20 mA current loop outputs. This includes a wide range of transducers, transmitters and sensors for monitoring pressure, flow, fluid level, PH, electrical properties, moisture, gas concentrations and more. It is perfect for researchers, plant operators, test & measurement engineers and quality control personnel.


How to Setup your 4000 Logger
Software Setup

Each 4000-series data logger can be configured in software by accessing the Logger-Setup function. Click anywhere on the following graphic to get more detailed information on the various functions available from this screen.

See Also


Configure DC Voltage Channel Dialog Box

Clicking the Setup button beside any voltage channel will display the Configure DC Voltage Channel dialog box. A special setup function unique to 4000-series loggers is the ability to scale the input signals into engineering units you desire. Click on any area of the screen shot below to get an explanation of the functions available from this screen:


Configure Current Channel Dialog Box

Clicking the Setup button beside any current channel will display the Configure DC Current Channel dialog box. A special setup function unique to 4000-series loggers is the ability to scale the input signals into engineering units you desire. Click on any area of the screen shot below to get an explanation of the functions available from this screen:


Overview of Wiring Connections

Series 4000 Data Loggers each have a six-terminal connector block with which to make external voltage and/or current loop connections.

Terminals 1 to 4 are input channel connections. The two terminals labeled "COM" are common connections. The input type and range associated with each input channel vary according to the model of Logger you have. With some models only one input channel connection can be used. Other models can monitor from all four input channels. Depending on the model, input channels can vary from 0 to 100mVdc to 10Vdc or from 1mA to 22 mA.

To find out which terminals are used with your Series 4000 model and their input range, choose Logger, Setup. This screen will display information on individual channels and their measurement input ranges.

Select the topic of interest below for information on how to make connections to your 4000 Logger:

See Also


Current Loop Channels
Connecting to Current Loop Channels

The following diagram shows an example of how to connect a two-wire current loop signal to your data logger. In this example, the logger is monitoring two 4-20mA current loop signals, one on channel 1 and one on channel 3. (This circuitry is used as an example and may not apply exactly with your series 4000 model. Always confirm the channels and ranges you have on your data logger model by using the Logger Setup function).

See Also


Analog Voltage Channels
Connecting to Analog Voltage Channels

The following diagram shows a typical way to wire an analog voltage transducer to your logger. In this example, the logger is monitoring a 10 Vdc signal on channel 2. (Before wiring to your logger channel, confirm available channels using the Logger Setup function).

See Also


Special Considerations

•	Always wire the positive (+) connection to the desired channel input (terminals #1 to #4) and the negative connection to any one of the COM (-) terminals. When using more than two channels, you must use the same COM terminal twice.

•	Input voltage to data logger should not exceed 30 volts.

•	While reverse-polarity will not damage the logger, it may cause other channels to read incorrectly. (This condition will be addressed on future versions of the logger).

•	Current inputs are protected from over current conditions. Note that some special versions of the 4000 logger do not have current protection.

See Also


Avoiding Ground Loops
Avoiding Ground Loops in your Circuits

Ground loops have the potential to cause many measurement problems such as input noise, offsets and erratic behavior. They also have the potential to damage not only your data logger but other components in your monitoring circuitry as well. As a result, special care needs to be taken to avoid them.

Ground loops can occur by referencing more than one transducer to separate grounds. It can also occur by using one ground reference in your circuitry and having another ground reference in a connected computer. In this case, the computer interface cable also can create a ground loop. If disconnecting this computer interface cable affects the readings displayed on your computer, a poor wiring arrangement is likely. An effective solution for this problem is to isolate the communication port.

To avoid ground loops, here are some simple rules to follow:

1.	Make sure there is only one ground reference in your system. You can do this by using only one grounded power supply to excite your external sensors and transducers.

2.	Do not connect your computer to your data logging circuitry (i.e. for real-time readings) unless your:

•	communication port is isolated, or

•	transducer power supply is not grounded (i.e. battery-operated), or

•	excitation power supply is not grounded (i.e. battery –operated)

If it is not practical to provide a common ground or to provide isolation for each transducer you have in a circuit, the use of separate data loggers is suggested.


Display Units

The display units are the final values (scaled into the desired engineering units) that will be displayed in your graphs, realtime and setup screens. This is normally the rated input range of your transducer. If the transducer you are logging measures carbon monoxide (CO) and has a measurement range of 50 to 500 ppm, you would enter 500 as the High value and 50 as the Low value. You would also enter "ppm" in the units box. For your own applications, enter the engineering units you want (i.e. PSIG, mV, kW, kVA, ppm, etc.) using up to four characters.


Setting the Input Range

This function is used to define the input range of your analog voltage or current loop input channel. Most 4000 series models have fixed input ranges and no changes can be made with this function. Some models, however, have DC voltage channels that are selectable between 0 to 1 and 0 to 10 Vdc. With these models, choose the range that is most suited for your application by selecting the appropriate radio button.


Defining the Input Signal

The input signal is the signal applied to the analog voltage or current loop input channel on your data logger. It can also be referred to as the output signal of the external transducer or transmitter you are using in your application. If your transducer has a 1 to 5 volt output that you will be inputting to your logger, enter 5 as the High value and 1 as the Low value. If your transducer has a 4-20mA output, enter 20 as the high value and 4 as the low value.


Description

A description of up to twelve characters can be saved to the logger’s memory by entering it in this text box.


Channel Enabled

The Channel Enabled checkbox allows you to enable or disable the currently-selected channel on your data logger.

Note the following:

1)	A channel must be enabled before it can start collecting readings.

2)	It is a good idea to disable unused channels to maximize logger memory.

3)	When you enable or disable logger channels, you will clear all existing samples in the logger.


Customizing Input Ranges

You can customize the input ranges on your Logger by using external resistors. For information on how to do this, click on the topic of interest:

Converting an Analog Voltage channel to a Current Loop channel

Increasing the range of the Analog Voltage channel


Converting an Analog Voltage channel to a Current Loop channel

You can easily convert an Analog Voltage channel to a Current Loop channel by putting a resistor across the two terminals. The resistor’s impedance should be sized according to the following equation:

R = V * 1000 / C

        Where:

V= Maximum voltage of Analog Voltage Input Channel (in Volts d.c.)

C= Full scale Current Loop signal (in milliamps)

R= Resistance (in ohms)

As an example, if you want to convert a 1 Vdc channel to 0-to-25mA you would put a 40 ohm resistor across the two terminals. If you want to convert a ten volt channel to 0 to 100mA you would use a 100 ohm resistor.

See Also


Increasing the Range of the Analog Voltage channel

Any Analog Voltage channel can be modified externally to span higher ranges by adding a resistor. If you wish to do this, please contact your supplier for more information.

See Also


Sensor or Transducer Excitation

Unless you are monitoring from an existing 4-20mA process loop, chances are you will need to have a source of power for your external measurement circuitry. If your application is in a remote area and no power source is available, you will likely need to use an external battery. The XPS Excitation Power-Saver Switch allows you to efficiently control battery power to external transducers in the field for extended periods of time. It is available on certain 4000-series logger models equipped with 4-20mA input channels. These include models that end with the designation 4000-1CW (channel 1), 4000-2CW (channels 1 and 3), and 4000-4CW (channels 1 and 3).

The XPS switch is useful for extending battery operation when used for sampling intervals 20 seconds or longer.

See Also


Using the XPS Excitation Switch

The XPS switch is normally set to operate in the "continuous" mode. To enable it to open and close your current loop circuitry, you must set it to the "Timer" setting using Logger-Setup-<Channel # Setup>-Warmup Time function. You can then set the transducer warm-up time using the drop-down minutes and seconds boxes. To do this, you must determine the transducer warm-up period required for your application. This information can usually be gleaned from the transducer specifications. The transducer warm-up time can be set in increments of ten seconds. You should set the warm-up time so that it exceeds the minimum required warm-up time for your transducer.

See Also


Using 4-20mA Input Channels for Remote Applications

One advantage of using 4-20mA transducers for battery-operated monitoring applications is the stability and accuracy of readings. Most current loop transducers can operate with widely varying voltage inputs. They do not require regulated voltage supplies. The advantages of using 4-20mA transducers for remote battery-powered applications. Battery voltages can gradually decrease over time. This can affect the accuracy of readings with voltage-output transducers.

See Also


Typical XPS Connections

A typical remote datalogging setup using the XPS switch consists of a 4000-series current loop data logger, a two-wire 4-20mA transducer (i.e. pressure, flow, PH, etc.) and an external battery pack to provide transducer excitation.

The following diagram shows a typical setup diagram for a two-wire 4-20mA current transducer:


How the XPS Switch Works

The XPS switch works by opening the transducer and external battery circuit between readings. The switch then closes the circuit a pre-set time prior to each reading to allow for transducer warm-up and stabilization.

By cycling the power in between readings, transducer battery energy is conserved for extended monitoring sessions.


XPS Specifications


Transducer Warmup Settings

If the XPS switch is available on your data logger, choosing Logger, Setup, Warmup Time, Setup will display the Warmup Time dialog box. This box can also be accessed by choosing Logger, Setup, clicking the Setup button beside a current channel, then choosing Warmup time. Click on any part of the graphic below for an explanation of the settings available:

See Also


Continuous

Choosing the Continuous setting will lock the XPS switch in the closed position to prevent any power interruption of the external transducer circuit. This is the default setting normally used when monitoring transducers without external battery power.


Timer

Choosing the Timer setting will enable you to set the warmup time for your logger’s current loop channel using the minutes and seconds drop-down boxes in the Time Value section.


Time Value

If the Timer setting is chosen, the minutes and seconds drop down boxes can be used to set the warmup time that matches the required transducer warm-up time for an externally connected and powered transducer.

Clicking the Clear button sets the minutes and seconds values to 0. Clicking the Default button sets the warmup time to 10 seconds.


Warmup Time Channels

This section identifies the channel number(s) for which the warmup time feature applies.


Channel 5 Temperature and Status

Channel 5 is reserved for an internal temperature sensor on the 4000-series data loggers and may or may not be available on your particular model. This line lists the enabled or disabled status of this channel and the last detected reading, if applicable. Clicking Refresh will update these values.


Channel 5 Temperature Setup

Channel 5 is reserved for an internal temperature sensor on the 4000-series data loggers and may or may not be available on your particular model. If it is, clicking Setup will display the Setup Temperature Channel dialog box. Click anywhere on this graphic to get an explanation of the functions available from this box:


Current and Voltage Input Channels

Depending on the model, channels 1 to 4 are reserved for current and/or voltage inputs. Your logger may use one or more of these inputs. These lines list the enabled or disabled status of each channel and the last detected readings, if applicable. Clicking Refresh will update these values.


End-User License Agreement

This is a legal agreement between you and VERITEQ Instruments, Inc. ("The "DEVELOPER"). By using this software, you are consenting to be bound by and are becoming a party to this agreement. If you do not agree to all of the terms of this agreement, do not use this software.

Grant of License

The DEVELOPER grants to you a non-exclusive license to use SPECTRUM Software (the "Software") solely for the purpose of using it with SPECTRUM (or compatible) data loggers, or for evaluation.

Title

All title and copyrights in and to the Software, the accompanying printed materials, and any copies of the Software are owned by the DEVELOPER. The Software is protected by copyright laws and international treaty provisions.

Restricted Use

You may download or make additional copies of the Software for your personal use for each computer where the Software is to be used or evaluated. You may make copies for archival reasons only for each computer where the Software is installed.

You may not:

1.	Modify, translate, reverse engineer, decompile, disassemble, or create derivative works based on the Software and/or printed material.

2.	Copy the Software or Documentation (except for back-up purposes).

Limited Warranty

The DEVELOPER warrants that (a) the Software will perform substantially in accordance with the accompanying written materials for a period of ninety (90) days from the date of receipt, and (b) any Support Services provided by the DEVELOPER shall be substantially as described in applicable written materials provided to you by the DEVELOPER. The Software is not warranted to be error-free and the DEVELOPER makes no warranty or representation that the functions contained in the Software will meet your requirements or that program defects will be correctable. Some states and jurisdictions do not allow limitations on duration of an implied warranty, so the above limitation may not apply to you. To the extent allowed by applicable law, implied warranties on the Software, if any, are limited to ninety (90) days.

Customer Remedies

The DEVELOPER and its suppliers' entire liability and your exclusive remedy shall be, at the DEVELOPER’s option, either (a) return of the price paid, if any, or (b) repair or replacement of the Software that does not meet the DEVELOPER’s Limited Warranty and which is returned to the DEVELOPER with a copy of your receipt. This Limited Warranty is void if failure of the Software has resulted from accident, abuse, or misapplication. Any replacement Software will be warranted for the remainder of the original warranty period or thirty (30) days, whichever is longer. Outside the United States, neither these remedies nor any product support services offered by the DEVELOPER are available without proof of purchase from an authorized international source.

EXCEPT FOR THE WARRANTIES SET FORTH HEREIN, THE DEVELOPER DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED OR STATUATORY, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY FOR A PARTICULAR PURPOSE. ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY APPLICABLE LAW ARE LIMITED TO THE TERMS OF THIS LIMITED WARRANTY.

Limitations of Liability

IN NO EVENT SHALL THE DEVELOPER BE LIABLE FOR ANY INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF BUSINESS, PROFITS, DATA OR USE, WHETHER IN AN ACTION IN CONTRACT OR TORT OR BASED ON A WARRANTY, ARISING OUT OF, OR IN CONNECTION WITH, THE USE OR PERFORMANCE OF THE PRODUCT OR ANY DEVELOPER-SUPPLIED SOFTWARE THAT ACCOMPANIES THE PRODUCT, EVEN IF THE DEVELOPER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Termination

This license will terminate automatically if you fail to comply with the terms and conditions described above. On termination, you must destroy all copies of the Software.

This agreement represents the complete agreement concerning this License between the parties and supersedes all prior agreements and representations between them.

This license and Limited Warranty are governed by the Laws of British Columbia, Canada.


Specifications


SP-1700 Introduction

The SP-1700 Series Thermocouple Loggers are accurate and easy to use recorders designed for a broad range of industrial temperature measurement applications.

Compact and efficient alternatives to chart recorders and bulky data acquisition systems, the loggers are fully compatible with readily available thermocouple probes in J, K, T, E, R and S configurations. Capable of monitoring temperatures up to 3,200° F. (1,760° C.), the loggers automatically scale the collected thermocouple data directly into your choice of degrees Fahrenheit or Celsius, eliminating the need for complex calculations or reference tables. The loggers feature an on-board precision-calibrated thermistor sensor that provides cold-junction temperature compensation over the entire operating range, allowing you to use them accurately in harsh and demanding environments. Plus, each SP-1700 Logger input channel is precision-calibrated during manufacture, eliminating any need for adjustment in the field.

Simple to set up and use, the data loggers require no programming or complicated equations. To operate, simply select the type of thermocouple probe you are using, make your connections to the terminal block, and begin logging. The units are completely self-contained and self-powered, so you don’t need bulky transmitters, signal conditioners or external power sources, making them a convenient choice for remote in-field applications.

Available in single, dual and four-channel versions, SP-1700 Loggers are ideal for high temperature process monitoring. They are also well-suited for remote monitoring applications where reliable long-life battery operation is essential.


How to Setup your 1700 Thermocouple Logger
How to Setup your Thermocouple Logger

Series 1700 thermocouple loggers work directly with thermocouple probes in type J, K, T, E, R and S configurations. To use the logger, you must first set it up in software , then connect one or more probes as appropriate to the logger’s terminal block.

The three most important points in setting up your model 1700 data logger in software are:

1.	Make sure the input channel you are going to use is enabled.

2.	Make sure the channel is set up to use the correct thermocouple probe type.

3.	Make sure the readings you get from your connected probe are correct and that the temperature probe responds in the right direction to changes in temperature (for example, warm the probe with your hand or breath and make sure the probe responds accordingly).


Temperature Offset

The Temperature Offset feature allows you to adjust the thermocouple temperature values (for the selected channel) recorded and displayed by the logger. Use the temperature offset value for minor probe calibration adjustments.

A temperature offset of –1.5, for example, will cause the logger to measure 1.5 degrees lower. A temperature offset of 3.5 will cause the logger to measure 3.5 degrees higher.

The temperature offset value is based on the Temperature units (Fahrenheit or Celsius) currently selected by the program.


Thermocouple Logger Channel Description

Add, edit or confirm the description of the currently-selected logger channel using a maximum of 12 characters.


Thermocouple Channel Display Method

This function allows you to select the type of thermocouple probe you are associating with the currently-selected thermocouple channel. It also allows you to use raw millivolt values.

The settings you make here affect the readings displayed on the Logger, Setup screen as well as on graphs and tabular listings.

Note:

The thermocouple type setting for the logger channel you are using MUST match the type of thermocouple probe connected or else you will collect erroneous readings!


Channel Enabled

The Channel Enabled checkbox allows you to enable or disable the currently-selected channel on your data logger.

Note the following:

1.	A channel must be enabled before it can start collecting readings.

2.	It is a good idea to disable unused channels to maximize logger memory.

3.	When you enable or disable logger channels, you will clear all existing samples in the logger.

4.	You cannot disable the internal temperature channel (Channel 5) if you have enabled any thermocouple input channel. This is because the internal temperature channel values are needed to provide cold junction temperature compensation.


Channel Information

Each thermocouple data logger has a minimum of two channels with at least one channel (Channel 5) being an internal temperature channel.

Depending on the model, channels 1 to 4 are reserved for thermocouple inputs. Your logger may use one or more of these inputs.

Channel 5 is used for cold junction temperature compensation


Setup Thermocouple Channels

This function, available when you choose Logger, Setup then click the Setup button beside any thermocouple channel, allows you to setup the currently-selected thermocouple channel. Click anywhere on the graphic below to get an explanation of the different functions available from the Setup Thermocouple Channel dialog box:


Connecting Thermocouple Probes

To connect one or more thermocouples to your model 1700 data logger, you will need each probe end to have bare leads. In some cases you may have to remove a standard connector to do this.

To connect the thermocouple probe, one lead should be attached to the input channel terminal you have already set up in software. The other lead (normally the red lead) should be attached to one of the two common terminals (marked "COM"). If you are using more than one probe you can connect more than one wire to a single common terminal as long as the thermocouple types are the same.


Software Setup

Each model 1700 data logger can be configured in software by accessing the Logger, Setup function. Click anywhere on the graphic below to get an explanation of the different functions available from this screen:

See Also


Warmup Time

The Warmup time feature is not applicable to this data logger model.


Channel 5 Temperature Channel
Channel 5 Temperature and Status

Channel 5 on the thermocouple logger is for the internal temperature sensor that is used for cold junction temperature compensation. This line lists the enabled or disabled status of this channel and the last detected reading. Clicking Refresh will update these values.


Channels 1 to 4 Status

Depending on the model, channels 1 to 4 are reserved for thermocouple inputs. Your logger may use one or more of these inputs. These lines list the enabled or disabled status of these channels and the last detected readings in either temperature or millivolt units. Clicking Refresh will update these values.


Setup Cold Junction Temperature Channel

This function allows you to setup the internal Cold Junction Temperature Channel. Click anywhere on the following graphic to get an explanation of the functions available from the Setup Temperature Channel dialog box: