Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
LI-7500A 75H-2150 2019-08-01 Lab none Calibration Lab none Last calibration: 2019-04-15
AGC=97.7 SDM= DAC1= DAC2=
Ambient P=100.7kPa, Tair=23.4C, Tdew=13.3C
Zero Air at 975psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.9014 -> .9022 Offset: 3.41ppm
CO2 span 1.003 -> 1.0086 Offset: -2.05ppm
H2O zero 0.8671 -> .8673 Offset: 1.2ppm
H2O span 1.0077 -> 10.114 Offset: -.08ppm
Notes: When SS was 97.7, I reset it to 100. I uploaded the the calibration file from 2018-10-24 and copied in the manual coefficients for CO2 span, CO2 zero, H2O span, and H2O zero from the database's record of the most recent calibration on 2019-04-15.
LI-7500A 75H-2669 2019-08-01 Lab none Calibration Lab none Last calibration: 2019-04-15
AGC=102.6 SDM= DAC1= DAC2=
Ambient P=100.7kPa, Tair=22.7C, Tdew=14.1C
Zero Air at 975psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.9186 -> .9178 Offset: -3.12ppm
CO2 span 1.0134 -> 1.0125 Offset: .53ppm
H2O zero 0.8991 -> .9019 Offset: 17.8ppm
H2O span 1.0017 -> 1.015 Offset: -.3ppm
Notes: When SS was 102.6, I reset it to 100. I uploaded the the calibration file from 2018-10-24 and copied in the manual coefficients for CO2 span, CO2 zero, H2O span, and H2O zero from the database's record of the most recent calibration on 2019-04-15.
LI-7500A 0035 2019-08-01 Lab none Calibration Lab none Last calibration: 2019-04-26
AGC=99.2 SDM= DAC1= DAC2=
Ambient P=100.6kPa, Tair=24.0C, Tdew=13.8C
Zero Air at 975psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.9371 -> .9374 Offset: 1.23ppm
CO2 span 1.0189 -> 1.0207 Offset: -.96ppm
H2O zero 0.8989 -> .8984 Offset: -2.9ppm
H2O span 1.0186 -> 1.0323 Offset: -.29ppm
Notes: When the SS was 99.2, I reset it to 100. I uploaded the the calibration file from 2018-10-24 and copied in the manual coefficients for CO2 span, CO2 zero, H2O span, and H2O zero from the database's record of the most recent calibration on 2019-04-15.
LI-7500A 0041 2019-07-25 Lab none Installed Sherman Wetland Gas Analyzer CO2/H2O Installed at SW to replace sn 75H-2150, which was brought back to the lab for calibration.
LI-7500A 75H-2150 2019-07-25 Sherman Wetland Gas Analyzer CO2/H2O Removed Lab none Removed from SW and brought back to the lab for calibration. It was replaced by sn 0041.
LI-7500A 75H-2667 2019-07-25 Lab none Installed Sherman Barn Gas Analyzer CO2/H2O Installed at SB to replace sn 75H-2669, which was brought back to the lab for calibration.
LI-7500A 75H-2669 2019-07-25 Sherman Barn Gas Analyzer CO2/H2O Removed Lab none Removed from SB and brought back to the lab for calibration. it was replaced by sn 75H-2667.
LI-7500A 0042 2019-07-25 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed at MB to replace 75H-2182, which was brought back to the lab for calibration.
LI-7500A 75H-2182 2019-07-25 Mayberry Gas Analyzer CO2/H2O Removed Lab none Removed from MB and brought back to the lab for calibration. It was replaced by sn 0042.
PAR-LITE 010161 2019-07-25 Lab none Installed Mayberry PAR Sensor Reflected Water Installed at MB (PAR reflected water) to replace sn 040412, which was brought back to the lab for testing.
PAR-LITE 040412 2019-07-25 Mayberry PAR Sensor Reflected Water Removed Lab none Removed from MB (PAR reflected water) and brought back to the lab for testing (spiky). It was replaced by sn 010161.
NR-LITE 990351 2019-07-25 Lab none Installed Mayberry Net Radiometer Water Installed at MB over the water to replace sn 990350, which was brought back to the lab for repair.
NR-LITE 990350 2019-07-25 Mayberry Net Radiometer Water Removed Lab none Removed from MB (Rnet_water) and brought back to the lab for repair (broken cable). It was replaced by sn 990351.
LI-7500A 75H-2176 2019-07-25 Lab none Installed East End Gas Analyzer CO2/H2O Installed at EE to replace sn 0035, which was brought back to the lab for calibration.
LI-7500A 0035 2019-07-25 East End Gas Analyzer CO2/H2O Removed Lab none Removed from EE and brought back to the lab for calibration. it was replaced by 75H-2176.
PAR-LITE 10162 2019-07-25 Lab none Installed East End PAR Sensor Incoming Installed at EE to replace sn 110340, which was removed for spiky behavior.
PQS 1 110340 2019-07-25 East End PAR Sensor Incoming Removed Lab none Removed from EE because it had been spiky in the last month. It was replaced sn 10162.
LI-7500A 75H-2667 2019-07-24 Lab none Calibration Lab none Last calibration: 2019-02-11
AGC=104.1 SDM= DAC1= DAC2=
Ambient P=100.4kPa, Tair=26.7C, Tdew=11.7C
Zero Air at 1000psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.9425 -> .9413 Offset: -4.47ppm
CO2 span 1.0143 -> 1.0158 Offset: -.77ppm
H2O zero 0.8349 -> .8363 Offset: 8.7ppm
H2O span 1.0222 -> 1.0222 Offset: -.02ppm
Notes: When the SS was 104.1, I reset it to 100.0
LI-7500A 0042 2019-07-24 Lab none Calibration Lab none Last calibration: 2019-01-02
AGC=97.7 SDM= DAC1= DAC2=
Ambient P=100.4kPa, Tair=27.3C, Tdew=14.4C
Zero Air at 1000psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.9489 -> .9481 Offset: -3.43ppm
CO2 span 1.0187 -> 1.0049 Offset: 7.19ppm
H2O zero 0.8434 -> .8433 Offset: -1.0ppm
H2O span 1.0334 -> 1.0179 Offset: .35ppm
Notes: When SS was 97.7, I reset it to 100.0
LI-7500A 0041 2019-07-24 Lab none Calibration Lab none Last calibration: 2019-01-02
AGC=97.8 SDM= DAC1= DAC2=
Ambient P=100.5kPa, Tair=27.2C, Tdew=12.7C
Zero Air at 1000psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.9953 -> .9970 Offset: 5.75ppm
CO2 span 1.0194 -> 1.0163 Offset: -1.89ppm
H2O zero 0.8248 -> .8201 Offset: -26.5ppm
H2O span 1.0312 -> 1.0243 Offset: .16ppm
Notes: When SS was 97.8, I reset it to 100.0. Larger H2O zero offset than I expected, but H2O span was ok. Last calibration, the H2O zero offset was a similar magnitude and positive.
LI-7500A 75H-2176 2019-07-24 Lab none Calibration Lab none Last calibration: 2019-01-02
AGC=102.0 SDM= DAC1= DAC2=
Ambient P=100.5kPa, Tair=26.1C, Tdew=14.5C
Zero Air at 1000psi, AMP CA4396 408.97 at 800 Tdewspan=20.00
CO2 zero 0.8676 -> .8672 Offset: -2.14ppm
CO2 span 1.0114 -> 1.0061 Offset: 2.7ppm
H2O zero 0.8525 -> .8521 Offset: -2.4ppm
H2O span 0.8206 -> .9182 Offset: .05ppm
Notes: When SS was 102.0, I reset it to 100.
GP-001 GP20150101 2019-07-10 East End CO2 probe Removed Lab none Removed from EE and brought back to the lab for further testing (it was maxing out, even when out of the water).
GP-001 GP20150101 2019-01-18 Lab none Installed East End CO2 probe Installed at EE to replace sn GP20140019, which was brought back to the lab for testing.
LI-7500 0976 2009-01-08 Lab none Installed Tonzi-Floor Installed on the Tonzi Floor to replace sn 0042 for calibration
LI-7500A 0042 2009-01-08 Tonzi-Floor Removed Lab none Removed from the Tonzi Floor for calibration. Replaced by sn 0976.
LI-7500A 0418 2009-01-08 Lab Gas Analyzer CO2/H2O Installed Tonzi-Floor Installed on the Tonzi Tower to replace sn 0065 for calibration
LI-7500A 0065 2009-01-08 Tonzi-Tower Gas Analyzer CO2/H2O Removed Lab Gas Analyzer CO2/H2O Removed from the Tonzi Tower for calibration. Replaced by sn 0418.
LI-7500A 0041 2009-01-08 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on the Vaira tower to replace sn 0073 for calibration
LI-7500A 0073 2009-01-08 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from the Vaira Tower for calibration. Replaced by sn 0041.
Mark I A001911 2019-07-02 Lab none Installed Sherman Wetland Weather Station Installed at the midpoint of the western railing. Should be remounted on the radiation boom.
Mark I A000251 2019-07-02 Lab none Installed Tonzi Installed at the top of the tower east of the southeast corner. Should be remounted on the radiation boom.
URM06 URM06-001 2019-06-20 Bouldin Alfalfa Range Finder Moved Bouldin Corn Range Finder Moved from BA to BC to look at corn height. It was installed on the BC radiation boom.
miniDOT 1220 2019-06-13 Lab none Tested Lab none Tested but we probably can't use this sensor any more. We put in new AA lithium batteries, and the miniDOT was able to power up, but the LED light continuously blinks 2x, "card error." We tried re-formatting the card, using another 2GB card previously used in a miniDOT (could have been a bad card), and then with a good SD card at EE. In all cases, the LED status light still indicated a "card error."
miniDOT 1220 2019-05-23 Mayberry DO Sensor E Removed Lab none Brought back to the lab for testing. The o-ring was warped and it was damp inside. There was some corrosion on the board and the batteries were dead.
PTB110 E1330045 2019-05-23 Mayberry Barrometer Removed Lab none Reading dropped down to 50, so removed and brought back to the lab for inspection.
miniDOT 1220 2018-11-28 Mayberry DO Sensor E Maintenance Mayberry DO Sensor E Swapped 2x AA lithium batteries
miniDOT 1221 2018-08-23 Mayberry DO Sensor D Maintenance Mayberry DO Sensor D Swapped 2x AA lithium batteries
2300-000 2300565 2019-06-04 Lab none Installed Mayberry Fluorometer Installed at MB after a thorough cleaning in the lab.
2300-000 2300565 2019-02-28 Lab none Installed Mayberry Fluorometer Reinstalled after a thorough cleaning and getting new brushes in the lab.
2300-000 2300565 2019-05-31 Mayberry Fluorometer Removed Lab none Removed from the tower for a thorough cleaning in the lab.
SI-131 7385 2019-05-30 Lab none Installed Tonzi Installed near the Floor solar panels looking at the grass to the north. Footprint of about 1.23m x 2.5m diameter
TS01 TS01-002 2019-05-30 Lab none Installed Tonzi Installed near an oak tree about 25m north of the Floor solar panels. Measuring trunk temperature from about 110cm distance.
SI-131 7638 2019-05-30 Lab none Installed Tonzi Installed near an oak tree about 25m north of the Floor solar panels. Measuring trunk temperature from about 40cm distance.
CR10X 47772 2019-05-30 Lab none Installed Tonzi Installed near an oak tree about 25m north of the Floor solar panels to support two IRTs
TS01 TS01-001 2019-05-30 Lab none Installed Tonzi Installed near the Floor solar panels looking at the grass to the north. Footprint of about 0.7m x 0.35m diameter
LI-7550 AIU-1866 2019-05-31 Factory Received Lab none Received back from Licor. They replaced the RF chip in the power supply.
HMP45AC T2130005 2019-05-22 Lab none Tested Lab none I removed the power cord and soldered on an extension cord. Tested in the lab with radiation shields and fans, and compared well with two HMP60s sn L1740398 (Campbell has OK'd this one) and sn G4540023. This sensor is probably ok, but maybe we can test it with a reference AirT/RH sensor from AMP.
CS451 70011234 2018-12-10 Lab none Tested Lab none Tested in both air and water in the lab and saw an offset of about +0.975 cm. See RT report "Pressure transducer comparison 12-2018."
CS451 70011229 2018-12-10 Lab none Tested Lab none Tested in both air and water in the lab, but saw diurnal fluctuations of only 0.1 cm, not the 5-6 cm we saw in the field. See RT report "Pressure transducer comparison 12-2018."
CR1000 47108 2019-05-28 Sherman Barn Data Logger Met Notes Sherman Barn Data Logger Met VX2 may be unreliable. NR01 PRT was drifting constantly until it was re-wired from VX2 to VX3, but that could also have been a wiring issue with another channel.
AM16/32B 11662 2019-05-28 Sherman Barn Multiplexer Met Notes Sherman Barn Multiplexer Met Channel 28 and 32 are probably bad (see field notes from SB 2019-04-11).
LI-7550 AIU-1866 2019-05-09 Lab none Shipped Factory Shipped back to Licor for them to inspect.
LI-7500A 75H-2514 2019-05-07 Lab none Installed Tonzi-Floor Gas Analyzer CO2/H2O Installed on the Floor tower to replace the one that was moved to Tonzi Tower last week.
LI-7550 AIU-0666 2019-05-07 Lab none Installed Tonzi-Floor Interface LI-7500 Installed on the Floor tower to replace the one that was moved to Tonzi Tower last week.
LI-7500A 0035 2019-05-02 Lab none Installed East End Gas Analyzer CO2/H2O Installed at EE to replace sn 75H-2667, which was brought back to the lab for calibration.
LI-7500A 75H-2667 2019-05-02 East End Gas Analyzer CO2/H2O Removed Lab none Removed from EE and brought back to the lab for calibration. it was replaced by sn 0035.
LI-7500A 0042 2019-04-30 Tonzi-Tower Gas Analyzer CO2/H2O Removed Lab none Removed from the Tower for calibration. Replaced by sn 1594. The Tower 7550 box died and was replaced by the Floor 7550 box. No reason to believe the Head was damaged by the box crash but might be worth checking.
LI-7500A 0041 2019-04-30 Tonzi-Floor Gas Analyzer CO2/H2O Removed Lab none Removed from Floor tower for calibration. Not replaced because the Floor 7550 box was moved to the Tower to replace the 7550 box there that died.
LI-7500A 1594 2019-04-30 Lab none Installed Tonzi-Tower Installed on the Tower to replace sn 0042 for calibration. Using Floor 7550 box because Tower 7550 box died
LI-7550 AIU-1869 2019-04-30 Tonzi-Floor Interface LI-7500 Moved Tonzi-Tower Gas Analyzer CO2/H2O Moved to the Tower to replace sn AIU-1866 which had some kind of power problem and failed.
LI-7550 AIU-1866 2019-04-30 Tonzi-Tower Interface LI-7550 Removed Lab Interface LI-7550 Removed from Tonzi Tower due to power issues. Power light was flickering with audible relay click when a head was attached. Seemed to boot without head. Might have caused 5A Tower load breaker to pop on 4-23. Brought in for testing - replaced with Floor box sn AIU-1869
LI-7500A 75H-2668 2019-04-30 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on the Vaira tower to replace sn 74H-2176 for calibration.
LI-7500A 75H-2176 2019-04-30 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from Vaira for calibration. Replaced by sn 75H-2668.
LI-7550 AIU-1866 2019-05-01 Lab none Tested Lab none Plugged it in to the 24V wall power and it was dead. Will e-mail Licor.
RF401 35754 2019-03-11 Lab none Installed Tonzi Installed in the OSU SP3 box to connect to the Tower computer.
RF401 34362 2019-03-11 Lab none Installed Tonzi Installed in the Tower computer box to connect the computer to the remote data loggers.
miniDOT 1219 2016-10-11 Mayberry DO Sensor E Moved Mayberry DO Sensor D Moved from middle position to upper position (top sensor could not be removed so it was moved to lower position; bottom/lower sensor was removed).
miniDOT 1220 2018-10-04 Mayberry DO Sensor E Notes Mayberry DO Sensor E Measured at -45 cm.
miniDOT 1220 2017-10-13 Lab none Installed Mayberry DO Sensor E After the barnacle was removed in the lab, reinstalled at MB on the floating boom, lower position.
miniDOT 1220 2017-08-16 Mayberry DO Sensor E Removed Lab none Removed from lower position (-62 cm) on floating boom and brought in to the lab for barnacle removal.
miniDOT 1221 2018-10-04 Mayberry DO Sensor D Notes Mayberry DO Sensor D Measured at -15 cm.
miniDOT 1221 2017-05-25 Mayberry DO Sensor D Moved Mayberry DO Sensor D Moved from static boom (upper position, -10 cm based on water level on 2017-05-10) to floating boom with sn 1219 (upper position, -17 cm).
miniDOT 1219 2017-05-25 Mayberry DO Sensor D Moved Mayberry DO Sensor D Moved from static boom (upper position, -10 cm based on water level on 2017-05-10) to floating boom with sn 1221 (upper position, -17 cm).
miniDOT 1220 2017-05-25 Mayberry DO Sensor D Moved Mayberry DO Sensor E Moved from static boom (upper position, -10 cm based on water level on 2017-05-10) to floating boom (lower position, -62 cm).
miniDOT 1219 2015-04-23 Mayberry DO Sensor E Moved Mayberry DO Sensor E Sensor was moved up 10 cm on fence post: from -65 cm (based on water level 2014-10-09) to -50 cm (based on water level on 2015-04-23).
miniDOT 1221 2015-04-23 Mayberry DO Sensor F Moved Mayberry DO Sensor F Sensor was moved up 15 cm on the fence post: from -109 cm (based on water level 2014-10-09) to -92 cm (based on water level on 2015-04-23).
miniDOT 1221 2017-05-10 Mayberry DO Sensor D Mayberry DO Sensor D sn 1221 moved slightly in the upper position from -8cm (based on water level on 2017-02-23) to -10cm (based on water level on 2017-05-10) with the other 2 miniDOTs.
miniDOT 1220 2017-05-10 Mayberry DO Sensor E Mayberry DO Sensor D sn 1220 moved from middle position (-38 cm based on water level on 2017-02-23) to upper position (-10cm based on water level on 2017-05-10) with the other 2 miniDOTs.
miniDOT 1219 2017-05-10 Mayberry DO Sensor F Moved Mayberry DO Sensor D sn 1219 moved from lower position (-68 cm based on water level on 2017-02-23) to upper position (-10cm based on water level on 2017-05-10). All 3 miniDOT sensors (sn 1219, sn 1220, sn 1221) are at this depth for now.
HMP45AC U3030046 2019-04-29 Lab none Tested Lab none Continued testing in lab and RH is consistently bad. Do not use.
LI-7500A 0042 2004-04-07 Lab none Calibration Lab none Calibrated in the lab after being recently returned from Licor. There is a change in the power wiring. Red/white is positive, green is negative. They also changed the delay to 240 ms.
LI-7500A 0035 2004-04-07 Lab none Calibration Lab none Calibrated in the lab after being recently returned from Licor. There is a change in the power wiring. Red/white is positive, green is negative. They also changed the delay to 240 ms.
URM06 URM06-002 2019-04-25 Lab none Installed Mayberry Installed on the Mayberry Tower on a short arm off the center-east side about 68cm above the water level.
LI-7700 TG1-0223 2019-04-25 Mayberry Gas Analyzer CH4 Upgrade Mayberry Gas Analyzer CH4 The thermocouple module was broken so we swapped it for a new one. The LI-7700 firmware was upgraded from v1.0.21 to v1.0.27 mostly minor bug fixes see change log https://www.licor.com/env/support/LI-7700/topics/change-log.html
LI-7500A 0418 2019-04-25 Lab none Installed West Pond Gas Analyzer CO2/H2O Installed on West Pond to replace sn 75H-2668 for calibartion
LI-7500A 75H-2668 2019-04-25 West Pond Gas Analyzer CO2/H2O Removed Lab none Removed from West Pond for calibration. Replaced by sn 0418
LI-7700 TG1-0224 2019-04-25 West Pond Gas Analyzer CH4 Upgrade West Pond Gas Analyzer CH4 The LI-7700 firmware was upgraded from v1.0.21 to v1.0.27 mostly minor bug fixes see change log https://www.licor.com/env/support/LI-7700/topics/change-log.html
URM06 URM06-001 2019-04-25 Lab none Installed Bouldin Alfalfa Installed on the Boldin Alfalfa radiation boom about 262cm above the ground to measure veg height.
LI-7500A 75H-2180 2019-04-25 Lab none Installed Bouldin Alfalfa Gas Analyzer CO2/H2O Installed on Bouldin Alfalfa to replace sn 0035 for calibration
LI-7500A 0035 2019-04-25 Bouldin Alfalfa Gas Analyzer CO2/H2O Removed Lab none Removed from Bouldin Alfalfa for calibration. Replaced by sn 75H-2180.
LI-7500A 1594 2019-04-26 Lab none Calibration Lab none Last calibration: 2019-01-30
AGC=99.5 SDM= DAC1= DAC2=
Ambient P=100.4kPa, Tair=24.1C, Tdew=10.2C
Zero Air at 1050psi, AMP CA4396 408.97 at 700 Tdewspan=16.00
CO2 zero 0.8643 -> .8646 Offset: 1.33ppm
CO2 span 1.0157 -> 1.0178 Offset: -1.16ppm
H2O zero 0.8891 -> .8868 Offset: -12.6ppm
H2O span 1.0043 -> 1.0026 Offset: .04ppm
Notes:
LI-7500A 0035 2019-04-26 Lab none Calibration Lab none Last calibration: 2019-01-28
AGC=99.2 SDM= DAC1= DAC2=
Ambient P=100.4kPa, Tair=22.6C, Tdew=10.7C
Zero Air at 1100psi, AMP CA4396 408.97 at 700 Tdewspan=16.00
CO2 zero 0.9375 -> .9371 Offset: -1.79ppm
CO2 span 1.0193 -> 1.0189 Offset: .25ppm
H2O zero 0.8969 -> .8989 Offset: 12.3ppm
H2O span 1.0023 -> 1.0186 Offset: -.34ppm
Notes:
LI-7500A 0073 2019-04-25 Lab none Installed Bouldin Corn Gas Analyzer CO2/H2O Installed on Bouldin Corn to replace sn 1594 for calibration
LI-7500A 1594 2019-04-25 Bouldin Corn Gas Analyzer CO2/H2O Removed Lab none Removed from Bouldin Corn for calibration. Replaced by sn 0073.
LI-7700 TG1-0155 2019-04-25 Bouldin Corn Gas Analyzer CH4 Upgrade Bouldin Corn Gas Analyzer CH4 The LI-7700 firmware was upgraded from v1.0.21 to v1.0.27 mostly minor bug fixes see change log https://www.licor.com/env/support/LI-7700/topics/change-log.html
LI-7500A 75H-2668 2019-04-26 Lab none Calibration Lab none Last calibration: 2019-02-11
AGC=100.0 SDM= DAC1= DAC2=
Ambient P=100.4kPa, Tair=24.5C, Tdew=11.1C
Zero Air at 1050psi, AMP CA4396 408.97 at 700 Tdewspan=16.00
CO2 zero 0.939 -> .9391 Offset: .22ppm
CO2 span 0.018 -> 1.0169 Offset: .59ppm
H2O zero 0.9073 -> .9069 Offset: -2.2ppm
H2O span 1.0117 -> 1.0139 Offset: -.05ppm
Notes:
LI-7700 TG1-0223 2019-04-25 Mayberry Gas Analyzer CH4 Calibration Mayberry Gas Analyzer CH4 Calibration Location: MB
Last calibration: 2018-10-26
RSSI=80%, Optical RH=12%
Ambient P=100.9kPa, Tair=26C
Zero Air at 1600psi, AMP CA3923 3.121 at 1600
CH4 Zero Offset: 0.013ppm
CH4 Span Offset: 0.015ppm
Notes: TC module swapped before calibration; breezy day
HMP45AC T2130005 2019-04-24 Lab none Tested Lab none Tested overnight in the lab. This sensor has an extension cable soldered on. Didn't see any spikes, and the numbers seem reasonable. However, the control wire seems extraneous--the AirT and RH numbers seem ok even when the control wire is not connected to the datalogger, even though the sensor still has the power control board. More testing needed before we deploy it.
HMP45AC U3030046 2019-04-24 Lab none Tested Lab none Tested overnight in the lab. This sensor has an extension cable soldered on. The RH was consistently 5-7% lower than the other 3 sensors (L1740398, T2130005, G4540023). I removed the extension cable, and the numbers were still low. I removed the humidity chip, and it read 150%. When I replaced the humidity chip, the RH was within 2-4% of the other 3 sensors. I added the same extension cable back on, and the numbers became low. This sensor doesn't look consistent and needs more testing before it can be deployed.
CR10X 47772 2019-04-16 Tonzi Removed Lab none Removed with the wooden cal panel for the FLIR because cows chewed the TC wires and the new cal panel is better