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Maintenance
Additional calibration selections allow you to perform other calibration procedures:
CALIBRATE REFERENCE JUNCTIONS – for calibrating the two Cold Junction (CJ) references on AI
module.
COPY ANALOG INPUT CALIBRATION – for copying calibration values from one AI module channel to
another.
RESET ANALOG INPUT CALIBRATION – to restore AI module channels to their factory calibration.
RESET REF. FUNCTION CALIBRATION – to restore CJ reference to their factory calibration values.
8.5 AO MODULE calibration
Two calibration selections are accessible under the CALIBRATE AO menu selection
CALIBRATE AO CHANNEL – to calibrate the zero offset and span values of the AO module channels to
user-defined values.
RESTORE AO FACTORY CAL – to restore factory calibrated to an AO module channel.
The AO module contains a wire jumper (labeled ST1) on the PWA. Cutting this jumper will prevent any
changes to initial calibration values of the module and prevent any further field calibration.
See Figure 8-1 for the location of the jumper.
Calibrate Analog Outputs
For CAT calibration, a precision milliammeter or a precision resistor and voltmeter is required.
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Wire Jumper ST1
C a v a lie r S T 1
S T 1
Analog Output
M o d u le d e s o rtie
Module
a n a lo g iq u e
Figure 8-1 AO Module Jumper ST1
Video Recorder – User Manual
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O U T 4
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O U T 3
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O U T 2
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O U T 1
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