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UDC 3300 Process Controller Product Manual
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Section 7 – Input Calibration
7.1 Overview
Introduction
This section describes the field calibration procedures for Input 1 and
Input 2. Every UDC 3300 controller contains all input actuation ranges
fully factory calibrated and ready for configuration to range by the user.
However, these procedures can be implemented if the factory calibration
of the desired range is not within specifications.
Note that 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.
What’s in this section
This section contains the following topics:
Topic
See Page
7.1
Overview
219
7.2
Minimum and maximum range values
220
7.3
Preliminary Information
• Disconnect the field wiring
• Equipment needed
221
221
222
7.4
Input 1, 2, or 3 Set Up Wiring
• Thermocouple inputs using an ice bath
• Thermocouple inputs using a precision resistor
• RTD (Resistance Thermometer Device) inputs
• Radiamatic, Millivolts, or Volts except 0-10 Volts
inputs
• 0 to 10 Volts input
• 4-20 Milliamps input
223
223
224
225
226
227
228
7.5
Input 1, 2, or 3 Calibration Procedure
229
7.6
Restoring Factory Calibration
231
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.
Summary of Contents for UDC3300
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