Equipment and Calibration

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Equipment Entry

Instrument:Battery Bank
Manufacture:Fabricated
Model No:BB-Fab
Serial No:BB-TA
Tag No:NULL
Acquisition Date:2013-05-24
Project:DWR-Wetland
Location on 2018-06-05:Vaira, NULL
Notes: NULL

Documents

No documents found

History

Rec No.DateLoc FromTitleLoc ToNotes
3479 2018-06-05 Twitchell Alfalfa Removed Vaira The site was shut down and the battery bank with action packer was removed for use at Vaira soil co2.
3352 2018-03-07 Twitchell Alfalfa Maintenance Twitchell Alfalfa The battery bank at TA was rewired from to pairs (24V) to four in parallel (12V).
2227 2016-04-01 Twitchell Alfalfa Upgrade Twitchell Alfalfa I put the battery bank in a new battery box, a Rubbermaid 35-gallon Action Packer. The four batteries fit with room to spare.
2057 2015-11-11 Twitchell Alfalfa Upgrade Twitchell Alfalfa All four batteries were swapped out. Four new 27DCMJ batteries were installed. Two of the old batteries had Jan 2012 stickers and may not be in such bad shape.
2056 2015-10-20 Twitchell Alfalfa Notes Twitchell Alfalfa The tower started losing power regularly over night. Time to swap out the batteries.
2055 2015-09-15 Twitchell Alfalfa Notes Twitchell Alfalfa The batteries have started to have problems supplying 12V from the 6400.
2054 2014-09-04 Twitchell Alfalfa Upgrade Twitchell Alfalfa A line was added to one of the external batteries to pull 12V off for the 6400.
2053 2014-08-15 Twitchell Alfalfa Upgrade Twitchell Alfalfa The older external third battery was removed. The original two batteries were rewired into series and the other two isolated batteries were integrated. The system is now two pairs of batteries for a 24V system.
2052 2014-08-13 Twitchell Alfalfa Upgrade Twitchell Alfalfa Two batteries for the soil CO2 system were brought over from Sherman. These two batteries are in series for 24V and are isolated for the time being from the solar system.
2051 2013-11-25 Twitchell Alfalfa Upgrade Twitchell Alfalfa A third older battery was added in parallel outside the wooden box due to low voltage power outages.
2050 2013-06-05 Twitchell Alfalfa Upgrade Twitchell Alfalfa The batteries were moved into an insulated wooden box.
2049 2013-05-24 Lab none Installed Twitchell Alfalfa Two Flooded Lead Acid (FLA) batteries model 27DCMJ deep cycle batteries with Jan 2012 stickers were installed in parallel for a 12VDC battery bank. The batteries are in then open.