Equipment and Calibration History

History for Vaisala HMP45AC U3030032

Rec No.DateLoc FromTitleLoc ToNotes
2750 2017-05-05 Factory Disposed Disposed Not repairable, so disposed of at CSI.
2749 2017-04-03 Lab none Serviced Factory Shipped to Campbell Sci for calibration. CSI Technician notes:
Tested & inspected. 2x4 connectors have corrosion, need replaced. Needs new o-rings. While testing sensor head, also found temp chip out of spec, drifting high in high humidity. Temperature chips are no longer available for this sensor. Sensor can not be repaired. Dispose of at CSI.
1067 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
265 2011-01-18 Lab none Installed Twitchell Rice 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.
95 2010-03-18 Sherman Island Removed Lab none Removed from the soil moisture CR10X at Sherman Island. Values were bad and duplicate measurment are on the tower. Also needed the solar radiation shield for Vaira.
56 2010-02-09 Sherman Island Location Sherman Island This is currently connected to the CR10X collection soil moisture from the echo probes.
96 2007-01-02 Factory Calibration Factory Calibrated at Campbell: Tested and inspected, replaced O-rings, calibrated
4894 2003-01-21 Tonzi none Removed Lab none Removed from Tonzi. Replaced by sn W0510026