Equipment and Calibration History
Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 [59] 60 61 62 63 64 65 66 67 68| Ser No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 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 |
| LI-7500A 75H-2176 | 2013-08-28 | Lab none | Installed | Twitchell Rice Gas Analyzer CO2/H2O | Installed on the Twitchell Rice tower to replace sn 0065 for calibration |
| LI-7500A 0065 | 2013-08-28 | Twitchell Rice Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Twitchell Rice tower for calibration. Replaced by sn 2176 |
| LI-7500A 75H-2182 | 2013-08-20 | Lab none | Calibration | Lab none | Last calibration: 2013-05-02 AGC=83.9 SDM=1 DAC1=na DAC2=na Ambient P=100.10kPa, Tair=23.58C, Tdew=15.58C Zero Air at 1700psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.8837 -> 0.8802 Offset: -16.20ppm CO2 span 1.0037 -> 0.9947 Offset: 3.47ppm H2O zero 0.8417 -> 0.8471 Offset: 34.9ppm H2O span 0.9978 -> 0.9854 Offset: 0.27ppm Notes: Last cal was don at the factory after upgrade. Large zero offsets. |
| LI-7500A 1594 | 2013-08-20 | Lab none | Calibration | Lab none | Last calibration: 2013-04-18
AGC=51 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.36kPa, Tair=25.60C, Tdew=13.86C Zero Air at 1700psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.8649 -> 0.8647 Offset: -1.0ppm CO2 span 1.0179 -> 1.0135 Offset: 2.28ppm H2O zero 0.8963 -> 0.8970 Offset: 0.10ppm H2O span 0.9956 -> .9973 Offset: -0.04ppm Notes: |
| LI-7500A 0042 | 2013-08-20 | Lab none | Calibration | Lab none | Last calibration: 2013-04-23 AGC=54 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.28kPa, Tair=24.51C, Tdew=13.40C Zero Air at 1700psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.9504 -> 0.9503 Offset: -0.16ppm CO2 span 1.0033 -> 1.0 Offset: 1.23ppm H2O zero 0.8499 -> 0.8499 Offset: -0.06ppm H2O span 0.9779 -> 0.9929 Offset: -0.33ppm Notes: |
| LI-7500A 75H-2176 | 2013-08-27 | Lab none | Calibration | Lab none | Last calibration: 2013-05-02 AGC=87 SDM=1 DAC1=na DAC2=na Ambient P=99.84kPa, Tair=26.53C, Tdew=13.56C Zero Air at 1700psi, God CO2 421.22 at 1600 Tdewspan=15.18 CO2 zero 0.8676 -> 0.8685 Offset: 3.78ppm CO2 span 1.0038 -> 1.0099 Offset: -3.34ppm H2O zero 0.8539 -> 0.8539 Offset: 0.0ppm H2O span 0.9906 -> 1.0 Offset: -0.2ppm Notes: |
| LI-7500A 0042 | 2013-08-21 | Lab none | Installed | DWR Corn | Installed on the Corn / Construction tower to replace sn 0976 for calibration |
| LI-7500 0976 | 2013-08-21 | DWR Corn | Removed | Lab none | Removed from the Corn / Construction tower for calibration. Replaced with sn 0042 |
| LI-7500A 75H-2182 | 2013-08-21 | Lab none | Installed | West Pond Gas Analyzer CO2/H2O | Installed on the West Pond tower to replace sn 2176 for calibration |
| LI-7500A 75H-2176 | 2013-08-21 | West Pond Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the West Pond tower for calibration. Replaced with sn 2182 |
| LI-7550 AIU-0614 | 2013-08-21 | Lab none | Installed | West Pond Interface LI-7550 | Installed on the West Pond tower to replace sn 0666 for clean up. This box was placed on the top level of the scaffolding to hopefully avoid the ants. |
| LI-7550 AIU-0666 | 2013-08-21 | West Pond Interface LI-7550 | Removed | Lab none | Removed from the West Pond tower. This box has been suffer an ant infestation for many weeks. It was removed to be de-ant-ified, cleaned up and tested in the lab. |
| LI-7500A 1594 | 2013-08-21 | Lab none | Installed | Sherman Island Gas Analyzer CO2/H2O | Installed on the Sherman tower to replace sn 0035 for calibration. |
| LI-7500A 0035 | 2013-08-21 | Sherman Island Gas Analyzer CO2/H2O | Removed | Lab none | Swapped of the Sherman tower for calibration. Replaced by sn 1594 |
| CR10X 36771 | 2013-08-21 | Sherman Island | Removed | Lab none | Removed from a box at Sherman. This data logger used to collect the fast radiation from the diffuse PAR sensor. The power connector is still being used to patch power into the LED sensor. |
| LI-7700 TG1-0224 | 2013-08-21 | Mayberry Gas Analyzer CH4 | Calibration | Mayberry Gas Analyzer CH4 | Calibration Location: Mayberry Last calibration: 2013-02-21 RSSI=82%, Optical RH=8% Ambient P=101.0kPa, Tair=24.2C Zero Air at 1700psi, CH4 in air 4.995 at 1300 CH4 Zero Offset: 0.000ppm CH4 Span Offset: -0.026ppm Notes: It was windy but seemed to have no effect. The concentration of the secondary ch4 standard has been reevaluated since last cal. Last time 4.982, now 4.995 |
| LI-7700 TG1-0223 | 2013-08-21 | West Pond Gas Analyzer CH4 | Calibration | West Pond Gas Analyzer CH4 | Calibration Location: West Pond Last calibration: 2013-02-19 RSSI=78%, Optical RH=3% Ambient P=101.1kPa, Tair=21.8C Zero Air at 1700psi, CH4 in air 4.995 at 1300 CH4 Zero Offset: 0.01ppm CH4 Span Offset: 0.013ppm Notes: |
| LI-7700 TG1-0211 | 2013-08-21 | Twitchell Rice Gas Analyzer CH4 | Calibration | Twitchell Rice Gas Analyzer CH4 | Calibration Location: Twitchell Last calibration: 2013-02-21 RSSI=64%, Optical RH=13% Ambient P=101.2kPa, Tair=18.3C Zero Air at 1750psi, CH4 in air 4.995 at 1300 CH4 Zero Offset: 0.01ppm CH4 Span Offset: -0.025ppm Notes: It was windy but seemed to have no effect. The concentration of the secondary ch4 standard has been reevaluated since last cal. Last time 4.982, now 4.995 |
| LI-7500A 0065 | 2013-04-26 | West Pond Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the West Pond tower for calibration. Replaced by sn2176 |
| LI-7500A 75H-2176 | 2013-04-26 | Lab none | Installed | West Pond Gas Analyzer CO2/H2O | Installed on the West Pond tower to replace sn0065 for calibration |
| LI-7500A 75H-2180 | 2013-05-09 | Twitchell Rice Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Twitchell Rice tower for calibration. Replaced by sn0065 |
| LI-7500A 0065 | 2013-05-09 | Lab none | Installed | Twitchell Rice Gas Analyzer CO2/H2O | Installed on the Twitchell Rice tower to replace sn2180 for calibration. |
| LI-7500A 0042 | 2013-08-13 | Vaira Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Vaira tower for calibration. Replaced by sn0418 |
| LI-7500A 0418 | 2013-08-13 | Lab none | Installed | Vaira Gas Analyzer CO2/H2O | Installed on the Vaira tower to replace sn0042 for calibration |
| LI-6400 PSC-0785 | 2013-08-16 | Lab none | Notes | Lab none | Current firmware is OPEN v5.2.3. Upgrade to new firmware v6.2 is possible. New digital board is also available with Ethernet and CF interfaces see Licor part 6400-926 XT Upgrade Kit. Cost at this time is 50.00 |
| LI-7500A 0418 | 2013-08-05 | Lab none | Maintenance | Lab none | The cable from the box to the head got caught in the elevator door and was sheared off. I replace the whole cable assembly with the one from the old sn0065 box that is no longer in use. |
| LI-7500A 0418 | 2013-07-28 | Tonzi-Tower | Removed | Lab none | Removed from the Floor tower for calibration. Replaced by sn0073 |
| LI-7500A 1594 | 2013-07-28 | Tonzi-Floor | Removed | Lab none | Removed from the Tonzi Floor tower for calibration. Replaced by sn0041. |
| LI-7500A 0041 | 2013-07-28 | Lab none | Installed | Tonzi-Floor | Installed on the Tonzi Floor tower to replace sn1594 for calibration. |
| LI-7500A 75H-2150 | 2013-07-10 | Lab none | Installed | Mayberry Gas Analyzer CO2/H2O | Installed on the Mayberry tower to replace sn2182 for calibration |
| LI-7500A 75H-2182 | 2013-07-10 | Mayberry Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the tower for calibration. Replaced by sn2150 |
| LI-7500A 0418 | 2013-08-12 | Lab none | Calibration | Lab none | Last calibration: 2013-04-18 AGC=49 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.58kPa, Tair=20.28C, Tdew=14.85C Zero air at 1600psi, God co2 421.22 at 1600 Tdewspan=15.20 CO2 zero 0.9017 -> 0.9014 Offset: -1.0ppm CO2 span 1.0104 -> 1.0027 Offset: 4.28ppm H2O zero 0.8497 -> 0.8522 Offset: 0.26ppm H2O span 0.9871 -> 0.9825 Offset: 0.09ppm Notes: This 7500 just had its cable (box to head) replaced with the one from the old sn0065 box. The head connector was a little tight. |
| LI-7500A 75H-2150 | 2013-07-09 | Lab none | Calibration | Lab none | Last calibration: 2012-10-29 AGC=94.6 SDM=2 DAC1=na DAC2=na Ambient P=100.33kPa, Tair=23.79C, Tdew=12.73C Zero Air at 1700psi, God co2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.9024 -> 0.9009 Offset: -6.67ppm CO2 span 1.0155 -> 1.0016 Offset: 7.58ppm H2O zero 0.8639 -> 0.8636 Offset: 0.5ppm H2O span 1.0153 -> 1.0091 Offset: 0.13ppm Notes: Error message said - could not save calibration - on all zero and spans, but all seemed well. |
| LI-7500A 0073 | 2013-07-28 | Lab none | Installed | Tonzi-Tower | Installed on the Tonzi Tower to replace sn0418 for calibration. |
| GMP221 H1310020 | 2013-07-23 | Lab none | Tested | Disposed | I (Sara Knox) tested the probe in the lab to try to figure out what was wrong with it. It still maxed out at 5000 mV and the lights on the circuit board were flashing red and green. I took it out of the teflon tubing to inspect the probe for water damage - sure enough it was all corroded. I think its dead Jim. |
| GMP221 H1310020 | 2013-07-16 | Mayberry CO2 Probe A | Removed | Lab none | Removed open water CO2 probe since it was railed at 5000 mV. |
| LI-7500A 0073 | 2013-07-09 | Lab none | Calibration | Lab none | Last calibration: 2013-01-29 AGC=59 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.6kPa, Tair=22.18C, Tdew=12.22C Zero Air at 1650psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.9581 -> 0.9576 Offset: -1.50ppm CO2 span 1.0028 -> 1.0039 Offset: -0.47ppm H2O zero 0.7332 -> 0.7323 Offset: -6.0ppm H2O span 1.0186 -> 1.0259 Offset: -0.17ppm Notes: |
| LI-7500A 0041 | 2013-07-09 | Lab none | Calibration | Lab none | Last calibration: 2013-01-29 AGC=52 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.55kPa, Tair=21.92C, Tdew=11.81C Zero Air at 1650psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 1.0012 -> 1.0010 Offset: -0.55ppm CO2 span 1.008 -> 1.0086 Offset: -0.32ppm H2O zero 0.822 -> 0.8217 Offset: -1.5ppm H2O span 0.998 -> 1.0000 Offset: -0.04ppm Notes: |
| CNR1 020476 | 2013-06-27 | Twitchell Alfalfa | Removed | Lab none | Pulled the CNR1 off the Twitchell Alfalfa tower. Was being tested alongside the NR01 at the site. Now in the lab. |
| FMA RMT-200 08-0114 | 2013-06-20 | Lab none | Maintenance | Lab none | This analyzer refused to boot in the field and was swapped out by Cove. In the lab it continued to hang in booting. After trying a few things (pressing f2, etc), pressing esc at the "System Bios Configuration" screen allowed me to choose between two versions of the OS:
Fedora Core [version #] legacy.nptlcustom Fedora Core [version #] legacy.nptl Selecting the non-custom one booted to a command prompt where I could log in as root/3456789. However the screen kept flickering out giving me about 1 second to type then going black for about 5 seconds an not taking input. The df command should that the disk was 100% used. I navigated to /home/lgr/data and deleted some files from 2009 and then I rebooted. On reboot the LGR ran normally. I then entered the service area in the setup window with the ICOService password. From the service area I deleted all files from 2008, 2009, 2010, 2011, and 2012. Afterwards the disk usage was 23% used. Should be good for a few more years. |
| FMA RMT-200 05-0010 | 2013-06-18 | Lab none | Installed | Sherman Island | Installed at Sherman by Cove to replace sn 08-0114 that was refusing to boot. |
| FMA RMT-200 08-0114 | 2013-06-18 | Sherman Island | Removed | Lab none | Removed from Sherman Island by Cove. The external pump was off and the LGR refused to boot. It was replaced by sn 05-0010 |
| CNR1 020476 | 2013-06-18 | Lab none | Installed | Twitchell Alfalfa | Installed on the radiation post at the Twitchell Alfalfa for a cross comparison with the Hukseflux NR01 sn 1570 |
| CNR1 020476 | 2013-06-13 | Twitchell Alfalfa | Removed | Lab none | Removed from the radiation post at the Twitchell Alfalfa field due to bad readings on all channels. Later determined that the SWin channel was accidentally put into the second COM channel on the multiplexor. |
| 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. |