Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
LI-7500A 75H-2150 2013-12-19 Lab none Installed West Pond Gas Analyzer CO2/H2O Installed on the West Pond Tower to replace sn 75H-2182 for calibration.
LI-7500A 75H-2150 2013-12-18 Lab none Calibration Lab none Last calibration: 2013-07-09
AGC=95.3 SDM=1 DAC1=- DAC2=-
Ambient P=99.78kPa, Tair=22.32C, Tdew=7.8C
Zero Air at 1500psi, God CO2 421.22 at 1500 Tdewspan=15.16
CO2 zero 0.9009 -> 0.9012 Offset: 1.12ppm
CO2 span 1.0016 -> 1.0016 Offset: -0.05ppm
H2O zero 0.8636 -> 0.8643 Offset: 5.3ppm
H2O span 1.0091 -> 0.9987 Offset: 0.25ppm
Notes:
LI-7500A 75H-2150 2013-12-06 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from the Mayberry Tower for calibration. Replaced by sn 75H-2180
LI-7500A 75H-2180 2013-12-06 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed on the Mayberry tower to replace sn 2150 for calibration
LI-7500A 75H-2182 2013-12-19 West Pond Gas Analyzer CO2/H2O Removed Lab none Removed from the West Pond Tower for calibration. Replaced by sn 75H-2150.
LI-7500A 0073 2011-12-18 Tonzi-Floor Removed Lab none Removed from Tonzi Floor for calibration. Replaced by sn ?
LI-7500 0976 2012-07-25 Lab none Installed Tonzi-Tower Installed on the Tonzi Tower to replace sn 1594 for calibration.
LI-7500A 0041 2009-12-14 Lab none Calibration Lab none Last calibration: 2009-09-15
AGC=55 SDM= DAC1= DAC2=
Ambient P=kPa, Tair=C, Tdew=C
at psi, at Tdewspan=
CO2 zero 0.9882 -> 0.8450 Offset: ppm
CO2 span 0.9972 -> 1.0000 Offset: ppm
H2O zero 0.7360 -> 1.107 Offset: ppm
H2O span 1.0197 -> 0.9920 Offset: ppm
Notes: Embedded software v3.0.0. Not a good report - take with a grain of salt.
LI-7500A 0041 2011-03-30 Lab none Installed Tonzi-Tower Installed on the Tonzi Tower to replace sn 0976 for calibration
LI-7500A 0041 2012-07-25 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on the Vaira Tower to replace sn 0042 for calibration.
LI-7500A 0042 2010-04-06 Lab none Installed Sherman Island-Levee Gas Analyzer CO2/H2O Installed on the new Sherman Levee tower.
LI-7500A 0042 2009-12-09 Lab none Installed Twitchell Rice Gas Analyzer CO2/H2O Installed on the Twitchell Rice tower to replace 0041 for calibration.

Not sure what the note on 2009-09-09 indicates since this sensor was only installed at the rice on 20091209 and prior to that sn 0041 was installed at the rice on 20090731 (there are no indications in the field notes that would suggest this sensor was installed at the rice on 2009-09-09).
DO6400/T DO-07 2014-01-28 Lab none Disposed Lab none This probe is no longer working - probably due to corrosion.
GMP221 Y1720006 2014-01-24 Vaira CO2 probe West Profile -0.08 Removed Lab none Removed from Vaira west plot at -8cm for lab calibration
GMP221 Y2009100 2014-01-24 Vaira CO2 probe East Profile -0.08 Removed Lab none Removed from Vaira east plot at -8cm for lab calibration
GMP221 Y0710013 2014-01-24 Vaira CO2 probe North Profile -0.08 Removed Lab none Removed from Vaira north plot at -8cm for lab calibration
GMP221 Y0850004 2014-01-24 Vaira CO2 probe West Profile -0.04 Removed Lab none Removed from Vaira west plot at -4cm for lab calibration
GMP222 Z2720015 2014-01-24 Vaira CO2 probe East Profile -0.04 Removed Lab none Removed from Vaira east plot at -4cm for lab calibration
GMP222 Y1950005 2014-01-24 Vaira CO2 probe North Profile -0.04 Removed Lab none Removed from Vaira north plot at -4cm for lab calibration
GMT222 G0230062 2014-01-24 Vaira CO2 probe West Profile -0.02 Removed Lab none Removed from Vaira west plot at -2cm for lab calibration
GMP222 Y2030049 2014-01-24 Vaira CO2 probe East Profile -0.02 Removed Lab none Removed from Vaira east plot at -2cm for lab calibration
GMT222 G0230061 2014-01-24 Vaira CO2 probe North Profile -0.02 Removed Lab none Removed from Vaira north plot at -2cm for lab calibration
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.