Support Engineering Group : HRPH Sensors for May 2009 Deployment This page last changed on Sep 04, 2009 by tm. ##### Pressure Test Data 12 May 2009 180451 ISI: 1723 Weight before 763.9 gm Weight after 767.9 gm Failed power up test - current was 80mA at 12v (should be around 67 idle and 72mA when streaming pH) 180451 was opened and a "thimble full" of water was poured on the desk, compressed air was used to dry. software updated to v1.75.00, used as a test sensor 180358 ISI: 1724 794.6 gm 69mA, 69mA calibrated 14 May s=9.4903, o=2.7615 housing opened 28 May 2009, updated to v1.75.00 180511 ISI: 1734 Weight before 763.2 gm Weight after within 1gm 69 mA at 12.09v calibrated 14 May s= 9.5665, o=2.7104 housing opened 28 May 2009, updated to v1.75.00 180512 ISI: 1735 763.2 gm 71mA calibrated 14 May s=9.5294, o= 2.7188 housing opened 28 May 2009, updated to v1.75.00 180513 ISI: 1722 760.6 gm 69mA, 69mA (streaming) calibrated s=9.4928, o=2.7783 housing opened 28 May 2009, updated to v1.75.00 180514 ISI: 1725 Weight before 760.7 gm Weight after 763.5 gm 72mA calibrated s=9.4851, o=2.6949 housing opened 28 May 2009, updated to v1.75.00 180346 1736 Assembled new sensor on May 29 Calibration shows reduced gain (about 5/9ths) Verified pH meter board ##### Note: FOCE Housing had a small leak forcing early termination of the May deployment. ##### ##### Post-deployment (26 June 2009) 180451 Deployed ph #5 position on FOCE. Evidence that FOCE frame and pH #5 may have hit side of boat on recovery passes test and calibration 180358 Deployed pH #1 position on May FOCE passes test and calibration 180511 out of service due to noise susceptability problem found during test and calibration 180512 pH #1 position on May FOCE passes test and calibration 180513 pH #3 position on May FOCE foam blocks caused the connector pins to be bent at an angle passes test and calibration 180514 pH #4 position on May FOCE foam blocks caused the connector pins to be bent at an angle, though less than 513 passes test and calibration 180346 Not deployed ##### Pre-deployment prep (Pressure Test on Ventana to 1200m for ~4 hours 19 Aug 2009 ) 180451 firmware v1.75.00 ISI: 1723 Weight before 766.2 gm, after 767.3 gm calibrated 21 Aug 2009 s=?, o=? 180358 firmware v1.75.00 ISI: 1724 Weight before 764.0 gm, after 765.1 gm calibrated 21 Aug 2009 s=?, o=? 180511 ISI: 1734 Changed electrode then taken out of service due to noise sensitivity problem 180512 ISI: 1735 Weight before 766.2 gm, after 767.5 gm calibrated 21 Aug 2009 s=?, o= ? 180513 6 pin Connector replaced on Aug. 17 ISI: 1722 Weight before 764.8 gm, after 766.0 gm calibrated 21 Aug 2009 s=?, o= ? 180514 ISI: 1725 Weight before 766.4 gm, after 767.5 gm calibrated 21 Aug 2009 s=?, o= ? 180346 (full range pH meter) ISI: 1736 Not pressure tested (since it was not deployed) calibrated 21 Aug 2009 s=?, o= ? ~

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