Equipment and Calibration History

History for Vaisala HMP60 L1740395

Rec No.	Date	Loc From	Title	Loc To	Notes
4656	2020-08-04	Factory none	Disposed	Disposed none	The sensor was unrepairable and Campbell Sci disposed of it. Note from Campbell: "Sensor is shorted on the 12V input. Sensor is completely potted except for RH and Temperature components. Sensor cannot be repaired."
4647	2020-07-28	Lab none	Shipped	Factory none	Sent back to Campbell for repair on RMA # 32280.
4629	2020-07-23	Lab none	Tested	Lab none	Tested in the lab. I used a cable in the lab to power the sensor and measure its temperature signal with a volt meter. The reading was wrong and the base of the sensor definitely got warm. I same cable with another HMP60 and got a much more reasonable temperature reading and did not notice the sensor getting warm. The sensor needs to go back to Campbell for evaluation.
4627	2020-07-21	Bouldin Corn RH & Temp	Removed	Lab none	Removed from BC and brought back to the lab for inspection. AirT/RH both went bad on 7/5 but nothing obviously wrong with it.
4297	2019-12-13	Lab none	Installed	Bouldin Corn RH & Temp	Re-installed at Bouldin Corn after re-assembling tower.
4265	2019-12-02	Bouldin Corn RH & Temp	Removed	Lab none	Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26.
2724	2017-04-26	Lab none	Installed	Bouldin Corn RH & Temp	Installed on the 7500 post at the Bouldin Corn site with the initial set up of the tower.