APG PG-2000 user manual - Manual (Page 5)

Rev. A5,11/08 PG-2000
5
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C. Re-check the zero and re-adjust the zero (“Z”) pot if required.
D. Repeat steps B and C, until no further adjustment is required.
4. External Power:
When equipped with this option, the gauge no longer operates from batteries,
but instead is "externally" powered. The unit is powered via a miniature "Phone
Jack" on the back of the unit. The "Tip" connection is the "+Power", and the
"Center" is connected to the "-Power".
It is important that you never remove or insert the "Phone Jack" connector
into the gauge with the power turned on. This can damage the gauge and cause
it to fail. Only turn the power on after the "Phone Jack" has been inserted into
the external power connector.
External Output Table
External Power
Tip + Power
Center – Power
Body No connection
External Power and Analog Output Plug