Equipment and Calibration

Equipment history at Mayberry

| ALL | | Anemometer || Barometer || Battery Bank || Camera || CH4 Probe || CO2 Probe || CO2 Transmitter || Conductivity Sensor || Data Logger || DO Sensor || Fluorometer || Forced Diffusion || Gas Analyzer || Heat Flux Plate || Infrared Temperature || Interface || LED sensor || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || Range Finder || RH & Temp || Soil Moisture Probe || Solar Controller || Solar Panel || Water Level |

SELECT a.recno, a.eh_date, a.eh_loc1, a.eh_loc2, IF(a.eh_loc2=:loc, a.eh_locref2, a.eh_locref1) AS ref, a.eh_locref2, a.eh_title, a.eh_notes, a.eh_id, b.serialno, b.equip, b.modelno FROM equiphist a INNER JOIN equiplist b ON a.eh_id=b.recno WHERE (a.eh_loc1=:loc1 OR a.eh_loc2=:loc2) AND b.equip=:eq ORDER BY b.serialno, a.eh_date

Date Serial No. Model Action Ref Notes
RH & Temp
2023-12-22 D4420028 HMP45AC Installed RH & Temp Installed at MB to replace HMP155 that died and was removed last visit. HMP155 cable removed this time. Met program updated for different AirT offset.
2021-11-23 T2820180 HMP155 Installed RH & Temp Installed on the MB tower to replace HMP45 sn U2120013 which was drifting. It was installed with a new shield and aspirated with a 12V fan. The cable on this sensor says "sn T2820183", which is different than the actual sn of the sensor, so I crossed out sn on the cable to avoid confusion.
2023-12-08 T2820180 HMP155 Removed RH & Temp Removed from the Mayberry tower and brought back to the lab for testing. It was reading -79 deg C and 0% RH.
2011-11-22 U2120013 HMP45A Installed RH & Temp Installed on the Mayberry tower to replace sn U3030041. This HMP45 has a lengthened cable to allow mounting with the recently raised eddy sensors.
2012-04-24 U2120013 HMP45A Rewired RH & Temp Output removed from CR1000 and swapped over to new LI-7700 sn TG1-0224 analog inputs
2017-12-18 U2120013 HMP45A Removed RH & Temp Removed from Mayberry for 24hour side-by-side comparison at Twitchell Alfalfa
2017-12-19 U2120013 HMP45A Removed RH & Temp Removed from the HMP inter-comparison at Twitchell Alfalfa and returned to Mayberry
2019-01-24 U2120013 HMP45A Serviced RH & Temp Short in the 12V wire at the splice point. Repaired in the field with a screw terminal, but should be brought back to the lab for a full repair.
2019-10-22 U2120013 HMP45A Repair RH & Temp Removed screw terminal that was currently fixing a broken wire and fixed the break with solder, heat shrink, and liquid electrical tape.
2021-11-23 U2120013 HMP45A Removed RH & Temp Removed from MB and brought back to the lab for testing. AirT has been drifting downward since late October.It was replaced by HMP155 sn T2820180.
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