Equipment and Calibration

View History

Equipment Entry

Instrument:DO Sensor
Manufacture:Sensorex
Model No:DO6400/T
Serial No:DO-04
Tag No:
Acquisition Date:2012-03-12
Project:DWR-Wetland
Location on 2014-01-14:Lab, -5cm water
Notes: Campbell part number CS511.

Documents

PackingSlip: ps_Campbell_20120312.pdf

History

Rec No.DateLoc FromTitleLoc ToNotes
1171 2014-01-14 Lab none Maintenance Lab none Due to corrosion, the probe was taken apart and left to sit in vinegar overnight. The following day I changed the membrane and filled it with electrolyte solution and it seemed to work fine after that (it was reading ~40 mV as expected).
1170 2014-01-10 Mayberry DO Sensor A Removed Lab none The probe was pulled since it was reading high and looked corroded.

941 2013-02-28 Lab none Installed Mayberry DO Sensor A Installed in the surface at Mayberry about 10 cm below surface.
938 2013-02-26 Lab none Maintenance Lab none This sensor was pulled from the rice since the field was drained. I (Sara) cleaned it and replaced the membrane since it had been a while. I left it without electrolyte solution until we install it in the field again to minimize corrosion.
934 2013-02-21 Twitchell Rice DO Sensor Removed Lab none Removed from the now drained field at Tiwtchell. There will be no water in the field until after the rice is up late this coming spring.
878 2013-01-03 West Pond 0 Moved Twitchell Rice DO Sensor This sensor was moved from the upper location at West Pond to near the well at the Twitchell Rice. The sensor was left laying sideways on the bottom of the flooded field.
796 2012-09-06 Lab none Installed West Pond DO Sensor Lower DO-04 was resintalled in the deeper location at West Pond. The lab check went fine and it has been decided that the low values are correct and that the water is just very oxygen poor.
795 2012-08-30 West Pond DO Sensor Lower Removed Lab none DO-04 was removed from the water at West Pond due to continued low readings. The sensor will be checked in the lab and reinstalled.
794 2012-08-16 West Pond DO Sensor Lower Serviced West Pond DO Sensor Lower DO-04 was serviced in the field due to continued unexpectedly low readings. The inside was rinsed with vinegar and scrubbed with a tooth brush. The electrolyte was replaced.
793 2012-08-02 West Pond DO Sensor Lower Serviced West Pond DO Sensor Lower DO-04 was serviced in the field due to unexpectedly low readings. The electrolyte was replaced.
537 2012-04-17 Lab none Installed West Pond DO Sensor Lower Installed on post northwest of scaffolding at west pilot pond. Not running because of forgotten power connector.
807 2012-04-16 Lab none Calibration Lab none DO-04 was calibrated in the lab: M = 8.56/35.34089 in (mg/L)/mV (aka ppm/mV) (@ 23C) @15cm below water