Xantrex Technology XPF 60-20 - Handbuch (Seite 12)

Calibration
Allow at least 5 minutes warm-up before commencing calibration.
Access to Calibration Adjustments
All routine calibration adjustments are on the front panel control board which is mounted directly
behind the board carrying the front panel controls. Component adjustment references are given
as Output 1/Output 2, e.g. VR5/VR105, where Output 1 is the right-hand output (viewed from the
rear). Refer to the diagram below.
To gain access to the board it is necessary to remove the top cover.
WARNING!
When the instrument is connected to its supply the removal of covers is likely to expose live parts.
The instrument should be disconnected from all voltage sources before it is opened for any
adjustment, replacement, maintenance or repair. Capacitors inside the power supply may still be
charged even if the power supply has been disconnected from all voltage sources but will be
safely discharged about 5 minutes after switching off power.
Any adjustment, maintenance and repair of the opened instrument under voltage shall be avoided
as far as possible and, if inevitable, shall be carried out only by a skilled person who is aware of
the hazard involved.
Remove the 6 side screws to release the top cover.
Control pcb calibration points (viewed from rear)
Equipment Required
A 5½ digit multimeter with better than 0.05% accuracy on dc volts and better than 0.1% accuracy
on dc current (to 10A); alternatively use a precision shunt for current measurement.
Rheostat or other high power load arrangement to provide up to 20A load at 20V.
1k
Ω 1% 0.25W resistor.
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