Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
CNR1 020476 2013-06-05 Lab none Installed Twitchell Alfalfa Installed on the radiation post at the Twitchell Alfalfa for a cross comparison with the Hukseflux NR01 sn 1570
LED-NDVI LED-03 2011-07-29 Lab none Loaned Loaned Sent to Andrew Richardson at Harvard for inter-comparison of phenology sensors.
LED-NDVI LED-05 2011-11-22 Lab none Installed Mayberry LED sensor This LED sensor was installed in the Mayberry Tule Tower. IT was not connected to the data logger until 12-20 and data may be bad for a while longer.
CNR1 020476 2013-05-09 Sherman Island Net Radiometer 4-way Removed Lab none This CNR1 was removed from the Sherman tower due to negative shortwave out readings at night. It was replace by CNR1 sn 990181
CNR1 990181 2013-05-09 Lab none Installed Sherman Island Net Radiometer 4-way This CNR1 was installed on the Sherman Tower to replace CNR1 sn 020476. The old CNR1 had negative shortwave readings at night.
LI-800 AKC-0479 2013-05-08 Tonzi Removed Lab none This Li800 was removed from the CO2 profile system on the Tonzi Tower where is was often drifting out of range and railing.
NL115 6761 2013-05-15 Vaira Removed Lab none This NL115 was removed from Vaira along with CR1000 sn 47108 where they were used to collect images from the Starsot Phenocam. They were replaced by a Raspberry Pi
CR1000 47108 2013-05-15 Vaira Removed Lab none This CR1000 was removed from Vaira along with NL115 sn 6761 where they were used to collect images from the Starsot Phenocam. They were replaced by a Raspberry Pi
AM25T 6767 2013-05-24 Lab none Installed Twitchell Alfalfa Multiplexer Thermocouple Installed in the box at the Alfalfa tower to collect data from soil sensors
LED-NDVI LED-04 2013-05-24 Lab none Installed Twitchell Alfalfa Installed on the radiation post in the alfalfa field west of the scaffolding.
PS-30M 11400080 2013-05-24 Lab none Installed Twitchell Alfalfa Installed in the box at the Alfalfa tower. Connected to one 140W panel and two G27 batteries.
AM16/32B 11662 2013-05-24 Lab none Installed Twitchell Alfalfa Multiplexer Radiation Installed on the radiation post in the alfalfa field west of the scaffolding to collect the radiation data.
CR10X 35474 2013-05-24 Lab none Installed Twitchell Alfalfa Data Logger Radiation Installed on the radiation post in the alfalfa field west of the scaffolding to collect the radiation data.
CR1000 47108 2013-05-24 Lab none Installed Twitchell Alfalfa Data Logger Met Installed in the box at the Alfalfa tower to collect data from soil sensors and the HMP60 sn G4540021
LI-7550 AIU-0674 2013-05-24 Lab none Installed Twitchell Alfalfa Interface LI-7550 Installed on the north side of the scaffolding at the Alfalfa site with head 2180
LI-7500A 75H-2180 2013-05-24 Lab none Installed Twitchell Alfalfa Gas Analyzer CO2/H2O Installed on the northwest corner of the scaffolding at the Alfalfa site with box 0674
WM 1590 120908 2013-05-24 Lab none Installed Twitchell Alfalfa Anemometer Installed on the northwest corner of the scaffolding at the Alfalfa site.
FMA RMT-200 05-0010 2013-06-17 Lab none Calibration Lab none Last calibration: 2012-03-18
Cell Pressure=156.27Torr, Cell Temperature=24.76C, Ring Time=12.762usec
Primary CH4 in Air at >1900 psi
CH4 Span=1.89919 ppm
CH4 = 1.895 -> 1.899 Offset: -4ppb
Notes: Done in the lab with primary NOAA GMD standard. Cross cal with secondary CH4 tank = 4.995 ppm (n = 164). Placed new label on secondary CH4 tank. Last cross cal of 4.982 ppm on June 2, 2010.
ML2x 377/009 2013-05-24 Lab none Installed Twitchell Alfalfa Installed at the Twitchell Alfalfa site. This probe was installed vertically at 20cm below the surface.
ML2x 377/008 2013-05-24 Lab none Installed Twitchell Alfalfa Installed at the Twitchell Alfalfa site. This probes was installed horizontally at 10cm below the surface.
PQS 1 110339 2013-05-24 Lab none Installed Twitchell Alfalfa PAR Sensor Reflected Installed at the Twitchell Alfalfa site. This PAR sensor is mounted to measure reflected PAR. This sensor is on the radiation post in the field west of the scaffolding.
PQS 1 110338 2013-05-24 Lab none Installed Twitchell Alfalfa PAR Sensor Incoming Installed at the Twitchell Alfalfa site. This PAR sensor is mounted to measure incoming PAR. This sensor is on the radiation post in the field west of the scaffolding.
HMP60 G4540021 2013-05-24 Lab none Installed Twitchell Alfalfa RH & Temp Installed at the Twitchell Alfalfa site.
HFP01 6498 2013-05-24 Lab none Installed Twitchell Alfalfa Installed at the Twitchell Alfalfa site
HFP01 6342 2013-05-24 Lab none Installed Twitchell Alfalfa Installed at the Twitchell Alfalfa site
HFP01 6491 2013-05-24 Lab none Installed Twitchell Alfalfa Installed at the Twitchell Alfalfa site
NR01 1570 2013-05-24 Lab none Installed Twitchell Alfalfa Net Radiometer 4-way Installed at the Twitchell Alfalfa site on the radiation post in the field west of the scaffolding
LI-7500A 75H-2180 2013-05-20 Lab none Calibration Lab none Last calibration: 2012-12-12
AGC=90 SDM=1 DAC1=- DAC2=-
Ambient P=100.46kPa, Tair=27.2C, Tdew=12C
Zero air at 1800psi, CO2 in air 421.22 at 1700 Tdewspan=15
CO2 zero 0.9145 -> 0.9133 Offset: -5.41ppm
CO2 span 1.009 -> 1.0091 Offset: 0.07ppm
H2O zero 0.8788 -> 0.8840 Offset: 33.6ppm
H2O span 0.9989 -> 0.9991 Offset: 0.1ppm
Notes: Upgraded firmware to version 6.5.2 (on box SN 0674) and now using new interface version 6.5.0. Re-entered calibration coefficients from last factory calibration (12/12/12) since we forgot to save the config file last time.
LI-7500A 75H-2180 2012-12-12 Factory Calibration Factory Last calibration:
AGC= SDM= DAC1= DAC2=
Ambient P=kPa, Tair=C, Tdew=C
at psi, 744 at Tdewspan=12
CO2 zero -> 0.9145 Offset: ppm
CO2 span -> 1.0090 Offset: ppm
H2O zero -> 0.8788 Offset: ppm
H2O span -> 0.9989 Offset: ppm
Notes: Factory calibration with upgrade of firmware and external connector board
LI-7500A 75H-2176 2013-04-26 Lab none Calibration Lab none Last calibration: 2013-02-05
AGC= SDM=1 DAC1=none DAC2=none
Ambient P=kPa, Tair=C, Tdew=C
Zero air at 1700psi, CO2 in air 392.30 at Tdewspan=15.04
CO2 zero 0.8676 -> 0.8676 Offset: 1.0ppm
CO2 span 1.0038 -> 1.0038 Offset: -4.7ppm
H2O zero 0.8539 -> 0.8539 Offset: 3.8ppm
H2O span 0.9906 -> 0.9906 Offset: 0.42ppm
Notes: Last calibration was done at factory. I felt that the offsets were small enough that I did not recalibrate at this time.
LI-7500A 75H-2176 2013-02-05 Factory Calibration Lab none Last calibration: 2012-08-29
AGC= SDM= DAC1= DAC2=
Ambient P=kPa, Tair=C, Tdew=C
at psi, at Tdewspan=
CO2 zero 0.8694 -> 0.8676 Offset: ppm
CO2 span 1.0152 -> 1.0038 Offset: ppm
H2O zero 0.8534 -> 0.8539 Offset: ppm
H2O span 0.9979 -> 0.9906 Offset: ppm
Notes: Factory calibration
LI-6262 IRG3-1079 2013-05-08 Lab none Calibration Lab none Calibrated in differential mode for double check of secondary standard. Ambient temperature was 22.52C, pressure was 101.18kPa. Using Zero air (1700psi) and god bottle 421.22ppm CO2 (1700psi).
Flowing zero air in both sample and reference
CO2 -4.15ppm - adjusted to 0.0
H2O 0.0050 - did not adjust
Flowing zero air in reference and god bottle in sample
CO2 = 426.2ppm adjusted to 421.22ppm.
Flowing zero air in reference and secondary standard in sample, I recorded serial data with Hyperterm and took an average of 409 points. The new tank is 337.64ppm
LI-7500A 0065 2013-05-08 Lab none Calibration Lab none Last calibration: 2012-12-13
AGC=15.5 SDM=1 DAC1=none DAC2=none
Ambient P=101.55kPa, Tair=23.16C, Tdew=10.26C
Zero air at 1700psi, God bottle 421.22 at 1700 Tdewspan=15.03
CO2 zero 0.8901 -> 0.8904 Offset: 0.90ppm
CO2 span 1.001 -> 1.0198 Offset: -10.07ppm
H2O zero 0.7016 -> 0.7022 Offset: 4.2ppm
H2O span 0.9935 -> 0.9726 Offset: 0.44ppm
Notes: Secondary CO2 standard seemed low at 344.62. I rechecked it with the LI6262 and got even lower value about 337. I calibrated with the god bottle but the IGRA was still off about 10ppm. I double checked the secondary standard and it read 335 - okay.
LI-7500A 0065 2012-12-13 Factory Calibration Lab none Last calibration: 2012-08-09
AGC= SDM= DAC1= DAC2=
Ambient P=kPa, Tair=C, Tdew=C
at psi, at Tdewspan=
CO2 zero 0.8715 -> 0.8901 Offset: ppm
CO2 span 1.0183 -> 1.0010 Offset: ppm
H2O zero 0.6361 -> 0.7016 Offset: ppm
H2O span 1.0392 -> 0.9935 Offset: ppm
Notes: Factory calibration
LI-7500 0976 2013-04-26 Lab none Calibration Lab none Last calibration: 2013-02-26
AGC=58 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=100.98kPa, Tair=18.15C, Tdew=9.01C
Zero air at 1700psi, CO2 in air 392.30 at 1900 Tdewspan=15.04
CO2 zero 0.8594 -> 0.8590 Offset: -1.65ppm
CO2 span 1.0105 -> 1.0096 Offset: 0.45ppm
H2O zero 0.629 -> 0.6313 Offset: 16.4ppm
H2O span 1.0101 -> 0.9941 Offset: 0.28ppm
Notes:
LI-7500A 0035 2013-04-23 Lab none Calibration Lab none Last calibration: 2013-02-04
AGC=49 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=100.27kPa, Tair=24.57C, Tdew=1.18C
Zero air at 1750psi, CO2 in air 392.30 at 1900 Tdewspan=15.03
CO2 zero 0.9419 -> 0.9386 Offset: -13.70ppm
CO2 span 1.015 -> 1.0156 Offset: -0.3ppm
H2O zero 0.8846 -> 0.8981 Offset: +70.5ppm
H2O span 0.8179 -> 0.9842 Offset: -3.77ppm
Notes: Unusually large offsets except for CO2 span, but otherwise okay.
LI-7500A 0042 2013-04-23 Lab none Calibration Lab none Last calibration: 2013-02-04
AGC=53 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=100.36kPa, Tair=26.27C, Tdew=-1.5C
Zero air at 1750psi, CO2 in air 392.30 at 1900 Tdewspan=15.03
CO2 zero 0.9508 -> 0.9504 Offset: -1.81ppm
CO2 span 1.0084 -> 1.0033 Offset: 2.55ppm
H2O zero 0.8575 -> 0.8499 Offset: -3.4ppm
H2O span 0.9872 -> 0.9779 Offset: 0.23ppm
Notes: Last H2O zero and span were slightly different than recorded. H2O zero was 0.8505 and span was 0.9892
NR01 1720 2013-04-10 Lab none Installed Tonzi-Tower This sensor was installed on the radiation boom at the top of the tower. It is next to the existing NR-lite and wired to the AM16/32 on the CR23X6
ML2x 377/008 2013-04-26 DWR Corn Removed Lab none This sensor was run over by a plow in the corn field. It is intact with no obvious damage but untested.
ML2x 377/009 2013-04-26 DWR Corn Removed Lab none This sensor was run over by a plow in the corn field. The cable was cut and the sensor was not found.
ML2x 377/010 2013-04-26 DWR Corn Lost Disposed This sensor was run over by a plow in the corn field. The sensor was recovered, but the sensor was cut. Likely repairable.
HFP01 6492 2013-04-26 DWR Corn Lost Disposed This sensor was run over by a plow in the corn field. The cable was cut and the sensor was not found.
HFP01 6491 2013-04-26 DWR Corn Removed Lab none This sensor was run over by a plow in the corn field. It is intact with no obvious damage but untested.
HFP01 6343 2013-04-26 DWR Corn Lost Disposed This sensor was run over by a plow in the corn field. It was recovered but broken in half.
LI-7500 0976 2013-04-26 Lab none Installed DWR Corn Installed on the DWR-Corn tower to replace sn 0073 for calibration
LI-7500A 0073 2013-04-26 DWR Corn Removed Lab none Removed from the DWR-Corn tower for calibration. Replaced by sn 0976
LI-7500A 0035 2013-04-26 Lab none Installed Sherman Island Gas Analyzer CO2/H2O Installed on the Sherman tower to swap out sn 0041 for calibration
LI-7500A 0041 2013-04-26 Sherman Island Gas Analyzer CO2/H2O Removed Lab none Removed from the Sherman tower for calibration. Replaced by sn 0035
LI-7500A 0042 2013-04-24 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on the Vaira tower to swap out sn 0976 for calibration
LI-7500 0976 2013-04-24 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from the Vaira tower for calibration. Replaced by sn 0042
BF5 25/03 2013-04-10 Lab none Installed Tonzi-Tower Installed on the radiation boom at the tower top and connected to the AM16/32 on the tower top CR23X
HMP45AC T2130005 2013-04-19 Lab none Installed Tonzi-Tower Installed on the Tonzi tower at the 2nd from top (6.0m) CO2 profile inlet location. Wired to the AM16/32 multiplexor connected to the tower top CR23X
HMP45AC T1250012 2013-04-19 Lab none Installed Tonzi-Tower Installed on the Tonzi tower at the 2nd from bottom (1.8m) CO2 profile inlet location. Wired to the AM16/32 multiplexor connected to the tower top CR23X
HMP45AC T0720012 2013-04-19 Lab none Installed Tonzi-Tower Installed on the Tonzi tower at the bottom (0.35m) CO2 profile inlet location. Wired to the AM16/32 multiplexor connected to the tower top CR23X
HFP01SC 00067 2013-04-24 Lab none Installed Tonzi-SoilCO2 Installed as SHF#2 on the soil CO2 CR23X and placed in the ground to the south of the data logger box
HFP01 000141 2013-04-24 Lab none Installed Tonzi-SoilCO2 Installed as SHF#1 on the soil CO2 CR23X and placed in the ground to the south of the data logger box
LI-6262 IRG3-1079 2013-04-22 Lab none Calibration Lab none Calibrated in differential mode for check of new secondary standard. Ambient temperature was 28.8C, pressure was 100.55kPa. Using N2 (1100psi) and god bottle 402.69ppm CO2 (1800psi).
Flowing N2 in both sample and reference
CO2 +3ppm - adjusted to 0.0
H2O -0.19 - railed
Flowing N2 in reference and god bottle in sample
CO2 = 401.5ppm adjusted to 402.69ppm.
Flowing N2 in reference and new secondary standard in sample, I recorded serial data with Hyperterm and took an average of 587 points. The new tank is 404.02ppm
LI-7500A 0035 2013-04-19 Tonzi-Tower Removed Lab none Removed from the Tower for calibration. Replaced by sn 0418
LI-7500A 0042 2013-04-19 Tonzi-Floor Removed Lab none Removed from the Floor tower for calibration. Replaced by sn 1594
LI-7500A 0418 2013-04-19 Lab none Installed Tonzi-Tower Swapped on to the Tower to replace sn 0035 for calibration
LI-7500A 1594 2013-04-19 Lab none Installed Tonzi-Floor Swapped on to the Floor Tower to replace sn 0042 for calibration.
LI-7500A 1594 2013-04-18 Lab none Calibration Lab none Last calibration: 2012-10-23
AGC=51 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=101.52kPa, Tair=23.81C, Tdew=6.77C
Zero Air at 1700psi, CO2 in Air 392.3 at 1700 Tdewspan=15.04
CO2 zero 0.8674 -> 0.8649 Offset: -9.87ppm
CO2 span 1.0021 -> 1.0179 Offset: -7.8ppm
H2O zero 0.8857 -> 0.8963 Offset: 56.4ppm
H2O span 0.8959 -> 0.9956 Offset: -2.18ppm
Notes: Offsets a little larger than usual
LI-7500A 0418 2013-04-18 Lab none Calibration Lab none Last calibration: 2012-10-23
AGC=43 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=101.71kPa, Tair=22.02C, Tdew=4.42C
Zero air at 1700psi, CO2 in air 392.30 at 1700 Tdewspan=15.04
CO2 zero 0.9011 -> 0.9017 Offset: 2.26ppm
CO2 span 1.0085 -> 1.0104 Offset: -0.9ppm
H2O zero 0.8516 -> 0.8497 Offset: -10.7ppm
H2O span 1 -> 0.9871 Offset: ppm
Notes:
GMP222 H1630066 2013-04-04 Lab none Maintenance Lab none
GMP222 H1630066 2013-03-28 Mayberry CO2 Probe B Removed Lab none We removed the probe since it was reading 5000mV even we were put the sensor in the air.
DO6400/T DO-07 2013-03-14 Lab none Installed Mayberry DO Sensor B Reinstalled lower DO probe at the Tule tower
LI-7700 TG1-0155 2013-03-20 Lab none Calibration Lab none Calibration Location: Lab
Last calibration: 2012-10-31
RSSI=89%, Optical RH=4%
Ambient P=100.8kPa, Tair=23C
UHP N2 at 1100psi, 2nd CH4 in air 3.875 at 1800
CH4 Zero Offset: 0.0ppm
CH4 Span Offset: 0.035ppm
Notes: Last calibrated by Frank Anderson.
LI-7500A 0418 2013-02-27 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from the Vaira Tower by Siyan for calibration. Replaced by sn 0976.
LI-7500 0976 2013-02-27 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on the Vaira tower by Siyan to replace sn 0418 for calibration.
LI-7500A 75H-2182 2013-02-14 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed to replace sn 2150 for upgrade at Licor
LI-7550 AIU-0397 2013-02-14 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed to replace sn 0614 for upgrade at Licor
LI-7500A 75H-2150 2013-02-14 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from the Mayberry tower with AIU-0614 for upgrade at Licor
LI-7550 AIU-0614 2013-02-14 Mayberry Tower Removed Lab none Removed from the Mayberry tower with head 2150 for upgrade at Licor
FMA RMT-200 08-0114 2013-03-14 Lab none Installed Sherman Island Installed in the Sherman Island box by Cove to replace sn 05-0010. 05-0010 was removed due to low pressure in low flow mode.
FMA RMT-200 05-0010 2013-03-14 Sherman Island Removed Lab none Removed from the Sherman Island box by Cove due to low pressure in the low flow mode. Replaced by sn 08-0114.
FMA RMT-200 05-0010 2013-03-18 Lab none Calibration Lab none Last calibration: 2012-08-23
Cell Pressure=157.32Torr, Cell Temperature=24.40C, Ring Time=12.694usec
2nd CH4 in Air at psi
CH4 Span=3.875ppm
CH4 = 3.888 -> 3.872 Offset: -13ppb
Notes: Done in the lab after cleaning the 10um filter infront of the pressure controller
AM16/32A 1237 2013-03-13 Lab none Installed Tonzi-Tower Installed in the cr23x box near the top of the tower in preparation for adding new diffuse PAR and 4-band radiometer. Currnetly not connected.
DO6400/T DO-07 2013-03-12 Lab none Calibration Lab none DO-07 was calibrated in the lab: M = 8.73/36.8 (mg/L)/mV (aka ppm/mV) @ temp = 21.5 C and press.= 101.5 Kpa
DO6400/T DO-07 2013-02-28 Lab none Removed Lab none Removed for testing in lab since when holding it out of water at Mayberry the readings were decreasing instead of going back to atmospheric.
DO6400/T DO-07 2013-03-12 Lab none Maintenance Lab none Replaced membrane. Previous one appeared to be torn. readings seem much better now.
DO6400/T DO-04 2013-02-28 Lab none Installed Mayberry DO Sensor A Installed in the surface at Mayberry about 10 cm below surface.
DO6400/T DO-07 2013-02-28 Mayberry DO Sensor B Removed Lab none Removed for testing in lab since when holding it out of water at Mayberry the readings were decreasing instead of going back to atmospheric.
FMA RMT-200 08-0114 2013-03-12 Lab none Maintenance Lab none The ring time was around 11.8usec so I cleaned the mirrors before likely putting it in at Sherman later this week. After two attempts at cleaning the mirrors the ring time seems to be steady at about 16.8usec
DO6400/T DO-04 2013-02-26 Lab none Maintenance Lab none This sensor was pulled from the rice since the field was drained. I (Sara) cleaned it and replaced the membrane since it had been a while. I left it without electrolyte solution until we install it in the field again to minimize corrosion.
LI-7500 0976 2013-02-26 Lab none Calibration Lab none Last calibration: 2012-11-06
AGC=58 SDM=7 DAC1=0-1000 DAC2=10-25
Ambient P=101.10kPa, Tair=16.57C, Tdew=7.62C
Zero air at 1600psi, 2nd CO2 in air 392.30 at 1800 Tdewspan=15.05
CO2 zero 0.8599 -> 0.8594 Offset: -1.61ppm
CO2 span 1.0056 -> 1.0105 Offset: -2.45ppm
H2O zero 0.6233 -> 0.6290 Offset: 42.2ppm
H2O span 1.0086 -> 1.0101 Offset: -0.03ppm
Notes: H2O span fudged by 0.07C
DO6400/T DO-06 2013-02-25 Lab none Maintenance Lab none This sensor was givning low readings. Sara cleaned, replaced the membrane and refilled the electrolyte for this sensor. Afterwards its readings were reasonable.
DO6400/T DO-06 2013-02-21 Mayberry DO Sensor A Removed Lab none Removed from the upper water location near the tule tower at Mayberry. It was reading low and did not climb when exposed to the air. Brought to the lab for maintenance.
DO6400/T DO-04 2013-02-21 Twitchell Rice DO Sensor Removed Lab none Removed from the now drained field at Tiwtchell. There will be no water in the field until after the rice is up late this coming spring.
LI-7700 TG1-0211 2013-02-21 Twitchell Rice Gas Analyzer CH4 Calibration Twitchell Rice Gas Analyzer CH4 Calibration Location: Twitchell
Last calibration: 2012-09-06
RSSI=65%, Optical RH=6%
Ambient P=102.1kPa, Tair=7.87C
Zero Air at 1800psi, 2nd CH4 in Air 4.982 at 1300
CH4 Zero Offset: 0.005ppm
CH4 Span Offset: 0.018ppm
Notes:
LI-7700 TG1-0224 2013-02-21 Mayberry Gas Analyzer CH4 Calibration Mayberry Gas Analyzer CH4 Calibration Location: Mayberry
Last calibration: 2012-09-06
RSSI=85%, Optical RH=3%
Ambient P=101.97kPa, Tair=14.4C
Zero Air at 1800psi, 2nd CH4 in Air 4.982 at 1300
CH4 Zero Offset: 0.011ppm
CH4 Span Offset: 0.010ppm
Notes: The 7700 had lost line lock and was manually lock prior to calibration.
LI-7700 TG1-0223 2013-02-19 West Pond Gas Analyzer CH4 Calibration West Pond Gas Analyzer CH4 Calibration Location: West Pond
Last calibration: 2012-09-06
RSSI=66.8%, Optical RH=1.0%
Ambient P=101.98kPa, Tair=10.8C
Zero Air at 1800psi, 2nd CH4 in Air 4.982 at 1300
CH4 Zero Offset: 0.016ppm
CH4 Span Offset: 0.006ppm
Notes:
LI-7550 AIU-0674 2013-02-12 Factory Upgrade Lab none Returned from Licor with 75H-2176 after repair for the condensation problem. The external connector circuit board at the bottom of the box has been completely sealed. New firmware v6.0.0 has been loaded on the box and requires new Windows interface software. Pressure Sensor sn PX-2828 A0=57.462, A1=15.200.
LI-7500A 75H-2176 2013-02-12 Lab none Upgrade Lab none Returned from Licor with AIU-0674 after repair of condensation problem. The firmware was updated and it was recalibrated.
CO2: A=1.50515E2, B=4.94461E2, C=4.84055E7, D=-1.58118E10, E=2.05944E12, XS=-0.0014, Z=-2.10000E-3, zero=0.8676, span=1.0038
H2O: A=4.89101E3, B=3.36421E6, C=-5.74265E7, XS=-0.0014, Z=2.13000E-2, zero=0.8539, span=0.9906, CX=40300
SS: B=2.213, C=3.942
LI-7550 AIU-0397 2013-02-11 Factory Upgrade Lab none Returned from Licor with 75H-2182 after repair for the condensation problem. The external connector circuit board at the bottom of the box has been completely sealed. New firmware v6.0.0 has been loaded on the box and requires new Windows interface software. Pressure Sensor sn PX-2379 A0=57.091, A1=15.210.
LI-7500A 75H-2182 2013-02-11 Factory Upgrade Lab none Returned from Licor with AIU-0397 after repair of condensation problem. The firmware was updated and it was recalibrated.
CO2: A=1.59506E2, B=1.38372E3, C=5.57490E7, D=--1.93676E10, E=2.63113E12, XS=-0.0002, Z=-4.20000E-3, zero=0.8837, span=1.0037
H2O: A=5.37667E3, B=4.39566E6, C=-3.30591E8, XS=-0.0013, Z=1.62000E-2, zero=0.8417, span=0.9978, CX=41300
SS: B=2.154, C=4.196
FMA RMT-200 08-0114 2013-02-12 Lab none Calibration Lab none Last calibration: 2013-01-29
Cell Pressure=143.19Torr, Cell Temperature=22.14C, Ring Time=11.907usec
2nd CH4 in air at 1400psi
CH4 Span=4.982ppm
CH4 = 4.960 -> 4.982 Offset: 22ppb
Notes: Calibration for check of new 400ppm CO2 cal tank. After calibrating the LGR data was recorded from the new tank. An average of 146 point was 3.875ppm CH4
LI-6262 IRG3-1079 2013-02-12 Lab none Calibration Lab none Calibrated in differential mode for check of new secondary standard. Ambient temperature was 23.55C, pressure was 101.98kPa. Using N2 (1600psi) and god bottle 402.69ppm CO2 (1800psi).
Flowing N2 in both sample and reference
CO2 -3.79 - adjusted to 0.0
H2O -0.0863 - adjusted to 0.0
Flowing N2 in reference and god bottel in sample
CO2 = 402.90ppm adjusted to 402.69ppm.
Flowing N2 in reference and new secondary standard in sample, I recorded serial data with Hyperterm and took an average of 201 points. The new tank is 344.62ppm
HP-127-1.0-1.3-71P P05 2013-01-16 Lab none Calibration Lab none Calibrated by Sebastian at University of British Columbia: Multiplier = 95.86(W/m2)/mV
HP-127-1.0-1.3-71P P04 2013-01-16 Lab none Calibration Lab none Calibrated by Sebastian at University of British Columbia: Multiplier = 106.2(W/m2)/mV
HP-127-1.0-1.3-71P P03 2013-01-16 Lab none Calibration Lab none Calibrated by Sebastian at University of British Columbia: Multiplier = 100.2(W/m2)/mV