Equipment and Calibration

Equipment history at Bouldin Alfalfa

| ALL | | Anemometer || Barometer || Camera || Data Logger || Flux Analyzer || Forced Diffusion || Gas Analyzer || Heat Flux Plate || Infrared Temperature || Interface || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || Range Finder || 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
Precipitation
2016-08-12 65560-615 TE525MM Installed Precipitation Installed with the initial set up of the site.
2018-10-18 65560-615 TE525MM Calibration Precipitation Got 90 of 100 tips. Adjusted screws a total of 2.5 turns CW. 2018-10-18: Got 90 tips and adjusted screws 1 turn CW. 2018-11-01: Got 91 tips and adjusted screws 2 turns CCW accidentally (should have been CW). 2018-12-13: Got 86 tips and adjusted screws 4.5 turns CW. 2018-12-18: Got 107 tips and adjusted screws 1 turn CCW.
2019-10-22 65560-615 TE525MM 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 100 tips. We got 103 tips – no adjustment needed.
2020-11-19 65560-615 TE525MM 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 106 tips. We will retest with better water metering system
2021-10-21 65560-615 TE525MM 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).
2021-11-18 65560-615 TE525MM Calibration 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 52 tips and I adjusted both set screws 1 turn CCW.
2021-12-01 65560-615 TE525MM 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 50 tips so this bucket is good to go until next year.
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