Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
LI-7700 TG1-0211 2024-01-11 Mayberry Calibration Mayberry Calibration Location: Mayberry
Last calibration: 2023-07-20
RSSI=71%, Optical RH=3%
Ambient P=102.1kPa, Tair=11.5C
Zero Air at 1850psi, AMP CA03923 3.3865 at 1700
CH4 Zero Offset: .032ppm
CH4 Span Offset: .0095ppm
Notes: Breezy day
LI-7500A 75H-2182 2024-01-10 Lab Calibration Lab Last calibration: 2023-10-23
AGC=103 SDM= DAC1= DAC2=
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=100.21kPa, Tair=21.2C, Tdew=9.47C
Zero Air at 450psi, AMP CA04119 524.77 at 650 Tdewspan=18.00
CO2 zero 0.8848 -> .885 Offset: .94ppm
CO2 span 1.0124 -> 1.0163 Offset: -2.06ppm
H2O zero 0.8311 -> .8326 Offset: 9.9ppm
H2O span 1.0325 -> 1.0352 Offset: -.05ppm
Notes: Vertical orientation. Reset SS from 103 to 100 after cal. Used nail polish to cover up some small patches of paint missing from the spars.
LI-7500A 1594 2024-01-10 Lab Calibration Lab Last calibration: 2023-10-03
AGC=103 SDM= DAC1= DAC2=
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=100.22kPa, Tair=21.03C, Tdew=9.42C
Zero Air at 450psi, AMP CA04119 524.77 at 675 Tdewspan=18.00
CO2 zero 0.8777 -> .8774 Offset: -1.37ppm
CO2 span 1.0092 -> 1.0093 Offset: -.7ppm
H2O zero 0.8117 -> .8142 Offset: 14.7ppm
H2O span 1.0074 -> 1.0062 Offset: .03ppm
Notes: Vertical orientation. Reset SS from 103 to 100 after cal.
LI-7700 TG1-0155 2024-01-10 Lab Calibration Lab Calibration Location: Lab
Last calibration: 2023-06-15
RSSI=91%, Optical RH=21%
Ambient P=100.46kPa, Tair=21.3C
Zero Air at 500psi, AMP CA04119 4.2238 at 750
CH4 Zero Offset: -.03ppm
CH4 Span Offset: -.0188ppm
Notes: This sensor was removed from WP with its decommissioning. Back in the lab, it had revert to default heater settings and its clock was off (laptop=11:46, 7700=18:51, "Etc/GMT+8" on slave). I changed the clock setting to automatic, set the clock to match the laptop time, changed the clock setting back to slave, and then rebooted. The time was correct after reboot but we should double-check it after conencting to the 7550 in the field. I changed the heater settings back to our usual. Before calibration, I flushed the optics headspace down to 10% and swapped in a bottle of fresh drierite.
LI-7500A 0041 2024-01-04 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed at Mayberry to replace sn 0073 for calibration.
LI-7500A 0073 2024-01-04 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from Mayberry for calibration. Replaced by sn 0041.
LI-7500A 1594 2024-01-04 West Pond Gas Analyzer CO2/H2O Removed Lab none Removed from WP tower with initial decommissioning of the site
LI-7700 TG1-0155 2024-01-04 West Pond Gas Analyzer CH4 Removed Lab none Removed from WP tower with initial decommissioning of the site
LI-7500A 75H-2180 2024-01-04 Lab none Installed East End Gas Analyzer CO2/H2O Installed at East End to replace sn 75H-2182 for calibration.
LI-7500A 75H-2182 2024-01-04 East End Gas Analyzer CO2/H2O Removed Lab none Removed from East End for calibration. Replaced by sn 75H-2180.
SI-131 1076 2024-01-04 Bouldin Corn Infrared Temperature South Removed Lab none Removed from BC at the conclusion of Corteva's IRT experiment.
SI-131 1073 2024-01-04 Bouldin Corn Infrared Temperature North Removed Lab none Removed from BC at the conclusion of Corteva's IRT experiment.
CH150 2963 2024-01-04 Bouldin Corn Solar Controller Surface Renewal Removed Lab none Removed from BC at the conclusion of Corteva's IRT experiment.
CR1000X 1132 2024-01-04 Bouldin Corn Data Logger Surface Renewal Removed Lab none Removed from BC at the conclusion of Corteva's IRT experiment.
LI-7500A 0065 2024-01-04 Lab none Installed Bouldin Corn Gas Analyzer CO2/H2O Installed at Bouldin Corn to replace sn 0042 for calibration.
LI-7500A 0042 2024-01-04 Bouldin Corn Gas Analyzer CO2/H2O Removed Lab none Removed from Bouldin Corn for calibration. Replaced by sn 0065.
SI-121 1635 2024-01-04 Bouldin Alfalfa Infrared Temperature South Removed Lab none Removed from BA tower at the conclusion of Corteva's IRT experiment.
SI-131 1071 2024-01-04 Bouldin Alfalfa Infrared Temperature North Removed Lab none Removed from BA tower at the conclusion of Corteva's IRT experiment.
CH150 1688 2024-01-04 Bouldin Alfalfa Solar Controller Surface Renewal Removed Lab none Removed from BA tower at the conclusion of Corteva's IRT experiment.
CR1000X 1130 2024-01-04 Bouldin Alfalfa Data Logger Surface Renewal Removed Lab none Removed from BA tower at the conclusion of Corteva's IRT experiment.
LI-7500A 0035 2024-01-02 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed at Vaira to replace sn 0065 for calibration
LI-7500A 0065 2024-01-02 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from Vaira for calibration. Replaced by sn 0035.
PRB-K Type #8 00000A3D04E8 2024-01-02 Tonzi none Removed Lab none This probes has been broken for a long time - more than a year. Removed. It has a broken pin and the shaft is cracked.
LI-7500A 75H-2669 2024-01-02 Lab none Installed Tonzi-Tower Gas Analyzer CO2/H2O Installed at Tonzi Tower to replace sn 75H-2180 for calibration.
LI-7500A 75H-2180 2024-01-02 Tonzi-Tower Gas Analyzer CO2/H2O Removed Lab none Removed from Tonzi-Tower for calibration. Replaced by sn 75H-2669.
LI-7500A 75H-2667 2024-01-02 Lab none Installed Tonzi Gas Analyzer CO2/H2O Floor Installed at Tonzi Floor to replace sn 0041 for calibration.
LI-7500A 0041 2024-01-02 Tonzi Gas Analyzer CO2/H2O Floor Removed Lab none Removed from Tonzi Floor for calibration. Replaced by sn 75H-2667.
LI-7500A 0065 2024-01-03 Lab Calibration Lab Last calibration: 2023-09-18
AGC=100 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=100.8kPa, Tair=22.7C, Tdew=7.3C
Zero Air at 550psi, AMP CA04119 524.77 at 700 Tdewspan=20.0
CO2 zero 0.8919 -> 0.8918 Offset: -0.27ppm
CO2 span 1.024 -> 1.0255 Offset: -1.3ppm
H2O zero 0.7322 -> 0.7329 Offset: 4.9ppm
H2O span 1.0226 -> 1.0238 Offset: -0.02ppm
Notes: Signal strength rest from 107 to 100 before calibration. Used CO2 span pt of 524.67
LI-7500A 0041 2024-01-03 Lab Calibration Lab Last calibration: 2023-09-18
AGC=100 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=100.8kPa, Tair=22.7C, Tdew=7.3C
Zero Air at 550psi, AMP CA04119 524.77 at 750 Tdewspan=20.0
CO2 zero 0.9965 -> 0.9963 Offset: -0.79ppm
CO2 span 1.0192 -> 1.0217 Offset: -1.67ppm
H2O zero 0.8236 -> 0.8245 Offset: 5.0ppm
H2O span 1.0292 -> 1.0365 Offset: -0.16ppm
Notes: H20 took a long time (40min) to stabilize - kept creeping up
LI-7500A 75H-2180 2024-01-03 Lab Calibration Lab Last calibration: 2023-09-18
AGC=101.1 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=100.8kPa, Tair=23.1C, Tdew=7.9C
Zero Air at 500psi, AMP CA04119 524.77 at 700 Tdewspan=20.0
CO2 zero 0.9143 -> 0.9141 Offset: -0.8ppm
CO2 span 1.0384 -> 1.0406 Offset: -1.17ppm
H2O zero 0.8944 -> 0.8965 Offset: 12.9ppm
H2O span 1.0344 -> 1.0383 Offset: -0.08ppm
Notes:
LI-7500A 0035 2024-01-02 Lab Calibration Lab Last calibration: 2023-08-04
AGC=100.5 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=101.0kPa, Tair=19.96C, Tdew=8.97C
Zero Air at 550psi, AMP CA04119 524.77 at 750 Tdewspan=18.0
CO2 zero 0.9377 -> 0.9372 Offset: -2.0ppm
CO2 span 1.024 -> 1.0267 Offset: -1.77ppm
H2O zero 0.8984 -> 0.9006 Offset: 13.4ppm
H2O span 1.0205 -> 1.0400 Offset: -0.4ppm
Notes: I painted some scratches on the body with nail polish
HYDROS21 H21G200002433 2023-12-22 Lab none Installed Hill Slough Water Level Installed at the channel to replace the one that failed and was removed a while ago.
LI-7500A 75H-2514 2023-12-22 Lab none Installed Bouldin Alfalfa Gas Analyzer CO2/H2O Installed at Bouldin Alfalfa to replace sn 0035 for calibration.
LI-7500A 0035 2023-12-22 Bouldin Alfalfa Gas Analyzer CO2/H2O Removed Lab none Removed from Bouldin Alfalfa for calibration. Replaced by sn 75H-2514.
HMP45AC D4420028 2023-12-22 Lab none Installed Mayberry RH & Temp Installed at MB to replace HMP155 that died and was removed last visit. HMP155 cable removed this time. Met program updated for different AirT offset.
LI-7500A 75H-2669 2023-12-20 Lab Calibration Lab Last calibration: 2023-08-04
AGC=100.0 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=99.6kPa, Tair=22.4C, Tdew=15.48C
Zero Air at 550psi, AMP CA04119 524.77 at 750 Tdewspan=18.0
CO2 zero 0.9195 -> 0.9187 Offset: -3.0ppm
CO2 span 1.0167 -> 1.0167 Offset: -0.02ppm
H2O zero 0.9009 -> 0.9027 Offset: 10.9ppm
H2O span 1.0163 -> 1.0206 Offset: -0.09ppm
Notes: Reset SS from 102.6
LI-7500A 75H-2667 2023-12-20 Lab Calibration Lab Last calibration: 2023-07-10
AGC=100.0 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=99.6kPa, Tair=21.7C, Tdew=10.4C
Zero Air at 500psi, AMP CA04119 524.77 at 750 Tdewspan=18.0
CO2 zero 0.9411 -> 0.9413 Offset: 0.7ppm
CO2 span 1.0232 -> 1.0207 Offset: 1.83ppm
H2O zero 0.8427 -> 0.8427 Offset: 0.2ppm
H2O span 1.0367 -> 1.0363 Offset: 0.01ppm
Notes: Reset SS from 103.0, Database says last cal was 07-14, instrument says 07-10.
LI-7500A 75H-2514 2023-12-20 Lab Calibration Lab Last calibration: 2023-07-10
AGC=100.0 SDM=0 DAC1=- DAC2=-
AIU sn AIU-1866, Presure A0=58.31, A1=15.48
Ambient P=99.6kPa, Tair=20.4C, Tdew=11.0C
Zero Air at 600psi, AMP CA04119 524.77 at 750 Tdewspan=18.0
CO2 zero 0.9049 -> 0.9095 Offset: -3.4ppm
CO2 span 1.0199 -> 1.0207 Offset: -0.37ppm
H2O zero 0.8426 -> 0.8461 Offset: 3.5ppm
H2O span 1.0244 -> 0.9962 Offset: -0.03ppm
Notes: Calibration after factory repair and calibration. Reset SS from 103.4. Added SD coefficients to configuration.
eosFD FD20200001 2023-12-13 Vaira Forced Diffusion North Moved Tonzi-SoilCO2 Forced Diffusion Tree 1 Moved from Vaira North location to the Tonzi Tree 1 location. waiting for one FD to be repaired by Eosense.
PA-II-SD 68c63acc07a9 2023-12-07 Lab none Installed Bouldin Corn Air Quality Sensor Installed on the BC tower in its usual spot on the southwest corner. This PA has a new card slot that Joe put in. I had brought the sensor home last week so that it could reset its clock on my wifi. However, now campus has an IOT wifi network, so maybe I can try connecting the PA to it next time.
HYDROS21 H21G200002263 2023-12-08 Lab none Installed Mayberry Water Level Installed on the northeastern corner of the Mayberry scaffolding. There's not much water right now, but I tried to install it right above the muck.
HMP155 T2820180 2023-12-08 Mayberry RH & Temp Removed Lab none Removed from the Mayberry tower and brought back to the lab for testing. It was reading -79 deg C and 0% RH.
HMP45AC D4420028 2023-12-13 Lab none Tested Lab none Plugged in for a few minutes in a lab and still compares fine with the cal kit HMP155. We will use this sensor Mayberry to replace the dead HMP155 sn T2820180.
LI-7500A 75H-2514 2023-11-13 Factory none Calibration Factory none Calibrated at Licor after chopper motor replacement - see RMA doc: rma_Licor_00248550_sn75H-2514_20231201.pdf. The new calibration numbers (see cal doc: cal_Licor_LI-7500A_sn75H-2514_20231113.pdf) will need to be manually entered in 7550 configuration file.
LI-7500A 75H-2514 2023-12-05 Factory none Received Lab none Received back from Licor after chopper motor replacement and recalibration
LI-7810 TG10-01751 2023-12-01 Lab none Calibration Lab none Last calibration: 2023-08-22
Zero Air at ???psi, AMP CA04119 4223.8 ppb CH4 at ???psi
CO2 zero Offset: -0.024ppm
H2O zero Offset: -10.52ppm
CH4 zero Offset: 0.129ppb
CH4 span Offset: -1ppb
Notes: Calibration in the lab before Kuno's field campaign next week. Ran zero and span gases at our usual flow rate of 2 SCFH and plumbed the system with the recommended 30cm vent before the air inlet to vent excess air pressure and to prevent diffusion of ambient air into the gas stream. I waited until the slope of H2O was <0.002ppm to set the zero. I waited until the slope of CH4 was <0.002ppb to set the span. Plan 45min+ for H2O zero to stabilize. I forgot to write down the exact CH4 span offset, but I saved a screenshot and estimated the offset based on the graph.
LI-7550 AIU-1866 2023-12-01 Factory none Received Lab none Received back from Licor. This 7550 sn AIU-1866 went back to Licor for a power problem. Licor replaced the 7550 main power supply under warranty, subjected the units to environmental tests and verified the operation of the units. It was shipped with 7500A sn 75H-2669 (nothing wrong with the 7500A, it was just the sensor attached when the box died)
LI-7500A 75H-2669 2023-12-01 Factory none Received Lab none Received back from Licor. It was shipped with LI-7550 sn AIU-1866 which went back to Licor for (another) power board repair. There was nothing wrong with this 7500A sn 75H-2669, but Israel requested we send it back as well b/c it was connected when the LI-7550 broke. Licor replaced the 7550 power supply, subjected the units to environmental tests and verified the operation of the units.
eosFD FD20180048 2023-11-13 Tonzi-SoilCO2 Forced Diffusion Open Removed Lab none Removed because CO2 readings seem to be too low. We tried a performance check but missed being able to reset the offset. Brought to the lab for testing.
BB-Fab BB-TF 2023-11-13 Tonzi Battery Bank Floor Upgrade Tonzi Battery Bank Floor We removed four flooded batteries that came from the Tower. Two are probably still good. The other two seemed to be internally shorted. Four new group 27 AGM batteries were installed.
GP-001 GP20160117 2023-11-28 Lab none Installed Gilbert Tract CO2 Probe Installed at GT to replace GP20210002, which was removed b/c of noisy data.
GP-001 GP20210002 2023-11-28 Gilbert Tract CO2 Probe Removed Lab none Removed from GT because of noisy data. Replaced by GP20160117.
PA-II-SD 84f3ebd5ffb1 2023-11-20 Bouldin Corn Air Quality Sensor Removed Lab none Removed from BC tower and brought back to the lab. It needs a new data card slot. The current card slot has a bad spring mechanism so cards don't physically mount.
PA-II-SD 84f3ebd5ffb1 2022-11-02 Lab none Installed Bouldin Corn Air Quality Sensor Installed at BC on the tower
CR10X 3501 2023-11-14 Lab none Maintenance Lab none Put in a new internal lithium battery and testing in the lab. May use this datalogger for the PAR/RNET sensors on the BWW roof because I was having trouble connecting to the Goldstein lab CR10X.
CR10X 13214 2023-11-14 Lab none Tested Lab none Sticker on datalogger says it has a new internal battery as of November 2022. I was able to connect but the connection kept flickering.
LI-7500A 75H-2150 2023-11-09 Lab Calibration Lab Last calibration: 2023-08-04
AGC=97.0 SDM= DAC1= DAC2=
AIU sn AIU-1039, Presure A0=58.372, A1=15.4
Ambient P=101.1kPa, Tair=22.35C, Tdew=7.4C
Zero Air at 650psi, AMP CA04119 524.77 at 775 Tdewspan=20.00
CO2 zero 0.9031 -> .9041 Offset: 4.64ppm
CO2 span 1.0207 -> 1.018 Offset: 1.96ppm
H2O zero 0.873 -> .8731 Offset: .6ppm
H2O span 1.0346 -> 1.0265 Offset: .18ppm
Notes: Using loner AMP 7550 box. Removed and re-installed on BWW tower on the same day. At the BWW tower, I refilled the wash reservoir (it was empty) and checked the HMP fan (it was working, just quiet).
LI-7500A 75H-2669 2023-11-09 Lab none Factory none Shipped back to Licor for repair of 7550 sn AIU-1866. This head was sent back to to the factory at Israel's request since it was the head connected to the 7550 when the 7550 died.
LI-7550 AIU-1866 2023-11-09 Lab none Shipped Factory none Shipped back to Licor for repair. It was sent with 7500A sn 75H-2669.
LI-7500A 75H-2176 2023-11-03 Lab Calibration Lab Last calibration: 2023-07-20
AGC=101.1 SDM= DAC1= DAC2=
AIU sn AIU-1039, Presure A0=58.372, A1=15.4
Ambient P=100.8kPa, Tair=25.1C, Tdew=9.77C
Zero Air at 700psi, AMP CA04119 524.77 at 800 Tdewspan=20.00
CO2 zero 0.868 -> .8678 Offset: -.77ppm
CO2 span 1.0095 -> 1.0116 Offset: -1.47ppm
H2O zero 0.8525 -> .8552 Offset: 15.8ppm
H2O span 0.9124 -> .9231 Offset: -.26ppm
Notes: Using loaner AMP 7550 sn AIU-1039. Dewpoint generator had low flow; fixed one of the condenser tubing which had a crack and flow was back to normal. Vertical orientation.
LI-7500A 75H-2176 2023-11-06 Lab none Installed Gilbert Tract Gas Analyzer CO2/H2O Installed at Gilbert Tract to replace sn 75H-2669 for calibration.
LI-7500A 75H-2669 2023-11-06 Gilbert Tract Gas Analyzer CO2/H2O Removed Lab none Removed from Gilbert Tract for calibration. Replaced by sn 75H-2176.
CR6 2115 2023-11-07 Loaned none Returned Lab none Returned from Yuankun Xu (Roland Burgmann Lab) and Yifang Cheng at the conclusion of their field project at the Slumgullion Landslide site in Colorado.
CR6 2114 2023-11-07 Loaned none Returned Lab none Returned from Yuankun Xu (Roland Burgmann Lab) and Yifang Cheng at the conclusion of their field project at the Slumgullion Landslide site in Colorado.
WM 1590 153804 2023-11-07 Loaned none Returned Lab none Returned from Yuankun Xu (Roland Burgmann Lab) and Yifang Cheng at the conclusion of their field project at the Slumgullion Landslide site in Colorado.
WM 1590 152603 2023-11-07 Loaned none Returned Lab none Returned from Yuankun Xu (Roland Burgmann Lab) and Yifang Cheng at the conclusion of their field project at the Slumgullion Landslide site in Colorado.
LI-610 DPG478B 2023-11-03 Lab none Maintenance Lab none The "from condenser" tubing was cracked so air flow was really low. Joe pulled out the old tubing with a pair of pliers and replaced it with fresh tubing. Air flow is better now.
LI-7550 AIU-1039 2023-11-02 Disposed none Borrowed Lab none Borrowed from AMP for while our LI-7550 sn AIU-1866 is back at Licor for repairs. Came with AMP LI-7500A sn 75H-2418, a 7550 thermistor, IRGA cable, and IRGA mount. It is running firmware 8.8.31.
LI-7500A 75H-2418 2023-11-02 Disposed none Borrowed Lab none Borrowed from AMP for while our LI-7550 sn AIU-1866 is back at Licor for repairs. Came with AMP LI-7550 sn AIU-1039, a 7550 thermistor, IRGA cable, and IRGA mount.
CS451 70011236 2023-10-27 Mayberry Water Level Removed Lab none Removed from MB because not working
LI-7550 AIU-1866 2023-10-26 Gilbert Tract Interface LI-7550 Removed Lab none Removed because of a blown fuse. We tried replacing the fuse, but it blew immediately.
LI-7500A 0418 2023-10-26 Lab none Installed Hill Slough Gas Analyzer CO2/H2O Installed at Hill Slough to replace sn 75H-2176 for calibration.
LI-7500A 75H-2176 2023-10-26 Hill Slough Gas Analyzer CO2/H2O Removed Lab none Removed from Hill Slough for calibration. Replaced by sn 0418.
LI-7500A 75H-2182 2023-10-27 Lab none Installed East End Gas Analyzer CO2/H2O Installed at East End to replace sn 75H-2667 for calibration.
LI-7500A 75H-2667 2023-10-27 East End Gas Analyzer CO2/H2O Removed Lab none Removed from East End for calibration. Replaced by sn 75H-2182.
LI-7550 AIU-1569 2023-10-27 Lab none Installed Gilbert Tract Interface LI-7550 Installed with wood screws to 2x4 to replace the broken box removed yesterday
EXO pH-ORP 22D102641 2023-10-18 Lab none Installed Hill Slough pH-ORP Installed in the Hill Slough channel after calibration in the lab. The whole sonde was raised about 20cm to keep it out of the mud.
EXO Wiped Cond/Temp 23D104030 2023-10-18 Lab none Installed Hill Slough Conductivity Sensor Installed in the Hill Slough channel after calibration in the lab. The whole sonde was raised about 20cm to keep it out of the mud.
EXO fDOM 22E100649 2023-10-18 Lab none Installed Hill Slough fDOM Installed in the Hill Slough channel after calibration in the lab. The whole sonde was raised about 20cm to keep it out of the mud.
EXO Turbidity 22E106072 2023-10-18 Lab none Installed Hill Slough Turbidity Installed in the Hill Slough channel after calibration in the lab. The whole sonde was raised about 20cm to keep it out of the mud.
EXO2 22C103416 2023-10-18 Lab none Installed Hill Slough Water Level Installed in the Hill Slough channel after calibration in the lab. The whole sonde was raised about 20cm to keep it out of the mud.
LI-7500A 75H-2182 2023-10-23 Lab Calibration Lab Last calibration: 2023-07-10
AGC=99.8 SDM= DAC1= DAC2=
AIU sn AIU-1569, Presure A0=58.004, A1=15.479
Ambient P=100.1kPa, Tair=25.2C, Tdew=15.7C
Zero Air at 700psi, AMP CA04119 524.77 at 775 Tdewspan=20.00
CO2 zero 0.8856 -> .8848 Offset: -4.04ppm
CO2 span 1.0165 -> 1.0124 Offset: 2.9ppm
H2O zero 0.8294 -> .8311 Offset: 10.9ppm
H2O span 1.0313 -> 1.0325 Offset: -.03ppm
Notes: Vertical orientation. Before calibration, cleaned dusty spars and lots of bird poop on body.
LI-7500A 0418 2023-10-23 Lab Calibration Lab Last calibration: 2023-07-19
AGC=97.3 SDM= DAC1= DAC2=
AIU sn AIU-1569, Presure A0=58.004, A1=15.479
Ambient P=100.1kPa, Tair=23.1C, Tdew=29.0C
Zero Air at 700psi, AMP CA04119 524.77 at 775 Tdewspan=20.00
CO2 zero 0.907 -> .9072 Offset: .71ppm
CO2 span 1.0069 -> 1.0066 Offset: .14ppm
H2O zero 0.933 -> .9331 Offset: .6ppm
H2O span 1.0049 -> 1.0052 Offset: -.01ppm
Notes: Vertical orientation. Changed SS from 97.3 to 100 before calibration.
LI-7500A 75H-2514 2023-10-10 Lab none Shipped Factory none Shipped back to Licor for repair
EXO pH-ORP 22D102641 2023-06-14 Lab none Installed Hill Slough pH-ORP Installed new tip on pH/ORP probe
EXO pH-ORP 22D102641 2023-10-11 Hill Slough pH-ORP Removed Lab none Removed for inspection in the lab because turbidy/fDOM/ph/ORP look weird
EXO Wiped Cond/Temp 23D104030 2023-10-11 Hill Slough Conductivity Sensor Removed Lab none Removed for inspection in the lab because turbidy/fDOM/ph/ORP look weird
EXO fDOM 22E100649 2023-10-11 Hill Slough fDOM Removed Lab none Removed for inspection in the lab because turbidy/fDOM/ph/ORP look weird
EXO Turbidity 22E106072 2023-10-11 Hill Slough Turbidity Removed Lab none Removed for inspection in the lab because turbidy/fDOM/ph/ORP look weird
EXO2 22C103416 2023-10-11 Hill Slough Removed Lab none Removed for inspection in the lab because turbidy/fDOM/ph/ORP look weird
LI-7500A 0042 2023-10-11 Lab none Installed Bouldin Corn Gas Analyzer CO2/H2O Installed at Bouldin Corn to replace sn 0418 for calibration.
LI-7500A 0418 2023-10-11 Bouldin Corn Gas Analyzer CO2/H2O Removed Lab none Removed from Bouldin Corn for calibration. Replaced by sn 0042.
LI-7500A 0073 2023-10-11 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed at Mayberry to replace sn 75H-2182 for calibration.
LI-7500A 75H-2182 2023-10-11 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from Mayberry for calibration. Replaced by sn 0073.
LI-7500A 0073 2023-10-05 Lab Calibration Lab Last calibration: 2023-06-13
AGC=100.6 SDM= DAC1= DAC2=
AIU sn AIU-1569, Presure A0=58.004, A1=15.479
Ambient P=100.39kPa, Tair=30.62C, Tdew=11.88C
Zero Air at 725psi, AMP CA04119 524.77 at 800 Tdewspan=20.00
CO2 zero 0.9161 -> .9167 Offset: 2.66ppm
CO2 span 1.0093 -> 1.0064 Offset: 2.19ppm
H2O zero 0.8328 -> .8296 Offset: -17.9ppm
H2O span 1.0281 -> 1.0109 Offset: .38ppm
Notes: Vertical orientation. Slightly larger than usual H2O zero offset
LI-7500A 0042 2023-10-05 Lab Calibration Lab Last calibration: 2023-06-13
AGC=99.7 SDM= DAC1= DAC2=
AIU sn AIU-1569, Presure A0=58.004, A1=15.479
Ambient P=100.48kPa, Tair=27.9C, Tdew=14.5C
Zero Air at 750psi, AMP CA04119 524.77 at 800 Tdewspan=20.00
CO2 zero 0.9486 -> .9473 Offset: -5.2ppm
CO2 span 1.0184 -> 1.0033 Offset: 10.51ppm
H2O zero 0.8461 -> .8474 Offset: 7.7ppm
H2O span 1.039 -> 1.0075 Offset: -.08ppm
Notes: Vertical orientation. CO2 span offset larger than usual.
AM16/32B 31675 2023-10-04 Lab none Installed Tonzi Multiplexer Tower Installed on the Tower top to replace sn 1237 which was removed due to spikes on multiple channels.
AM16/32A 1237 2023-10-04 Tonzi Multiplexer Tower Removed Lab none Removed from the Tower top due to spikes on multiple channels. Replaced by sn 31675
LI-7500A 1594 2023-10-04 Lab none Installed West Pond Gas Analyzer CO2/H2O Installed at West Pond to replace sn 75H-2514, which needs to go back to the factory for RMA (PLL error, CO2 and H2O were both 0).
LI-7500A 75H-2514 2023-10-04 West Pond Gas Analyzer CO2/H2O Removed Lab none Removed from West Pond because of PLL error; CO2 and H2O were both 0. Not sure if this is because of sensor age or because of daily power cycles from a failing solar power system. Replaced by sn 1594.