Equipment and Calibration

Equipment history at East Pond

| ALL | | Anemometer || Barometer || Battery Bank || Camera || CO2 Probe || Conductivity Sensor || Data Logger || DO Sensor || Gas Analyzer || Heat Flux Plate || Interface || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || RH & Temp || Soil Moisture Probe || Solar Controller || Solar Panel || Water Level |

SELECT a.recno, a.eh_date, a.eh_loc1, a.eh_loc2, IF(a.eh_loc2=:loc, a.eh_locref2, a.eh_locref1) AS ref, a.eh_locref2, a.eh_title, a.eh_notes, a.eh_id, b.serialno, b.equip, b.modelno FROM equiphist a INNER JOIN equiplist b ON a.eh_id=b.recno WHERE (a.eh_loc1=:loc1 OR a.eh_loc2=:loc2) AND b.equip=:eq ORDER BY b.serialno, a.eh_date

Date Serial No. Model Action Ref Notes
Gas Analyzer
2018-10-04 0035 LI-7500A Installed Gas Analyzer CO2/H2O Installed on the East Pond tower to replace sn 0418 for calibration.
2019-01-28 0035 LI-7500A Calibration Lab Last calibration: 2018-10-02 AGC=99.2 SDM=0 DAC1=0 DAC2=0 Ambient P=100.7kPa, Tair=24.0C, Tdew=10.04C Zero Air at 1200psi, AMP Air 408.97 at 850 Tdewspan=16.00 CO2 zero 0.9375 -> .9375 Offset: .41ppm CO2 span 1.0142 -> 1.0193 Offset: 2.5ppm H2O zero 0.8981 -> .8969 Offset: -7.6ppm H2O span 1.0277 -> 1.0023 Offset: .54ppm Notes: Calibrated by Jiangong. Recorded on the from for sn 0035 but the correct config file (sn 0065) was loaded before the calibration, so the calibration is still good.
2019-01-18 0035 LI-7500A Removed Gas Analyzer CO2/H2O Removed from EP and brought back to the lab for calibration. it was replaced by sn 0073.
2019-01-28 0035 LI-7500A Calibration Lab Last calibration: 2018-10-02 AGC=99.2 SDM=0 DAC1=0 DAC2=0 Ambient P=100.7kPa, Tair=24.0C, Tdew=10.04C Zero Air at 1200psi, AMP Air 408.97 at 850 Tdewspan=16.00 CO2 zero 0.9375 -> .9375 Offset: .41ppm CO2 span 1.0142 -> 1.0193 Offset: 2.5ppm H2O zero 0.8981 -> .8969 Offset: -7.6ppm H2O span 1.0277 -> 1.0023 Offset: .54ppm Notes: Calibrated by Jiangong. Recorded on the from for sn 0035 but the correct config file (sn 0065) was loaded before the calibration, so the calibration is still good.
2019-08-07 0035 LI-7500A Installed Gas Analyzer CO2/H2O Installed at EP to replace sn 0065, which was brought back to the lab for calibration.
2019-11-18 0035 LI-7500A Calibration Lab Last calibration: 2019-08-01 AGC=100.1 SDM=0 DAC1=- DAC2=- Ambient P=100.4kPa, Tair=26.4C, Tdew=10.0C Zero Air at 950psi, AMP CA04396 408.97 at 600 Tdewspan=20.0 CO2 zero 0.9374 -> 0.9374 Offset: 0.0ppm CO2 span 1.0207 -> 1.0170 Offset: 1.93ppm H2O zero 0.8984 -> 0.8980 Offset: -2.6ppm H2O span 1.0323 -> 1.0314 Offset: 0.03ppm Notes: by Joe
2019-11-14 0035 LI-7500A Removed Gas Analyzer CO2/H2O Removed from East Pond and brought back to the lab for calibration. Replaced by sn 0041.
2019-11-18 0035 LI-7500A Calibration Lab Last calibration: 2019-08-01 AGC=100.1 SDM=0 DAC1=- DAC2=- Ambient P=100.4kPa, Tair=26.4C, Tdew=10.0C Zero Air at 950psi, AMP CA04396 408.97 at 600 Tdewspan=20.0 CO2 zero 0.9374 -> 0.9374 Offset: 0.0ppm CO2 span 1.0207 -> 1.0170 Offset: 1.93ppm H2O zero 0.8984 -> 0.8980 Offset: -2.6ppm H2O span 1.0323 -> 1.0314 Offset: 0.03ppm Notes: by Joe
2019-11-14 0041 LI-7500A Installed Gas Analyzer CO2/H2O Installed at East Pond to replace sn 0035 for calibration.
2020-05-13 0041 LI-7500A Calibration Lab Last calibration: 2019-11-12 AGC=100.9 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=21.6C, Tdew=9.7C Zero Air at 725psi, AMP CA4396 408.97 at 550 Tdewspan=16.00 CO2 zero 0.9968 -> .9966 Offset: -0.6ppm CO2 span 1.0146 -> 1.0180 Offset: -2.16ppm H2O zero 0.8218 -> .8210 Offset: -4.2ppm H2O span 1.0267 -> 1.0256 Offset: 0.02ppm Notes:
2020-01-30 0041 LI-7500A Moved Gas Analyzer CO2/H2O Removed with the decommissioning of the EP tower and installed at the new SW Temporary site 1250m upwind of the Permanent Tower.
2020-05-13 0041 LI-7500A Calibration Lab Last calibration: 2019-11-12 AGC=100.9 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=21.6C, Tdew=9.7C Zero Air at 725psi, AMP CA4396 408.97 at 550 Tdewspan=16.00 CO2 zero 0.9968 -> .9966 Offset: -0.6ppm CO2 span 1.0146 -> 1.0180 Offset: -2.16ppm H2O zero 0.8218 -> .8210 Offset: -4.2ppm H2O span 1.0267 -> 1.0256 Offset: 0.02ppm Notes:
2019-04-18 0065 LI-7500A Installed Gas Analyzer CO2/H2O Installed at EP to replace sn 0073, which was brought back to the lab for calibration.
2019-08-21 0065 LI-7500A Calibration Lab Last calibration: 2019-04-15 AGC=100 SDM=0 DAC1=- DAC2=- Ambient P=100.3kPa, Tair=27.6C, Tdew=15.0C Zero Air at 1000psi, AMP CO2 408.97 at 800 Tdewspan=20.0 CO2 zero 0.8911 -> 0.8916 Offset: 2.25ppm CO2 span 1.0171 -> 1.0191 Offset: -0.97ppm H2O zero 0.726 -> 0.7278 Offset: 14.2ppm H2O span 1.0118 -> 1.0165 Offset: -0.1ppm Notes: Water zero offset a little large - maybe still acclimating from factory service and new internal chemicals. Signal Strength reset from 101.1 to 100.0
2019-08-07 0065 LI-7500A Removed Gas Analyzer CO2/H2O Removed from EP and brought back to the lab for calibration. It was replaced by sn 0035.
2019-08-21 0065 LI-7500A Calibration Lab Last calibration: 2019-04-15 AGC=100 SDM=0 DAC1=- DAC2=- Ambient P=100.3kPa, Tair=27.6C, Tdew=15.0C Zero Air at 1000psi, AMP CO2 408.97 at 800 Tdewspan=20.0 CO2 zero 0.8911 -> 0.8916 Offset: 2.25ppm CO2 span 1.0171 -> 1.0191 Offset: -0.97ppm H2O zero 0.726 -> 0.7278 Offset: 14.2ppm H2O span 1.0118 -> 1.0165 Offset: -0.1ppm Notes: Water zero offset a little large - maybe still acclimating from factory service and new internal chemicals. Signal Strength reset from 101.1 to 100.0
2019-01-18 0073 LI-7500A Installed Gas Analyzer CO2/H2O Installed at EP to replace sn 0035, which was brought back to the lab for calibration.
2019-04-23 0073 LI-7500A Calibration Lab Last calibration: 2019-01-07 AGC=98.6 SDM= DAC1= DAC2= Ambient P=100.4kPa, Tair=26.0C, Tdew=11.8C Zero Air at 1100psi, AMP Air 408.97 at 700 Tdewspan=16.00 CO2 zero 0.956 -> .9563 Offset: .91ppm CO2 span 1.0081 -> 1.0094 Offset: -0.78ppm H2O zero 0.7316 -> .7336 Offset: 12.1ppm H2O span 1.0023 -> 1.0153 Offset: -.26ppm Notes:
2019-04-18 0073 LI-7500A Removed Gas Analyzer CO2/H2O Removed from EP and brought back to the lab for calibration. It was replaced by sn 0065.
2019-04-23 0073 LI-7500A Calibration Lab Last calibration: 2019-01-07 AGC=98.6 SDM= DAC1= DAC2= Ambient P=100.4kPa, Tair=26.0C, Tdew=11.8C Zero Air at 1100psi, AMP Air 408.97 at 700 Tdewspan=16.00 CO2 zero 0.956 -> .9563 Offset: .91ppm CO2 span 1.0081 -> 1.0094 Offset: -0.78ppm H2O zero 0.7316 -> .7336 Offset: 12.1ppm H2O span 1.0023 -> 1.0153 Offset: -.26ppm Notes:
2018-04-17 0418 LI-7500A Installed Gas Analyzer CO2/H2O Installed at EP tower as part of initial site set up.
2018-10-10 0418 LI-7500A Calibration Lab Last calibration: 2018-04-13 AGC=93.2 SDM=0 DAC1=0 DAC2=0 Ambient P=99.98kPa, Tair=29.11C, Tdew=15.00C Zero Air at 1500psi, AMP Air 408.97 at 1200 Tdewspan=16.00 CO2 zero 0.9001 -> .8982 Offset: -7.43ppm CO2 span 1.0057 -> .9965 Offset: 4.86ppm H2O zero 0.8426 -> .8454 Offset: 16.8ppm H2O span 0.9892 -> .9813 Offset: 0.16ppm Notes: calibrated by Katrina
2018-06-28 0418 LI-7500A Moved Gas Analyzer CO2/H2O Sensor moved up 26cm to try to address rotation angle issues. The water level was 68cm and the sensor was 540cm above water level.
2018-10-10 0418 LI-7500A Calibration Lab Last calibration: 2018-04-13 AGC=93.2 SDM=0 DAC1=0 DAC2=0 Ambient P=99.98kPa, Tair=29.11C, Tdew=15.00C Zero Air at 1500psi, AMP Air 408.97 at 1200 Tdewspan=16.00 CO2 zero 0.9001 -> .8982 Offset: -7.43ppm CO2 span 1.0057 -> .9965 Offset: 4.86ppm H2O zero 0.8426 -> .8454 Offset: 16.8ppm H2O span 0.9892 -> .9813 Offset: 0.16ppm Notes: calibrated by Katrina
2018-10-04 0418 LI-7500A Removed Gas Analyzer CO2/H2O Removed from the East Pond tower for calibration. Replaced by sn 0035.
2018-10-10 0418 LI-7500A Calibration Lab Last calibration: 2018-04-13 AGC=93.2 SDM=0 DAC1=0 DAC2=0 Ambient P=99.98kPa, Tair=29.11C, Tdew=15.00C Zero Air at 1500psi, AMP Air 408.97 at 1200 Tdewspan=16.00 CO2 zero 0.9001 -> .8982 Offset: -7.43ppm CO2 span 1.0057 -> .9965 Offset: 4.86ppm H2O zero 0.8426 -> .8454 Offset: 16.8ppm H2O span 0.9892 -> .9813 Offset: 0.16ppm Notes: calibrated by Katrina
2018-04-17 TG1-0211 LI-7700 Installed Gas Analyzer CH4 Installed at EP tower as part of initial site set up.
2018-06-28 TG1-0211 LI-7700 Moved Gas Analyzer CH4 Sensor moved up 26cm to try to address rotation angle issues. The water level was 68cm and the sensor was 534cm above water level.
2018-10-25 TG1-0211 LI-7700 Calibration Gas Analyzer CH4 Calibration Location: East Pond Last calibration: 2018-04-13 RSSI=74%, Optical RH=10% Ambient P=101.6kPa, Tair=26.4C Zero Air at 1950psi, AMP Air 3.121 at 2100 CH4 Zero Offset: .029ppm CH4 Span Offset: .006ppm Notes: Calm day
2019-04-11 TG1-0211 LI-7700 Calibration Gas Analyzer CH4 Calibration Location: East Pond Last calibration: 2018-10-26 RSSI=70%, Optical RH=14% Ambient P=101.9kPa, Tair=17.1C Zero Air M4002 at 1600psi, AMP CA03923 3.121 at 1800 CH4 Zero Offset: 0.014ppm CH4 Span Offset: 0.003ppm Notes: Windy day
2019-09-04 TG1-0211 LI-7700 Upgrade Gas Analyzer CH4 We updated the 7700 firmware from v1.0.23 to v1.0.27. First try failed part way through, second try was successful.
2019-10-22 TG1-0211 LI-7700 Calibration Gas Analyzer CH4 Calibration Location: East Pond Last calibration: 2019-04-11 RSSI=72%, Optical RH=19% Ambient P=101.9kPa, Tair=26.1C Zero Air at 1300psi, AMP CA03923 3.121 at 1200 CH4 Zero Offset: 0.003ppm CH4 Span Offset: -0.001ppm Notes:
2020-01-30 TG1-0211 LI-7700 Moved Gas Analyzer CH4 Removed with the decommissioning of the EP tower and installed at the new SW Temporary site 1250m upwind of the Permanent Tower.
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