Input Calibration
3/07 UDC3500 Universal Digital Controller Product Manual 277
5 Input Calibration
WARNING—SHOCK HAZARD
INPUT CALIBRATION MAY REQUIRE ACCESS TO HAZARDOUS LIVE CIRCUITS, AND
SHOULD ONLY BE PERFORMED BY QUALIFIED SERVICE PERSONNEL. MORE THAN
ONE SWITCH MAY BE REQUIRED TO DE-ENERGIZE UNIT BEFORE CALIBRATION.
5.1 Overview
Introduction
This section describes the field calibration procedures for Analog Inputs 1 through 5.
• All input actuations in every controller are fully factory-calibrated and are ready for
configuration by the user.
• Field Calibration can improve the accuracy of the Controller if necessary for a
particular application.
CAUTION
The field calibration will be lost if a change in input type configuration is implemented at a later
time. The original factory calibration data remains available for later use after a field calibration
is done. See Section
5.6 if you want to restore factory calibration values.
What’s in this section?
The following topics are covered in this section.
TOPIC See Page
5.1 Overview 277
5.2 Minimum and Maximum Range Values 278
5.3 Preliminary Information 280
5.4 Input Set Up Wiring 282
5.5 Input Calibration Procedure 291
5.6 Restore Input Factory Calibration 293
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