Equipment and Calibration History

History for Fabricated BB-Fab BB-VR_soilco2

Rec No.	Date	Loc From	Title	Loc To	Notes
4799	2020-09-16	Vaira Battery Bank SoilCO2	Maintenance	Vaira Battery Bank SoilCO2	I checked the water in the soil co2 battery bank. The water levels were low exposing the plates but these batteries didn’t take that much water – about a gallon to fill all of them.
3478	2018-06-05	Twitchell Alfalfa	Replaced	Vaira	The battery bank from Twitchell Alfalfa was installed to replace the original batteries here that had a catastrophic failure
4644	2012-03-21	Lab none	Installed	Vaira none	I installed new batteries (borrowed from DWR) for the new soil co2 system. The original batteries were killed because they were wired for 24V and the solar for 12V.
4643	2012-03-19	Vaira	Removed	Lab none	The four new batteries for the soil CO2 sensors were completely dead (~2V). The batteries were wired for 24V but the solar panels were wired for 12V. Batteries removed.
4642	2012-02-16	Lab none	Installed	Vaira none	Initial installation of the VR_soilco2 battery bank. Two pairs of deep cycle batteries were installed for a 24V system. However the solar panels were only wired as 12V and bled the batteries dry.