Auxiliary Output Calibration - Honeywell UDC2800 Product Manual

Chapter 7 - Output Calibration

Auxiliary Output Calibration

Introduction
Calibrate the controller so that the auxiliary output provides the
proper amount of current over the desired range. The controller can
provide an auxiliary current output range of from 0 mA to 21 mA and
and is usually calibrated at 4 mA for 0 % of output and 20 mA for
100 % of output or any other values between 0 mA and 21 mA. It is
not necessary to re-calibrate the controller in order to change from 4
to 20 mA operation over to 0 to 20 mA operation, a simple
configuration change is all that is required. See Options Set Up
Group for more information.
Equipment Needed
You will need a calibrating device with whatever accuracy is required,
capable of measuring 0 to 20 mA.
Calibrator Connections
Refer to Figure "Wiring Connections for Calibrating Auxiliary Output"
below and wire the controller according to the procedure given in the
table "Set Up Wiring Procedure for Auxiliary Output".
Figure 7-2: Wiring Connections for Calibrating Auxiliary Output
244