Current Proportional Output Calibration; Figure 8-1 Wiring Connections For Calibrating Current Proportional Output; Table 8-1 Set Up Wiring Procedure Current Proportional Output - Honeywell UDC 3300 Product Manual

8.2 Current Proportional Output Calibration

Introduction
Equipment needed
Calibrator connections
Figure 8-1
234
Calibrate the controller so that the output provides the proper amount of
current over the desired range. The controller can provide an output
current range of from 0 to 21 milliamperes and can be 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.
You will need a standard shop type milliammeter, with whatever accuracy
is required, capable of measuring 0 to 20 milliamps.
Referring to Figure 8-1, wire the controller according to the procedure
given in Table 8-1.
Table 8-1 Set Up Wiring Procedure Current Proportional Output
Step
1
Apply power and allow the controller to warm up 15 minutes before you
calibrate.
2
Tag and disconnect the field wiring, at the rear of the controller, from
terminals 2 (+) and 3 (–). See Figure 8-1.
3
Connect a milliammeter across these terminals.
Wiring Connections for Calibrating Current Proportional Output
+
10
L1
11
L2/N 12
22 13
23 14
24 15
25 16
26 17
27
UDC 3300 Controller Product Manual
Action
Milliammeter
–
1
+
2
–
3
4
5
6
7
8
9
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