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Front panel calibration, Additional setup, Voltmeter calibration – AMETEK XHR 1000 Watt Series User Manual

Page 76

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Calibration
Front Panel Calibration

76

Operating Manual for XHR Series Power Supply

Front Panel Calibration

Front panel calibration includes voltmeter, ammeter, voltage and current preview
and over voltage protection (OVP) setpoint and preview functions. Perform all
procedures in the sequence give.

Additional

Setup

Make calibration adjustments using multiturn potentiometers accessed by removing
the power supply’s cover.

1. Unfasten the cover and move it back one inch from the front to allow access to

the calibration potentiometers on the A1 PCB. Refer to

Figure 5.1

for the

location of the pots.

2. Perform the following calibration procedures.
3. Once you are finished, turn off the power supply and replace the cover

Figure 5.1 Front Panel Calibration Locations

Voltmeter

Calibration

1. Connect the DVM to the output bus bars at a point close to the chassis. Turn the

current control knob fully clockwise.

2. Increase the output voltage to show the maximum rated voltage on the external

DVM. Adjust the voltmeter full scale adjust potentiometer (R50) until the front
panel voltmeter reads the maximum rated output voltage. Check that the front
panel voltage mode LED turns on.