Equipment and Calibration

Equipment history at Twitchell Rice

| ALL | | Anemometer || Barometer || Battery Bank || Data Logger || DO Sensor || Gas Analyzer || Heat Flux Plate || Interface || Multiplexer || Net Radiometer || PAR Sensor || Precipitation || Pump || Pyranometer || RH & Temp || Scroll Pump || 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
2011-01-18 U3030032 HMP45AC Installed RH & Temp This sensor was checked in the lab against the Vaisala hand-held and was very close +-1C +-1%. It was then installed on the Twitchell tower to replace the one there that didn't seem to be working.
2013-08-28 U3030032 HMP45AC Removed RH & Temp Removed from the Twitchell Rice tower due to bad looking RH readings. Need to be tested in the lab. Replaced by sn U3030046
2009-04-03 U3030046 HMP45AC Installed RH & Temp This sensor was installed with the new eddy tower at Twitchell Rice.
2011-01-18 U3030046 HMP45AC Removed RH & Temp This sensor was removed from the Twitchell tower because it was giving bad readings.
2013-08-28 U3030046 HMP45AC Installed RH & Temp Installed on the Twitchell tower to replace sn U3030032 that was removed for bad RH readings.
2017-04-04 U3030046 HMP45AC Removed RH & Temp Removed with the decommissioning of the Twitchell Rice site.
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