Equipment and Calibration History
History for Texas Electronics TR-525M 50229-112
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 5540 | 2021-10-21 | East End Precipitation | Tested | East End 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). |
| 5021 | 2020-12-03 | East End Precipitation | Tested | East End 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. |
| 4979 | 2020-11-19 | East End Precipitation | Tested | East End 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. |
| 4121 | 2019-10-22 | East End Precipitation | Calibration | East End 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. |
| 3749 | 2018-10-18 | East End Precipitation | Calibration | East End 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. |
| 1716 | 2015-01-20 | Lab none | Installed | East End Precipitation | Reinstalled after being removed when the scaffolding fell over. Still needs mounting on the boardwalk railing. |
| 1701 | 2015-01-05 | East End Precipitation | Removed | Lab none | 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. |
| 1166 | 2013-11-25 | DWR Corn Precipitation | Moved | East End Precipitation | The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland |
| 614 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed at the edge of the field at the DWR Corn site |