PH CALIBRATION FILE GENERATED ON: 04/11/2025 09:55 AE GDF 2021 MSC 1177 APEX ID NaN ** START CONFIG FILE COPY BLOCK ** Durafet SN = 2021, APEX# NaN 7, number of calibration coefficients -1.28803, =k0 Pon; -1.28746 =k0 Poff; -1.28006 =k0 HCl -1.49916e-14,4.42601e-11,-4.86711e-08,-8.52772e-04, =k2(fP)*T -5.01680e-06, =k3*P^1 3.42054e-09, =k4*P^2 -7.40708e-12, =k5*P^3 4.58508e-15, =k6*P^4 -8.43500e-19, =k7*P^5 ** END CONFIG FILE COPY BLOCK ** ** START pHlog.xlsx COPY BLOCK ** Ptchamber Ch PT runs VrsDrift k2 f(P) C6 k2 f(P) C5 k2 f(P) C4 k2 f(P) C3 k2 f(P) C2 k2 f(P) C1 k2 f(P) C0 k0(HCl) R^2 f(P) k8 f(P) k7 f(P) k6 f(P) k5 f(P) k4 f(P) k3 f(P) k2 f(P) k1 f(P) k0 R^2 pH Design Die DF# k0CalDates k0Soln k0_pOFF Stdk0_pOFF k0_pON Stdk0_pON 02/29-03/05/2024 -0.040 -1.49916e-14 4.42601e-11 -4.86711e-08 -8.52772e-04 -1.28006 0.9994 -8.43500e-19 4.58508e-15 -7.40708e-12 3.42054e-09 -5.01680e-06 -1.28004e+00 0.9974 AE GDF 2021 04/07-04/10/2025 -1.28746 1.68001e-04 -1.28803 2.52433e-04 ** END pHlog.xlsx COPY BLOCK ** ** SUMMARY K2 DATA: ** Durafet SN: 2021 pH stem mfg: MBARI AE GDF PT Source directory : /Volumes/Chem/DuraFET/CALIBRATION/K2_PTChamber_data/ PT Source file : GDF2021_022724_Ch E.csv PT test channel : HCl concentration: 0.01000 Molar k2 Calibration window: 02/29/2024 02:23 03/05/2024 05:06 Data subset: ASCENDING Vrs drift rate: -0.03965 mV/day Vk drift rate: -1.98212 mV/day Avg std Vk 48.18939 uVolts Average k2: -8.6709e-04 V/degC Std dev k2: 1.1560e-05 V/degC k2 f(P) c0 -8.5277e-04 k2 f(P) c1 -4.8671e-08 k2 f(P) c2 4.4260e-11 k2 f(P) c3 -1.4992e-14 k0 HCL: -1.2801 Volts Avg Ik: 6.45 nano amps Std dev Ik: 4.50 nano amps Avg Ib: 0.47 nano amps Std dev Ib: 7.35 nano amps ** PRESSURE BINNED K2 DATA: ** Avg Press k2 std k2 k0 std k0 R*R N Tmin Tmax 6.9 -8.5724e-04 7.3232e-06 -1.2801 1.0241e-04 0.9994 10 1.9 19.7 14.8 -8.5536e-04 2.0484e-06 -1.2801 2.8756e-05 0.9993 126 1.9 19.7 24.8 -8.5410e-04 2.6005e-06 -1.2801 3.6243e-05 0.9993 75 1.9 19.7 39.1 -8.5427e-04 2.1563e-06 -1.2802 2.9996e-05 0.9994 99 1.9 19.7 61.8 -8.5473e-04 2.4475e-06 -1.2803 3.4321e-05 0.9993 82 1.9 19.7 87.0 -8.5555e-04 2.7447e-06 -1.2804 3.8072e-05 0.9994 64 1.9 19.7 124.1 -8.5595e-04 2.3508e-06 -1.2806 3.2706e-05 0.9992 104 1.9 19.7 174.5 -8.5695e-04 2.6005e-06 -1.2808 3.5953e-05 0.9992 90 1.9 19.7 249.4 -8.5915e-04 2.4250e-06 -1.2812 3.3751e-05 0.9987 167 1.9 19.7 349.4 -8.6633e-04 2.3756e-06 -1.2816 3.3154e-05 0.9989 154 1.9 19.7 451.0 -8.6769e-04 2.3502e-06 -1.2821 3.3013e-05 0.9989 149 1.9 19.7 550.1 -8.7101e-04 2.5224e-06 -1.2825 3.5143e-05 0.9988 149 1.9 19.7 649.9 -8.7131e-04 2.5466e-06 -1.2831 3.5233e-05 0.9988 147 1.9 19.7 750.1 -8.7113e-04 2.7949e-06 -1.2837 3.8869e-05 0.9985 146 1.9 19.7 900.2 -8.7142e-04 3.4026e-06 -1.2847 4.7271e-05 0.9957 287 1.9 19.7 1099.1 -8.7195e-04 3.6275e-06 -1.2859 5.0158e-05 0.9952 278 1.9 19.7 1298.8 -8.7361e-04 3.1831e-06 -1.2870 4.4261e-05 0.9963 281 1.9 19.7 1500.5 -8.7700e-04 2.7966e-06 -1.2880 3.8883e-05 0.9972 277 2.0 19.7 1699.0 -8.8050e-04 2.2923e-06 -1.2887 3.1746e-05 0.9982 266 2.0 19.7 1899.0 -8.8854e-04 1.7695e-06 -1.2892 2.4583e-05 0.9989 275 2.0 19.7 2035.8 -8.9519e-04 2.3548e-06 -1.2893 3.2498e-05 0.9994 93 2.0 19.8 ** PH POLYNOMIAL PRESSURE COEFFICIENTS: ** f(P) NSSR: 2.7004e-08 f(P) R*R: 0.9974 f(P) c0 -1.2800e+00 f(P) c1 -5.0168e-06 f(P) c2 3.4205e-09 f(P) c3 -7.4071e-12 f(P) c4 4.5851e-15 f(P) c5 -8.4350e-19 ** KO CALIBRATION SUMMARY: ** MSC # : 1177 k0 calibration window 04/07/2025 21:07 04/10/2025 17:27 Color pH time offset 7 hours k0 poly fit 1 outlier_threshold 4 Ik outlier count 3 Ik outlier % 0.15 Ib outlier count 0 Ib outlier % 0.00 k0 Source directory : /Volumes/Chem/DuraFET/CALIBRATION/K0_seawater_data/ Parameter Pump ON Pump OFF Units k0 file MSC1177_DURA_2.dat MSC1177_DURA.dat median k0 -1.2881 -1.2875 Volts std k0 2.5243e-04 1.6800e-04 Volts Avg Vk -0.6408 -0.6408 Volts Avg std Vk 27.9 27.9 uVolts median Ik: -8.51 -8.33 nano amps std Ik: 3.97 4.06 nano amps median Ib: -0.14 -0.05 nano amps std Ib: 3.41 3.38 nano amps