Equipment and Calibration
Equipment history at East End| ALL | | Anemometer || Barometer || Battery Bank || Camera || CO2 Probe || Conductivity Sensor || Data Logger || DO Sensor || Gas Analyzer || Heat Flux Plate || Interface || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || RH & Temp || Solar Controller || Solar Panel || Spectrometer || 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 |
|---|---|---|---|---|---|
| Precipitation | |||||
| 2013-11-25 | 50229-112 | TR-525M | Moved | Precipitation | The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland |
| 2015-01-05 | 50229-112 | TR-525M | Removed | Precipitation | Removed from the site due to the tower falling over in the wind on 2014-12-30. The tipping bucket was in the water and had a dent, but seems okay. |
| 2015-01-20 | 50229-112 | TR-525M | Installed | Precipitation | Reinstalled after being removed when the scaffolding fell over. Still needs mounting on the boardwalk railing. |
| 2018-10-18 | 50229-112 | TR-525M | Calibration | Precipitation | Got 94 of 100 tips - adjusted screws a total of 0.5 turns CW. 2018-10-28: Got 98 of 100 tips and adjusted set screws 0.5 turn CW. 2018-11-01: Got 93 of 100 tips - no adjustment and need to retest 2018-12-18: 98 of 100 tips - no adjustment. |
| 2019-10-22 | 50229-112 | TR-525M | Calibration | Precipitation | After cleaning the tipping bucket we connected it to a CR23x and dripped 475ml of water through the bucket which should result in 100tips. We got 96 tips – we did not adjust it. |
| 2020-11-19 | 50229-112 | TR-525M | Tested | Precipitation | After cleaning the tipping bucket we connected it to a CR23x and dripped 475ml of water through the bucket which should result in 100 tips. We got 104 tips and did not adjust it. Might test again. |
| 2020-12-03 | 50229-112 | TR-525M | Tested | Precipitation | Plugged tipping bucket into the calibration CR23x and dripped 475ml of water through the bucket (1/2 of the bottle at a time) which should result in 100 tips. Got 110 tips. Did not adjust - will retest with better water metering system. |
| 2021-10-21 | 50229-112 | TR-525M | Tested | Precipitation | We dripped 240ml of water through the bucket using a peristaltic pump powered with a lithium battery. This should result in 50 tips in about 20 minutes. We got 54 tips and adjusted its set screws 1.5 turns CCW (1/2 turn of both screws is a 2-3% adjustment). |