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| Ser No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| CNR1 990181 | 2017-05-25 | Bouldin Corn Net Radiometer 4-way | Removed | Lab none | Removed from BC tower because comparison is complete |
| LI-7550 AIU-0666 | 2018-03-09 | Lab none | Maintenance | Lab none | Cleaned out the box of bug detritus and replaced the gasket on the front lid. This box is missing the pressure port (the hole is covered by electrical tape) and the reset button is missing, so this box should stay in the lab for now for calibration purposes. |
| GP-001ex GP2013ex02 | 2018-03-07 | Twitchell Alfalfa | Removed | Lab none | Removed from the -16cm location at Twitchell Alfalfa because the readings have been funky for a while. Probably will be replaced at a later date. |
| GP-001 GP20140026 | 2018-03-07 | Twitchell Alfalfa | Removed | Lab none | Removed from the -8cm location at Twitchell Alfalfa because the readings have been funky for a while. Probably will be replaced at a later date. |
| GP-001 GP20140084 | 2018-03-07 | Twitchell Alfalfa | Removed | Lab none | Removed from the -2cm location at Twitchell Alfalfa because the readings have been funky for a while. Probably will be replaced at a later date. |
| BB-Fab BB-TA | 2018-03-07 | Twitchell Alfalfa | Maintenance | Twitchell Alfalfa | The battery bank at TA was rewired from to pairs (24V) to four in parallel (12V). |
| LI-7500A 75H-2150 | 2018-03-05 | Lab none | Calibration | Lab none | Last calibration: 2018-02-20 AGC=97 SDM=0 DAC1=0 DAC2=0 Ambient P=101.2kPa, Tair=25.7C, Tdew=1.7C Zero Air at 100psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.902 -> .9023 Offset: 1.32ppm CO2 span 1.007 -> 1.0093 Offset: -1.21ppm H2O zero 0.866 -> .9655 Offset: -3.3ppm H2O span 1.009 -> 1.0096 Offset: -.01ppm Notes: |
| LI-7500A 75H-2176 | 2018-03-05 | Lab none | Calibration | Lab none | Last calibration: 2018-02-05 AGC=101.2 SDM=0 DAC1=0 DAC2=0 Ambient P=101.2kPa, Tair=23.3C, Tdew=4.2C Zero Air at 100psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.8674 -> .8679 Offset: 2.12ppm CO2 span 1.0032 -> 1.0057 Offset: -1.52ppm H2O zero 0.851 -> .8486 Offset: -15.8ppm H2O span 1.0142 -> .9112 Offset: 2.31ppm Notes: First calib in the lab since Licor factory repair/calib. The H2O zero and span have large offsets because the Licor factory H2O calibration station failed. Our dewpoint generator results matched with Patty's dewpoint generator. |
| PRB-K Type #8 000000574632 | 2017-12-14 | Tonzi | Removed | Lab none | Removed from the location inside the soil co2 profile fence. This probe has been giving bad readings for a while and its lowest pin is broken off. |
| Mark I A000591 | 2018-02-28 | Lab none | Installed | Bouldin Alfalfa Weather Station A | Installed on the top, south rail of the scaffolding, between the radiation boom and the precip bucket. I leveled the sensor, but it was not pointing N because I prioritized aiming the downward-facing sensors towards the alfalfa. I also set up the Arable’s auxillary solar panel between the Arable and the precip bucket. |
| LI-7500A 0042 | 2018-03-05 | Lab none | Calibration | Lab none | Last calibration: 2017-05-05 AGC=98 SDM=0 DAC1=0 DAC2=0 Ambient P=101.4kPa, Tair=25.5C, Tdew=2.0C Zero Air at 150psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.9847 -> .9485 Offset: 1.08ppm CO2 span 1.0244 -> 1.0124 Offset: -1.35ppm H2O zero 0.8434 -> .843 Offset: .7ppm H2O span 1.1404 -> 1.0225 Offset: -.11ppm Notes: |
| LI-7500A 75H-2182 | 2018-03-05 | Lab none | Calibration | Lab none | Last calibration: 2018-02-20 AGC=86.9 SDM=0 DAC1=0 DAC2=0 Ambient P=101.4kPa, Tair=25.1C, Tdew=1.2C Zero Air at 150psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.8844 -> .8844 Offset: -0.07ppm CO2 span 1.0215 -> 1.0217 Offset: -.11ppm H2O zero 0.8446 -> .8453 Offset: 3.8ppm H2O span 1.0038 -> 1.0169 Offset: -.26ppm Notes: H2O span set with our dewpoint generator, which agrees with Patty's brand-new dewpoint generator |
| LI-7500A 0041 | 2018-03-05 | Lab none | Calibration | Lab none | Last calibration: 2018-02-20 AGC=99 SDM=0 DAC1=0 DAC2=0 Ambient P=101.5kPa, Tair=23.4C, Tdew=10.6C Zero Air at 150psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.9971 -> .9972 Offset: .25ppm CO2 span 1.0195 -> 1.0196 Offset: -1.07ppm H2O zero 0.8187 -> .8194 Offset: 4.5ppm H2O span 1.0217 -> 1.0267 Offset: -.1ppm Notes: H2O span checked against our dewpoint generator and Patty's dewpoint generator |
| AM16/32B 26950 | 2018-02-28 | Lab none | Installed | Mayberry Multiplexer Met | This is a brand new mux. It was Installed on the Mayberry tower to replace the old one that seems to be causing spikes and drop out on the radiation channels. |
| AM16/32A 1236 | 2018-02-28 | Mayberry Multiplexer Met | Removed | Lab none | Removed from Mayberry due to spikes and drops on radiation channels. This is an old mux and may be wearing out. |
| CR1000 66251 | 2017-04-26 | Lab none | Installed | Bouldin Corn Data Logger Met | Installed on the Bouldin Corn Tower to collect the met data with the initial set up of the site. |
| SRS-Pi PRI 897103002 | 2017-04-26 | Lab none | Installed | Bouldin Corn Narrow Band PRI Reflected | Installed on the Bouldin Corn Tower with the initial set up of the site. This sensor is in the reflected position using SDI-12 address F |
| HMP45AC U3030046 | 2018-03-05 | Lab none | Maintenance | Lab none | All three o-rings were replaced. Should be good to go. |
| HFP01 10809 | 2018-02-27 | Lab none | Repair | Lab none | Re-stripped cable so the correct ground wire was showing. The brown wire had been used as the ground, but that is not connected to anything. I fixed the cable so the three exposed wires are white (sig +), green (sig -) and bare (ground). |
| HFP01SC 00245 | 2018-02-27 | Lab none | Repair | Lab none | I soldered on a cable and reinforced the cable-sensor connection with silicone. This sensor tested sufficiently against sn 00244 and sn 10809. |
| HFP01SC 00244 | 2018-02-27 | Lab none | Repair | Lab none | I soldered on a cable and reinforced the cable-sensor connection with silicone. This sensor tested sufficiently against sn 00245 and sn 10809. |
| LI-820 CGA-556 | 2018-02-21 | Lab none | Installed | Tonzi | Installed in the old CO2 profile system on the Tower for comparison of the new GMP343 profile. |
| LI-7500A 0041 | 2018-02-20 | Lab none | Calibration | Lab none | Last calibration: 2017-09-11 AGC=98.4 SDM=0 DAC1=0 DAC2=0 Ambient P=101.1kPa, Tair=23.8C, Tdew=-2.4C Zero Air at 250psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.9969 -> .9971 Offset: .92ppm CO2 span 1.0155 -> 1.0195 Offset: -1.93ppm H2O zero 0.82 -> .8187 Offset: -7.5ppm H2O span 1.0217 -> 1.0217 Offset: 0ppm Notes: I didn't do a H2O span because the sensor's dewpoint measurement was hovering around 2C, and then dropping towards 0C over 30 minutes. There may be a problem with the dewpoint generator. |
| LI-7500A 75H-2182 | 2018-02-20 | Lab none | Calibration | Lab none | Last calibration: 2017-08-16 AGC=87 SDM=0 DAC1=0 DAC2=0 Ambient P=101.1kPa, Tair=23.3C, Tdew=-.8C Zero Air at 250psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.8832 -> .8844 Offset: 5.24ppm CO2 span 1.0123 -> 1.0215 Offset: -4.81ppm H2O zero 0.8436 -> .8446 Offset: 6.7ppm H2O span 1.0038 -> 1.0038 Offset: 0ppm Notes: I didn't do a new H2O span because the dewpoint measurement was hovering around 2C, when the dewpoint generator was set to 16.00C. There might be an issue with the dewpoint generator. |
| LI-7500A 75H-2150 | 2018-02-20 | Lab none | Calibration | Lab none | Last calibration: 2017-10-11 AGC=96.9 SDM=0 DAC1=0 DAC2=0 Ambient P=101.2kPa, Tair=24.4C, Tdew=0.15C Zero Air at 250psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.9018 -> .902 Offset: .58ppm CO2 span 1.007 -> 1.007 Offset: .83ppm H2O zero 0.8649 -> .866 Offset: 7.1ppm H2O span 1.009 -> 1.009 Offset: 0ppm Notes: I didn't span the H2O because the sensor's dewpoint measurement decreased from 10 to 4.3 after 50 minutes. It didn't make sense for the H2O span to change that much. There might be an issue with the dewpoint generator. |
| LI-7500A 75H-2176 | 2018-02-05 | Lab none | Calibration | Lab none | Last calibration: 2017-11-09 AGC=0 SDM=0 DAC1=0 DAC2=0 Ambient P=0kPa, Tair=0C, Tdew=0C Licor Factory at 0psi, Licor Factory 750 at 0 Tdewspan=12 CO2 zero 0.869 -> .8674 Offset: 0ppm CO2 span 1.0225 -> 1.0032 Offset: 0ppm H2O zero 0.857 -> .8510 Offset: 0ppm H2O span 1.0047 -> 1.0142 Offset: 0ppm Notes: Zero/Span set on 06 Feb 2018 at Li-cor Factory. CX=40242.3, WX=40527.3 |
| LI-7500A 75H-2176 | 2018-02-05 | Factory | Calibration | Factory | Sensor calibrated at the Li-cor factory. CO2 Calibration Values A= 1.58409E2 B= -1.53312E4 C= 6.48285E7 D= -2.17327E10 E= 2.80839E12 XS= 0.0004 Z= -1.4E-3 SD1= -0.0085 SD2= -0.0892 SD3= 2.0680 H2O Calibration Values A= 5.83891E3 B= 4.03548E6 C= -9.20453E6 XS= -0.0013 Z= 2.1E-2 SD1= 0.0484 SD2= 1.3610 SD3= 2.3810 Signal Strength B= 2.158 C= 4.122 |
| LI-7500A 75H-2176 | 2018-02-20 | Factory | Returned | Lab none | Sensor received from Licor: "Inspected the unit and found the chopper motor defective and the head bottom corroded. Replaced defective parts, subjected the unit to environmental tests and calibrated." It was sent with a new calibration certificate (05 Feb 2018). |
| PTB110 H0160093 | 2018-02-15 | Lab none | Tested | Lab none | The sensor tested successfully with a sample CR1000 program sent from Campbell. The sensor works as a single-ended measurement, but not as a differential measurement (I'm not sure why). I had only tested as a differential measurement previously. |
| CTD-10 1260403156 | 2018-02-06 | Lab none | Maintenance | Lab none | Extended the cable and swapped data and power colors so that white is wired to the data port and red is wired to the 12V port. Decagon colors --> Extension colors --> datalogger Red --> White --> Data White --> Red --> 12V Black --> Black --> G Bare --> Green --> AG |
| CR10X 48042 | 2018-02-13 | Lab none | Installed | Twitchell Alfalfa Data Logger Diffuse PAR | Installed in the met logger box to run the diffuse PAR RSB, fixing problem with the ppt not being recorded properly in the fast cycle on the CR1000. |
| 2300-000 2300565 | 2017-03-29 | Lab none | Installed | Mayberry Fluorometer | Installed at MB on the water sensor boom. It is at ?? depth below the water surface, about level with the top miniDOT DO and eosense CO2 sensors. |
| CR6 2113 | 2018-02-07 | Lab none | Installed | Tonzi | Installed on Tonzi Tower for the Vaisala GMP CO2 profile. |
| CTD-10 1260403156 | 2018-02-07 | Lab none | Installed | Tonzi | Installed in the well near the Floor tower. The sensor is 11.1m below the top of the white pipe. It is connected to the CR200. |
| GMP343 N2220008 | 2018-02-07 | Lab none | Installed | Tonzi | Installed at the top location on the Tonzi Tower in the new Vaisala co2 Profile. |
| AM16/32 5609 | 2012-02-16 | Lab none | Installed | Vaira | Installed at Vaira with the new soil CO2 system. The system is not running yet because we need longer cables for the Vaisala co2 probes. |
| CR10X 20139 | 2012-02-16 | Lab none | Installed | Vaira | Installed at Vaira with the new soil CO2 system. The system is not running yet because we need longer cables for the Vaisala co2 probes. |
| HFP01 10822 | 2018-01-31 | Lab none | Installed | East End Heat Flux Plate B | Installed at EE to right of rad boom in vegetation. |
| HFP01 001604 | 2018-01-31 | Lab none | Installed | East End Heat Flux Plate A | Installed at EE in open patch left of rad boom. |
| HFP01SC 00244 | 2018-01-31 | East End Heat Flux Plate A | Removed | Lab none | Removed from EE because it started changing in steps around the end of October. Needs to be inspected and repaired. There are several nicks in the cable and the cable-head connection is loose. |
| HMP60 G4540021 | 2018-01-31 | Twitchell Alfalfa 0 | Removed | Lab none | This golden HMP60 sensor was brought back from TA to the lab at the conclusion of our HMP comparison. |
| LI-7550 AIU-1570 | 2018-01-31 | Lab none | Installed | West Pond Interface LI-7550 | Installed at WP to replace AIU-0666 that was removed to fix door gasket, pressure port, circuit board cover. |
| LI-7550 AIU-0666 | 2018-01-31 | West Pond Interface LI-7550 | Removed | Lab none | Brought back to the lab for some TLC. It was replaced by AIU-1570. |
| CR6 2113 | 2018-02-01 | Lab none | Upgrade | Lab none | Upgraded OS from CR6.Std.03 to CR6.Std.07.02. The older OS has a known issue where the CR6 is unresponsive until the internal lithium battery is removed and reinstalled. After upgrading the OS, I used the "Network Services" tab to enable FTP with the username tower and the usual password. |
| CR6 2115 | 2018-02-01 | Lab none | Upgrade | Lab none | Upgraded OS from CR6.Std.03 to CR6.Std.07.02. The older OS has a known issue where the CR6 is unresponsive until the internal lithium battery is removed and reinstalled. This new O.S. CR6.Std.07.02 requires updating your computer USB drivers using Device Config Utility 2.16 (or newer). I updated Device Config Utility on my computer from version 2.10 to 2.16. In the "Send OS" tab in Device Config Utility, the first step provides a link to update USB drivers. After upgrading the OS, I used the "Network Services" tab to enable FTP with the username tower and the usual password. |
| CR6 2114 | 2018-01-31 | Factory | Returned | Lab none | Returned from Campbell where it was evaluated, updated and returned free of charge. |
| CR6 2114 | 2018-01-22 | Factory | Maintenance | Factory | Campbell says: Tested unit on bench, unit functioned upon receipt. No problems found, but unit is running OS Rev3. This Rev is suspected to cause random freezes that require disconnection of the lithium battery. The issue has been resolved in the latest CR6 OSes. Updated the logger to latest Rev 7.02. Performed calibration, tested unit in the environmental chamber, and performed final bench test. Replaced the internal lithium battery and included a new USB cable. |
| HMP45AC U3030046 | 2018-01-30 | Lab none | Notes | Lab none | This HMP45 needs 3 o-rings replaced before field deployment. |
| PS-30M 04350908 | 2018-01-30 | Lab none | Loaned | Loaned | Cleaned up and loaned to Patty for her Eden Landing tower. |
| LI-7550 AIU-1570 | 2018-01-29 | Lab none | Upgrade | Lab none | Downgraded from embedded Licor software v8.7.5 to 8.5.0. Version 8.7.5 was causing issues with header/data mismatch. I checked 7550 time and time zone and CO2 and CH4 logging config. |
| LI-7500A 0035 | 2018-01-16 | Lab none | Installed | Bouldin Corn Gas Analyzer CO2/H2O | Installed at BC to replace sn 75H-2176 (had PLL error) |
| LI-7550 AIU-0666 | 2018-01-16 | West Pond Interface LI-7550 | Upgrade | West Pond Interface LI-7550 | Downgraded embedded Licor software from v8.7.5 to 8.5.0 because 8.7.5 caused mismatch problems between data columns and headers |
| LI-7500A 75H-2180 | 2018-01-16 | Lab none | Installed | West Pond Gas Analyzer CO2/H2O | Installed at WP to replace sn 75H-2150. |
| LI-7500A 75H-2150 | 2018-01-16 | West Pond Gas Analyzer CO2/H2O | Removed | Lab none | Removed from WP and brought back to the lab for calibration. it was replaced by sn 75H-2180. |
| KD140SX-UFBS 11ZV0M0835 | 2018-01-23 | Lab none | Installed | Mayberry | Installed at Mayberry to supply extra winter power. |
| KD140SX-UFBS 11ZV0M0856 | 2018-01-23 | Lab none | Installed | Mayberry | Installed at Mayberry to supply extra winter power. |
| LI-7500A 75H-2176 | 2018-01-19 | Lab none | Repair | Factory | This 7500 head has a bad chopper (PLL error). It was sent to Licor on RMA 00205846 for repair and recalibration. |
| CR6 2114 | 2018-01-19 | Lab none | Shipped | Factory | This CR6 became unresponsive for no know reason - only a green light on the RJ45 jack. It was sent to Campbell on RMA 27680 for evaluation and repair. |
| CR6 2114 | 2018-01-15 | Lab none | Damaged | Lab none | I tried to install this CR6 at Tonzi for the new co2 profile on the Tower but it was non-functional. It tested fine in the lab this morning, but was a brick in the field. The green light on the RJ45 jack comes on but no other indication that it has power. |
| eosFD 20160003 | 2018-01-15 | Tonzi | Removed | Lab none | Removed from the soil co2 profile near Tree 1 for return to Eosense. |
| HMP60 L2310711 | 2018-01-15 | Lab none | Installed | Tonzi | Insalled by a box just below the 3rd lowest location of the tower co2 profile. This sensor will be used to give real time air temperature to the GMP343s. |
| PTB101B B0310006 | 2018-01-15 | Lab none | Installed | Tonzi | Installed in a box just below the 3rd lowest location of the tower co2 profile. This sensor will be used to give real time pressure to the GMP343s. |
| GMP343 N2210009 | 2018-01-15 | Lab none | Installed | Tonzi | Installed at the 3rd lowest location in the tower co2 profile - not running yet due to data logger failure. |
| GMP343 N2210010 | 2018-01-15 | Lab none | Installed | Tonzi | Installed at the 2nd lowest location in the tower co2 profile - not running yet due to data logger failure. |
| GMP343 N2220007 | 2018-01-15 | Lab none | Installed | Tonzi | Installed at the lowest location in the tower co2 profile - not running yet due to data logger failure. |
| eosFD 20160004 | 2017-10-25 | Lab none | Installed | Vaira Forced Diffusion North | Installed near the North soil co2 profile at Vaira. This one wouldn't start because it got too hot in the sun last time. |
| eosFD 20160006 | 2018-01-15 | Vaira Forced Diffusion East | Removed | Lab none | Removed from near the East soil co2 profile for return to Eosense |
| eosFD 20160005 | 2018-01-15 | Vaira Forced Diffusion West | Removed | Lab none | Removed from near the West soil co2 profile for return to Eosense |
| eosFD 20160004 | 2018-01-15 | Vaira Forced Diffusion North | Removed | Lab none | Removed from near the North soil co2 profile for return to Eosense |
| LI-7500A 0035 | 2018-01-12 | Lab none | Calibration | Lab none | Last calibration: 2017-09-05 AGC=98.9 SDM=0 DAC1=0 DAC2=0 Ambient P=101.5kPa, Tair=20.5C, Tdew=10.2C Zero Air at 250psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.9373 -> .9378 Offset: 1.97ppm CO2 span 1.0084 -> 1.0288 Offset: -10.27ppm H2O zero 0.8976 -> .8978 Offset: 1.3ppm H2O span 1.0141 -> 1.0296 Offset: -.31ppm Notes: |
| HMP60 G4540021 | 2018-01-11 | Lab none | Installed | Twitchell Alfalfa 0 | Installed on Twitchell Alfalfa for another comparison. Last time the TA HMP60 had spiders in it and a slow fan. |
| AM16/32A 1236 | 2018-01-11 | Lab none | Installed | Mayberry Multiplexer Met | Installed on the Mayberry CR1000 met data logger to replace the existing AM16/32. There have been spikes in the data from the sensors on the existing multiplexer. |
| AM16/32A 1430 | 2018-01-11 | Mayberry Multiplexer Met | Removed | Lab none | Removed from the Mayberry Tower where is was on the CR1000 met data logger. It was removed due to spikes in mostly the radiometer channels. |
| BB-Fab BB-MB | 2018-01-11 | Mayberry | Upgrade | Mayberry | Six flooded Super Start batteries with 07/2010 stickers were removed due to nightly low voltage power losses. These were replaced by five Outback AMG batteries from 11/2015 last used for the Temporary Towers at East End. |
| LI-7700 TG1-0224 | 2018-01-12 | Lab none | Adjusted | Lab none | This 7700 has an unlocked reference signal (the reference and signal waveforms were not synced). I talked with James at Licor and changed the Laser Start Temp from 29.8 to 25.5 in the factory settings (Help > About > Factory). To find the new start temperature, I did a Wide Scan (Help > About > Wide Scan > Start), which goes through temperature 0-50 deg C. There is a graph and table of results, where you can pinpoint the reference lock temperature. During the Wide Scan, some of the factory settings changed, so I reset those (changed Delta 1 from 100 back to 41). Licor has the original factory settings on file. |
| PS-30M 04350908 | 2018-01-11 | Mayberry | Removed | Lab none | Removed from the Mayberry solar system. This controller was full of dead ants and had some discoloring on the circuit board. |
| AM16-32A 1238 | 2018-01-10 | Lab none | Tested | Lab none | This mux works in 4x16 mode only. |
| LI-7500A 75H-2180 | 2018-01-10 | Lab none | Calibration | Lab none | Last calibration: 2017-08-16 AGC=97.8 SDM=0 DAC1=0 DAC2=0 Ambient P=101.1kPa, Tair=17.4C, Tdew=10.6C Zero Air at 250psi, LBL Air 408.97 at 1700 Tdewspan=16.00 CO2 zero 0.9129 -> 0.9147 Offset: 7.92ppm CO2 span 1.0145 -> 1.0362 Offset: -10.74ppm H2O zero 0.8871 -> 0.8864 Offset: -4.2ppm H2O span 1.0164 -> 1.0168 Offset: -0.02ppm Notes: |
| LI-7700 TG1-0224 | 2018-01-10 | Lab none | Adjusted | Lab none | Checked the sensor in the lab, and the temperature reading was fine. However, there was an error "Reference signal is UNLOCKED," and CH4 was reading ~0.05 umol/mol. The diagnostics tab showed that the signal and reference waveforms were not synced. I changed the temperature control to manual, adjusted the laser temperature from 30.6 to 26.0 so that the waveforms were synced, and changed the temperature control back to automatic. |
| LI-7500A 75H-2176 | 2018-01-04 | Bouldin Corn Gas Analyzer CO2/H2O | Removed | Lab none | Removed from tower because of PLL error (did not hear sensor fan spinning) |
| LI-7500A 75H-2667 | 2017-12-19 | Lab none | Installed | Bouldin Alfalfa Gas Analyzer CO2/H2O | Installed on Bouldin Alfalfa to replace sn 0042 for calibration |
| LI-7500A 0042 | 2017-12-19 | Bouldin Alfalfa Gas Analyzer CO2/H2O | Removed | Lab Gas Analyzer CO2/H2O | Removed from Bouldin Alfalfa for calibration. Replaced by sn 75H-2667. |
| HMP45AC T1250012 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP45AC U3030046 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP60 L2310711 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP45AC T2130005 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP45AC U3030041 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP45AC W0730036 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP60 L1740420 | 2017-12-18 | Twitchell Alfalfa 0 | Moved | Twitchell Alfalfa 0 | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| HMP60 G4540021 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa 0 | Installed at Twitchell Alfalfa for an inter-comparison of HMPs |
| LI-7550 AIU-1557 | 2017-12-18 | Twitchell Alfalfa Interface LI-7550 | Upgrade | Twitchell Alfalfa Interface LI-7550 | The software on this 7550 box was down graded from v8.7.5 to v8.5.0 |
| LI-7500A 0035 | 2017-12-18 | Twitchell Alfalfa Gas Analyzer CO2/H2O | Removed | Lab none | Removed from Twitchell Alfalfa for calibration. Replaced by sn 75H-2514 |
| LI-7500A 75H-2514 | 2017-12-18 | Lab none | Installed | Twitchell Alfalfa Gas Analyzer CO2/H2O | Installed at Twitchell Alfalfa to replace sn 0035 for calibration |
| HMP60 L1740420 | 2017-12-19 | Twitchell Alfalfa RH & Temp | Moved | Twitchell Alfalfa RH & Temp | Moved back up to its usual position near the 7500 from the HMP inter-comparison height. |
| CR23X 2303 | 2017-12-19 | Twitchell Alfalfa | Removed | Lab none | Removed from the HMP inter-comparison at Twitchell Alfalfa |
| HMP45AC T1250012 | 2017-12-19 | Twitchell Alfalfa | Removed | Lab none | Removed from the HMP inter-comparison at Twitchell Alfalfa |
| HMP45AC U3030046 | 2017-12-19 | Twitchell Alfalfa | Removed | Lab none | Removed from the HMP inter-comparison at Twitchell Alfalfa |
| HMP60 L2310711 | 2017-12-19 | Twitchell Alfalfa | Removed | Lab none | Removed from the HMP inter-comparison at Twitchell Alfalfa |
| HMP45A U2120013 | 2017-12-19 | Twitchell Alfalfa 0 | Removed | Mayberry RH & Temp | Removed from the HMP inter-comparison at Twitchell Alfalfa and returned to Mayberry |
| HMP60 L2310736 | 2017-12-19 | Twitchell Alfalfa 0 | Removed | Sherman Wetland RH & Temp | Removed from the HMP inter-comparison at Twitchell Alfalfa and returned to Sherman Wetland |