Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
GMP222 X1920001 2014-01-24 Tonzi CO2 Probe Tree2 Profile -0.08 Removed Lab none Removed from Tonzi tree #2 at -8cm for lab calibration
GMP222 Y2009109 2014-01-24 Tonzi CO2 Probe Tree2 Profile -0.04 Removed Lab none Removed from Tonzi tree #2 at -4cm for lab calibration
GMT221 F4960019 2014-01-24 Tonzi CO2 Probe Tree2 Profile -0.02 Removed Lab none Removed from Tonzi tree #2 at -2cm for lab calibration
GMP222 Z2720014 2014-01-24 Tonzi CO2 Probe Open Profile -0.08 Removed Lab none Removed from Tonzi open at -8cm for lab calibration
GMP222 X4840007 2014-01-24 Tonzi CO2 Probe Open Profile -0.04 Removed Lab none Removed from Tonzi open at -4cm for lab calibration
GMP222 Z2720012 2014-01-24 Tonzi CO2 Probe Open Profile -0.02 Removed Lab none Removed from Tonzi open at -2cm for lab calibration
GMP222 Z2720011 2014-01-24 Tonzi CO2 Probe Tree1 Profile -0.08 Removed Lab none Removed from Tonzi tree #1 at -8cm for lab calibration
GMP222 X5050014 2014-01-24 Tonzi CO2 Probe Tree1 Profile -0.04 Removed Lab none Removed from Tonzi tree #1 at -4cm for lab calibration
GMP222 Z2720013 2014-01-24 Tonzi CO2 Probe Tree1 Profile -0.02 Removed Lab none Removed from Tonzi tree #1 at -2cm for lab calibration
GMT221 F4960019 2012-03-02 Lab none Installed Tonzi CO2 Probe Tree2 Profile -0.02 Installed at Tonzi in the Tree2 set at -2cm
LED-4chan RYU-01 2013-12-15 Tonzi-Tower Damaged Tonzi-Tower A bird began to poke a hole in the incoming filter and eventually tore the filter completely off.
LED-4chan RYU-01 2013-11-07 Lab none Installed Tonzi-Tower Reinstalled on the Tonzi Tower. A wiring error swapping the Red and NIR channels was fixed. New Teflon filter.
LED-4chan RYU-01 2013-09-25 Tonzi-Tower Removed Lab none Removed from the Tonzi tower for repair of missing incoming filter
LED-4chan RYU-01 2013-08-15 Tonzi-Tower Damaged Tonzi-Tower A bird began to poke a hole in the incoming filter and eventually tore the filter completely off.
DO6400/T DO-07 2014-01-10 Mayberry DO Sensor B Removed Lab none The probe was reading high and seemed corroded so it was removed to be serviced in the lab.
DO6400/T DO-04 2014-01-14 Lab none Maintenance Lab none Due to corrosion, the probe was taken apart and left to sit in vinegar overnight. The following day I changed the membrane and filled it with electrolyte solution and it seemed to work fine after that (it was reading ~40 mV as expected).
DO6400/T DO-04 2014-01-10 Mayberry DO Sensor A Removed Lab none The probe was pulled since it was reading high and looked corroded.

LI-7500A 0418 2013-12-05 Lab none Calibration Lab none Last calibration: 2013-08-12
AGC=49 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=101.09kPa, Tair=22.90C, Tdew=-7.14C
Zero air at 1500psi, God CO2 421.22 at 1500 Tdewspan=15.17
CO2 zero 0.9014 -> 0.9014 Offset: -0.3ppm
CO2 span 1.0027 -> 1.0016 Offset: 0.48ppm
H2O zero 0.8522 -> 0.8521 Offset: -0.3ppm
H2O span 0.9825 -> 0.9806 Offset: 0.02ppm
Notes: The serial connector on the bottom of the box had a broken pin. I replaced it with one from the old sn 0065 box.
LI-7700 TG1-0203 2013-11-25 DWR Corn Gas Analyzer CH4 Moved East End Gas Analyzer CH4 The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
NR01 1454 2013-11-25 DWR Corn Net Radiometer Moved East End Net Radiometer The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
TR-525M 50229-112 2013-11-25 DWR Corn Precipitation Moved East End Precipitation The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
PTB110 H0160069 2013-11-25 DWR Corn Barometer Moved East End Barometer The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
HMP60 G4540023 2013-11-25 DWR Corn RH & Temp Moved East End RH & Temp The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
AM25T 6769 2013-11-25 DWR Corn Multiplexer Thermocouples Moved East End Multiplexer Thermocouples The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
AM16/32B 11663 2013-11-25 DWR Corn Multiplexer Met Moved East End Multiplexer Met The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
CR1000 47110 2013-11-25 DWR Corn Data Logger Met Moved East End Data Logger Met The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
PS-30M 11400073 2013-11-25 DWR Corn Solar Controller Moved East End Solar Controller The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
KD140SX-UFBS 11ZV0M0859 2013-11-25 DWR Corn Solar Panel B Moved East End Solar Panel B The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
KD140SX-UFBS 11ZV0M0830 2013-11-25 DWR Corn Solar Panel A Moved East End Solar Panel A The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
NL115 6763 2013-11-25 DWR Corn Interface NL115 Eddy Moved East End Interface NL115 Eddy The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
CR1000 38212 2013-11-25 DWR Corn Data Logger Eddy Moved East End Data Logger Eddy The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
WMP 1352 000024 2013-11-25 DWR Corn Anemometer Moved East End Anemometer The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland
LI-7500A 0073 2013-11-25 Lab none Installed East End Gas Analyzer CO2/H2O Installed on the East End Wetland tower to replace sn 0042 for calibration.
LI-7500A 0042 2013-11-25 DWR Corn Removed Lab none This sensor was removed for calibration. It was replaced by sn 0073
PQS 1 110337 2013-11-25 DWR Corn PAR Sensor Outgoing Moved East End PAR Sensor Incoming This sensor was moved from the DWR Corn construction tower to the new East End tower and installed in the incoming position because the cable of the incoming PAR sensor was cut.
PQS 1 110340 2013-11-25 DWR Corn Removed Lab none In reinstalling on the new Twitchell East End Wetland site the cable for this sensor was sheared of by the folding arm. Removed for repair in the Lab. The out going sensor was moved to the incoming location.
HFP01SC 00244 2013-11-25 Lab none Installed East End Heat Flux Plate A Installed about 2cm below the surface to the west of the tower at the Twitchell East End Wetland site.
HFP01 6499 2013-11-21 Lab none Installed East End Heat Flux Plate B Installed about 2cm below the surface to the west of the tower at the Twitchell East End Wetland site.
HFP01 6649 2013-11-25 Lab none Installed East End Heat Flux Plate C Installed about 2cm below the surface to the west of the tower at the Twitchell East End Wetland site.
LI-7500A 0041 2013-11-27 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on the Vaira tower to replace sn 0418 for calibration
LI-7500A 0418 2013-11-27 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from the Vaira Tower for calibration. Replaced by sn 0041
LI-7550 AIU-0614 2013-11-21 West Pond Interface LI-7550 Upgrade West Pond Interface LI-7550 The firmware of the 7550 box was upgraded from v6.5.2 to v6.5.5 to fix bugs with the USB memory overwrite and synchronizing the 7700 clock.
LI-7550 AIU-0397 2013-11-21 Mayberry Gas Analyzer CO2/H2O Upgrade Mayberry Gas Analyzer CO2/H2O The firmware of the 7550 box was upgraded from v6.5.2 to v6.5.5 to fix bugs with the USB memory overwrite and synchronizing the 7700 clock.
LI-7550 AIU-0674 2013-11-21 Twitchell Alfalfa Interface LI-7550 Upgrade Twitchell Alfalfa Interface LI-7550 The firmware of the 7550 box was upgraded from v6.5.2 to v6.5.5 to fix bugs with the USB memory overwrite and synchronizing the 7700 clock.
LI-7550 AIU-0650 2013-11-21 Twitchell Rice Interface LI-7500 Upgrade Twitchell Rice Interface LI-7500 The firmware of the 7550 box was upgraded from v6.5.2 to v6.5.5 to fix bugs with the USB memory overwrite and synchronizing the 7700 clock.
LI-7500A 0041 2013-11-20 Lab none Calibration Lab none Last calibration: 2013-07-09
AGC=48 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=100.18kPa, Tair=19.09C, Tdew=13.55C
Zero air at 1500psi, God CO2 421.22 at 1550 Tdewspan=15.18
CO2 zero 1.001 -> 0.9984 Offset: -8.66ppm
CO2 span 1.0086 -> 1.0139 Offset: -3.07ppm
H2O zero 0.8217 -> 0.8224 Offset: 4.0ppm
H2O span 1 -> 0.9991 Offset: 0.01ppm
Notes:
LI-7500A 0073 2013-11-20 Lab none Calibration Lab none Last calibration: 2013-07-09
AGC=59 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=100.28kPa, Tair=19.53C, Tdew=14.67C
Zero air at 1500psi, God CO2 421.22 at 1550 Tdewspan=15.18
CO2 zero 0.9576 -> 0.9579 Offset: 0.85ppm
CO2 span 1.0039 -> 1.0020 Offset: 0.98ppm
H2O zero 0.7323 -> 0.7328 Offset: 3.20ppm
H2O span 1.0259 -> 1.0042 Offset: 0.48ppm
Notes:
LI-7500A 75H-2180 2013-11-20 Lab none Calibration Lab none Last calibration: 2013-05-20
AGC=94 SDM=1 DAC1=- DAC2=-
Ambient P=99.86kPa, Tair=20.06C, Tdew=12.68C
Zero air at 1500psi, God CO2 421.22 at 1550 Tdewspan=15.18
CO2 zero 0.9133 -> 0.9148 Offset: 6.58ppm
CO2 span 1.0091 -> 1.0156 Offset: -3.52ppm
H2O zero 0.884 -> 0.8791 Offset: -28.4ppm
H2O span 0.9991 -> 1.0019 Offset: 0.05ppm
Notes:
GMP222 X1920001 2012-03-02 Lab none Installed Tonzi CO2 Probe Tree2 Profile -0.08 Installed at Tonzi in the Tree2 set at -8cm
GMP222 Z2720014 2012-02-16 Lab none Installed Tonzi CO2 Probe Open Profile -0.08 Installed at Tonzi in the Open set at -8cm
GMP222 X4840007 2012-02-16 Lab none Installed Tonzi CO2 Probe Open Profile -0.04 Installed at Tonzi in the Open set at -4cm
GMP222 Y2009109 2012-03-02 Lab none Installed Tonzi CO2 Probe Tree2 Profile -0.04 Installed at Tonzi in the Tree2 set at -4cm
GMP222 Z2720012 2012-03-02 Lab none Installed Tonzi CO2 Probe Tree2 Profile -0.02 Installed at Tonzi in the Tree2 set at -2cm
GMP222 Z2720011 2012-02-16 Lab none Installed Tonzi CO2 Probe Tree1 Profile -0.08 Installed at Tonzi in the Tree1 set at -8cm
GMP222 X5050014 2012-02-16 Lab none Installed Tonzi CO2 Probe Tree1 Profile -0.04 Installed at Tonzi in the Tree1 set at -4cm
GMP222 Z2720013 2012-02-16 Lab none Installed Tonzi CO2 Probe Tree1 Profile -0.02 Installed at Tonzi in the Tree1 set at -2cm
GMP221 Y1720006 2012-03-21 Lab none Installed Vaira CO2 probe West Profile -0.08 Installed at Vaira in the west set at -8cm
GMP221 Y2009100 2012-03-21 Lab none Installed Vaira CO2 probe East Profile -0.08 Installed at Vaira in the east set at -8cm
GMP221 Y0710013 2012-03-21 Lab none Installed Vaira CO2 probe North Profile -0.08 Installed at Vaira in the north set at -8cm
GMP221 Y0850004 2012-03-21 Lab none Installed Vaira CO2 probe West Profile -0.04 Installed at Vaira in the west set at -4cm
GMP222 Z2720015 2012-03-21 Lab none Installed Vaira CO2 probe East Profile -0.04 Installed at Vaira in the east set at -4cm
GMP222 Y1950005 2012-03-21 Lab none Installed Vaira CO2 probe North Profile -0.04 Installed at Vaira in the north set at -4cm
GMT222 G0230062 2012-03-21 Lab none Installed Vaira CO2 probe West Profile -0.02 Installed at Vaira in the west set at -2cm
GMP222 Y2030049 2012-03-21 Lab none Installed Vaira CO2 probe East Profile -0.02 Installed at Vaira in the east set at -2cm
GMT222 G0230061 2012-03-21 Lab none Installed Vaira CO2 probe North Profile -0.02 Installed at Vaira in the north set at -2cm
NL115 9774 2013-11-13 Factory Returned Lab none Returned from Campbell. They replaced the bad eject button and updated the firmware. No charge - under warranty.
USB2000-VIS-NIR USB2G4461 2013-11-08 Factory Returned Lab none Returned from calibration at Ocean Optics. Calibration sheets on file in the lab. This calibration looks as good or better than the last done in July of 2007.
USB2000-VIS-NIR USB2G4461 2013-10-21 Lab none Shipped Factory Sent to the Ocean Optics factory for calibration on RMA 1413725. The dark current had jumped up to about 200 counts over the last few months. It was a relative even offset at all wavelengths and did not seem to affect the measurements.
LI-7500A 0041 2013-11-07 Tonzi-Floor Removed Lab none Removed from the Floor Tower for calibration. Replaced by sn 0976.
LI-7500 0976 2013-11-07 Lab none Installed Tonzi-Floor Installed on the Tonzi Tower to replace sn 0041 for calibration.
LI-7500A 0073 2013-11-07 Tonzi-Tower Removed Lab none Removed from the Tonzi Tower for calibration. Replaced by sn 0035.
LI-7500A 0035 2013-11-07 Lab none Installed Tonzi-Tower Installed on the Tonzi Tower to replace sn 0073 for calibration.
LI-7500A 0035 2013-11-06 Lab none Calibration Lab none Last calibration: 2013-04-23
AGC=49 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=101.35kPa, Tair=22.84C, Tdew=4.69C
Zero Air at 1500psi, God CO2 421.22 at 1600 Tdewspan=15.16
CO2 zero 0.9386 -> 0.9393 Offset: 2.95ppm
CO2 span 1.0156 -> 1.0154 Offset: 0.03ppm
H2O zero 0.8981 -> 0.8904 Offset: -41.3ppm
H2O span 0.9842 -> 0.9744 Offset: 0.17ppm
Notes:
LI-7500 0976 2013-11-06 Lab none Calibration Lab none Last calibration: 2013-04-26
AGC=58 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=101.17kPa, Tair=23.37C, Tdew=3.35C
Zero Air at 1500psi, God CO2 421.22 at 1600 Tdewspan=15.16
CO2 zero 0.859 -> 0.8597 Offset: 2.50ppm
CO2 span 1.0096 -> 1.0073 Offset: 1.23ppm
H2O zero 0.6313 -> 0.6279 Offset: -22.3ppm
H2O span 0.9941 -> 1.0135 Offset: 0.43ppm
Notes:
LI-6400 PSC-0785 2013-11-05 Lab none Calibration Lab none Zeroed and spanned H2O and CO2 on IRGA
Neither was far off; CO2 spanned from 419ppm to 421.2ppm
H2O spanned from 14.98C to 15.16C using Dew point generator.
LI-6400 PSC-0785 2013-11-05 Lab none Calibration Lab none Zeroed and spanned H2O and CO2 on IRGA
Neither was far off; CO2 spanned from 419ppm to 421.2ppm
H2O spanned from 14.98C to 15.16C using Dew point generator.
CR10X 36771 2013-11-04 Lab none Moved Lab none I removed the silver box sn 36771 from wiring panel 10800 and installed it in the Tram wiring panel 21292. Wiring panel 10800 will go with silver box sn 31308 to Campbell for repair.
CR10X 31308 2013-11-04 Lab none Shipped Factory I tried to upload a new os in the lab in it kept failing with between 2 and 40 fragments sent. I removed the silver box from the Tram and put it in wiring panel 10800. It will be sent to Campbell on RMA 18904 for repair.
CR10X 31308 2013-10-18 Tonzi Removed Lab none The tram derailed at the far end of the track not stopping and reversing direction. Initially it reset okay moving to park, but it did not run on the hour. The data was corrupt, but I was able to upload programs and a new OS in the field. It still would not run. I brought it in for fixing.
NL115 6761 2013-10-18 Lab none Installed Tonzi-Floor Installed on the Tonzi Floor tower to replace sn 9774 that was having problems with its eject button.
NL115 9774 2013-11-04 Lab none Shipped Factory Sent to Campbell for a check on the non-functioning eject button on RMA 18887.
NL115 9774 2013-10-18 Tonzi-Floor Removed Lab none Removed from the Floor Tower. The eject button was not giving a green light to eject the card and the files were getting corrupted on a forced eject. I brought the module in for testing. Replace by sn 6761
LI-7500A 0065 2013-09-11 Lab none Installed Twitchell Alfalfa Gas Analyzer CO2/H2O installed on the Alfalfa tower to replace sn 2180 for calibration
LI-7500A 0065 2013-09-11 Lab none Calibration Lab none Last calibration: 2013-05-08
AGC=71.77 SDM=1 DAC1=- DAC2=-
Ambient P=100.08kPa, Tair=23.13C, Tdew=14.04C
Zero air at 1650psi, God CO2 421.22 at 1600 Tdewspan=15.8
CO2 zero 0.8904 -> 0.8897 Offset: -2.78ppm
CO2 span 1.0198 -> 1.0041 Offset: 8.53ppm
H2O zero 0.7022 -> 0.7040 Offset: 12.5ppm
H2O span 0.9726 -> 0.9959 Offset: -1.1ppm
Notes:
LI-7500A 75H-2180 2013-09-11 Twitchell Alfalfa Gas Analyzer CO2/H2O Removed Lab none Removed from the Alfalfa tower for calibration. Replaced by sn 0065.
CS547A 5688 2013-10-22 Lab none Tested Lab none I (Sara Knox) tested the probe in the lab since it was giving bad readings in the field. Temperatures were negative and conductivity values were off as well. I called campbell and they said it could be water intrusion that damaged the thermistor (although the resistance across the red & green wires was giving plausible values...). The guy at campbell said we could send it in, but that it would cost at least 100$ to fix it plus there is no guarantee that they could fix it. He suggested buying a new one.
CS547A 5688 2013-10-16 Mayberry Conductivity Sensor Removed Lab none Removed from Mayberry since readings were bad.
CS547A 5688 2011-01-28 Lab none Installed Mayberry Conductivity Sensor Installed at Mayberry.
GMP222 H0630070 2013-10-22 Lab none Tested Disposed Sara Knox inspected the probe in the lab. It looks like water damaged the probe & it is no longer functional.
GMP222 H0630070 2013-10-16 Mayberry CO2 Probe B Removed Lab none Removed from Tules at Mayberry since probe is no longer working due to water damage.
GMP222 H0630070 2013-04-05 Lab none Installed Mayberry CO2 Probe B Installed CO2 probe in the Tules at Mayberry.
DO6400/T DO-06 2013-09-05 Twitchell Rice DO Sensor Removed Lab none Sensor pulled since field was drained.
DO6400/T DO-06 2013-06-05 Lab none Installed Twitchell Rice-Trailer Installed probe at the rice.
LED-NDVI LED-06 2013-07-26 Lab none Installed Twitchell Alfalfa Installed on radiation boom in Alfalfa field.
LED-NDVI LED-04 2013-07-26 Twitchell Alfalfa Removed Lab none Removed from Alfalfa site for calibration
AM16/32A 1164 2013-05-30 Tonzi Removed Lab none Removed from the East sap flow station. This station had not been running for a long time. The data logger had been removed previously. The box, solar panel and above ground cables were removed also.
CS450 20010026 2013-09-05 Lab none Installed Sherman Island Installed at Sherman Island in newly dig well with perforated PVC tube just south of the computer box. The water pressure sensor is installed 124 cm below the top of the PVC pipe, and the top of the PVC pipe extends 13 cm above the ground surface. At the time of install, the water table was measured at 82 cm below ground and the water pressure reading was 0.43.
LI-7700 TG1-0203 2013-09-05 Lab none Installed DWR Corn Gas Analyzer CH4 Installed on the Corn / Construction tower. This sensor was added to the system by a direct connection to the CR1000 by Ethernet. The CR1000 program was changed to read the Ethernet signal. The 7700 was set to output at 40Hz to try and minimize the loss of messages due to clock drift.
LI-7700 TG1-0155 2013-08-28 Lab none Installed Twitchell Alfalfa Gas Analyzer CH4 Installed on the Twitchell Alfalfa tower with washer box. Plugged in to the existing 7550 box.
HMP45AC U3030032 2013-08-28 Twitchell Rice RH & Temp Removed Lab none Removed from the Twitchell Rice tower due to bad looking RH readings. Need to be tested in the lab. Replaced by sn U3030046