Adjustable Voltage Battery Discharge Indicator
A lot of engineering packaged in a small gauge.
This series of battery gauges are multi-functioning devices ... adjustable voltage range, separate controls for turning on the display and hour meter and an internal relay for powering auxiliary devices.
The battery gauge "empty" voltage reading can be adjusted to closely match the gauge to the actual battery level of charge. Seven battery voltage ranges can be selected for for each voltage range; 12, 24, 36 and 48 volt operation. See bottom of listing for range specifics.
The gauge is connected directly to the battery, but no display will show until a separate lead wire is taken to plus volts. The gauge is monitoring the battery all of the time. By having a separate connection to illuminate the display, it stops the battery from discharging if left for extended periods.
Another connection is used to enable the hour meter. Therefore it is possible to view the battery state of charge, but not accumulated hours until it is desired to do so.
An internal relay logic output allows powering auxiliary devices using your external solid state relay. The relay logic output is present until the battery is "empty" at which time the logic output shuts off.
12 Volt Range selections
* Range L - 9.6 volts Empty; 12.38 Full
* Range M - 10.08 volts Empty; 12.37 Full
* Range N - 10.38 volts Empty; 12.36 Full
* Range O - 10.68 volts Empty; 12.35 Full
* Range P - 10.86 volts Empty; 12.35 Full
* Range Q - 11.04 volts Empty; 12.34 Full
* Range R - 11.16 volts Empty; 12.34 Full
24 Volt Range Selections
* Range L - 19.2 volts Empty; 24.76 Full
* Range M - 20.16 volts Empty; 24.73 Full
* Range N - 20.76 volts Empty; 24.72 Full
* Range O - 21.36 volts Empty; 24.70 Full
* Range P - 21.72 volts Empty; 24.69 Full
* Range Q - 22.08 volts Empty; 24.69 Full
* Range R - 22.32 volts Empty; 24.69 Full
36 Volt Range Selections
* Range L - 28.8 volts Empty; 37.13 Full
* Range M - 30.24 volts Empty; 37.1 Full
* Range N - 31.14 volts Empty; 37.08 Full
* Range O - 32.04 volts Empty; 37.06 Full
* Range P - 32.58 volts Empty; 37.04 Full
* Range Q - 33.12 volts Empty; 37.03 Full
* Range R - 33.48 volts Empty; 37.03 Full
48 Volt Range Selections
* Range L - 38.4 volts Empty; 49.51 Full
* Range M - 40.32 volts Empty; 49.47 Full
* Range N - 41.52 volts Empty; 49.44 Full
* Range O - 42.72 volts Empty; 49.41 Full
* Range P - 43.44 volts Empty; 49.39 Full
* Range Q - 44.16 volts Empty; 49.37 Full
* Range R - 44.64 volts Empty; 49.37 Full