Section 3 Getting Started; Main Board Power Jumpers - Omega DP119 User Manual

3.1 Main Board Power Jumpers

Caution: The meter has no power-on switch, so it will be
in operation as soon you apply power.
The meter can be configured to operate on 115VAC or
230VAC by the proper combination of the soldered wire
jumpers that are located on the printed circuit board. The
meter is set at the factory to be powered by the voltage
specified at the time of ordering. The same transformer is
used for either configuration, so all you need to do is to
select the jumpers as described in this section.
Important: These changes must be performed by a
qualified technician.
To change the Factory preset jumpers, do the following steps:
Note
Disconnect the power from the unit before proceeding.
1. Remove the main board from the case. Refer to
Disassembly/Assembly Section 3.8.
2. Locate the solder jumpers W1, W2, and W3 (located near
the edge of the main board alongside the transformer).
3. If your power requirement is 115 V ac, solder jumpers W1
and W3 should be wired, but jumper W2 should not. If
your power requirement is 230 V ac, solder jumper W2
should be wired, but jumpers W1 and W3 should not.

SECTION 3 GETTING STARTED

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