Equipment and Calibration

View History

Equipment Entry

Instrument:Water Level
Manufacture:Campbell Sci.
Model No:CS451
Serial No:70011229
Tag No:
Acquisition Date:2015-09-28
Project:CDFW
Location on 2020-08-05:East End,
Notes: 0-7.25psi = 0-5.1m of water
15' cable

Documents

Calibration: Campbell_CS451_70011229.pdf
PackingSlip: ps_Campbell_20150928.pdf
Report: Pressure transducer comparison 12-2018 - 2018-12-10
Report: Water Level sensor calibration with staff gauge - 2018-04-24

History

Rec No.DateLoc FromTitleLoc ToNotes
4662 2020-08-05 Lab none Installed East End Water Level Installed at EE to replace sn 20010375, which was brought back to the lab for repair. From field note calculations, sensor was installed 22cm below ground level.
Top of well to ground level= 41 cm
Top of well to sensor = 63 cm
Top of well to bottom of well inside pipe = 66 cm (dry at bottom of well)
3984 2018-12-10 Lab none Tested Lab none Tested in both air and water in the lab, but saw diurnal fluctuations of only 0.1 cm, not the 5-6 cm we saw in the field. See RT report "Pressure transducer comparison 12-2018."
3598 2018-07-12 Mayberry Water Level Removed Lab none Removed from MB because it had diurnal fluctuations, which seem suspect. It was replaced by sn 70011236.
2328 2016-06-24 Lab none Installed Mayberry Water Level Installed on the Mayberry tower to replace the old sensor that has been acting flakey.
1967 2015-09-04 Factory Calibration Factory Initial factory calibration. Recommended interval: 2 years of service.