Sargent EC325 Installation guide

Issue 1 Page 1 of 1 21 October 2002

1 EC325 Control Panel Replacement

1.1 Installation Process

• Unpack the new control panel.

• Remove the decorative bezel from the control panel, by pulling in the direction of the BLUE

arrows.

• Remove the two screws that hold the panel in place.

• Carefully lift the panel forward to gain access to the rear circuit board of the control panel.

• Disconnect the 20-way connector and the 2-way temperature probe connector.

• Place the old panel to one side.

• Connect the new panel to the 20-way and 2-way connectors.

• Check that all connectors are firmly seated.

• Refit the control panel using the original screws and refit the bezel.

1.2 Current sensor re-calibration

Each EC325 control panel needs 'calibrating' to match the current sensor fitted within the EC325PSU.

The procedure is as follows:

• If you have a solar panel fitted, either unplug the panel at the base of the PSU or carry out

this procedure at night.

• With the charger turned off, and the power turned off at the control panel (no LED’s on)

• Scroll down ▼ the display until battery current is shown

• Hold down the select button ◄ (left arrow) until 'calibrating….' appears; keep the button

pressed until the battery current reading re-appears.

• Now repeat the process to store the calibration reading.

• Hold down the select button ◄ (left arrow) until 'calibrating….' appears; keep the button

pressed until the battery current reading re-appears.

• The current reading should now be correct.

Note: After calibration, the panel will display 0.1 Amp with the LCD backlight on, this will drop to

0.0 Amp when the backlight turns off.

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