Equipment and Calibration
Equipment history at Twitchell Alfalfa| ALL | | Anemometer || Battery Bank || Camera || CO2 Probe || Data Logger || Forced Diffusion || Gas Analyzer || Heat Flux Plate || Interface || LED sensor || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || RH & Temp || Soil Moisture Probe || Solar Controller || Solar Panel || Weather Station |
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 |
|---|---|---|---|---|---|
| Solar Controller | |||||
| 2013-05-24 | 11400080 | PS-30M | Installed | Installed in the box at the Alfalfa tower. Connected to one 140W panel and two G27 batteries. | |
| 2018-05-10 | 11400080 | PS-30M | Installed | Solar Controller | Installed at East Pond in a new smaller box on the solar system to replace the two 15A charger controllers that were running in parallel. |
| 2018-05-10 | 11400080 | PS-30M | Removed | Solar Controller | Removed from Twitchell Alfalfa to swap out a 15A version to be installed here. |
| 2018-05-10 | 12501584 | PS-15M | Removed | Solar Controller | Removed from East Pond. Replaced by 30A controller. |
| 2018-05-10 | 12501584 | PS-15M | Installed | Solar Controller | Removed from East Pond in favor of a 30A version and installed at Twitchell Alfalfa |
| 2018-06-13 | 12501584 | PS-15M | Removed | Removed with Twitchell Alfalfa site decommissioning. | |