Honeywell UDC 3300 manual Auxiliary Output Calibration, Any other values between 0 mA and 21 mA

8.4 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 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.

Equipment needed

Calibrator connections

You will need a standard shop type milliammeter with whatever accuracy is required, capable of measuring 0 to 20 milliamps.

Referring to Figure 8-2, wire the controller according to the procedure given in Table 8-4.

Table 8-4 Set Up Wiring Procedure for Auxiliary Output

Step

1

2

3

Action

Apply power and allow the controller to warm up 30 minutes before you calibrate.

Tag and disconnect the field wiring, at the rear of the controller, from terminals 16 (+) and 17 (–). See Figure 8-2.

Connect a milliammeter across these terminals.

Figure 8-2 Wiring Connections for Calibrating Auxiliary Output

Milliammeter

+–

	10
L1	11
L2/N	12
22	13
23	14
24	15

25	+ 16
26	– 17

27

1

2

3

4

5

6

7

8 9

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240 UDC 3300 Controller Product Manual 4/00