BATTERY CHARGER USER’S MANUAL PART- 2: THEORY OF OPERATION
MCEnPC23-REV.2.4 Page 44
g. VoltageTemperatureCompensation(optional)
g-1. Sensor Installation
When the voltage temperature compensation option is ordered with the charger, temperature sensor is wired to the
charger’s control card and the twisted wires are coiled and tied inside the enclosure.
WARNING
BEFORE starting to work on the installation:
Check and apply the applicable electrical codes for the installation;
Ensure that AC & DC power sources are disconnected, and breakers are open and possibly locked;
DO NOT touch battery posts or any conducting parts
To install the voltage temperature compensation sensor:
1. Open the enclosure; undo the tie holding the wires in place.
2. Route the wires to the battery string, preferably separately from the AC and DC power cables/wires to
prevent the readings to be affected by the radiated noise. Cable length is 25 feet (8m).
3. Determine the battery cell/ block that will have the highest operating temperature. Hint: Usually it is the
cell/block in the middle of the very top row.
4. Mount the sensor on the chosen battery cell/block on a clean, dry surface, as close as possible to the
positive post.
5. If mounting of the sensor on the battery is not possible, place it on the battery rack, as close as possible to
the chosen battery cell/block.
6. DO NOT mount the compensation sensor on insulation material such as wood or Styrofoam.
7. Follow the start up procedure in your battery charger manual.
8. Verify, and if needed, re-adjust the battery voltage temperature correction factor in the menu of your
battery charger as per your battery manufacturer instructions.
g-2. Temperature compensation menu and examples (This option is disable in equalization mode)
When enabled, this function adjusts the float voltage to compensate the temperature effect on the battery charging.
The reference temperature is 20°C / 72°F.
The compensation value is adjusted in: mV/ºC/cell
. We can enable or disable and adjust Voltage Temperature
compensation as shown on the procedure below:
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