United Security Products AVD-45c Handbuch Seite 259

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1/03 UDC 6300 Process Controller Product Manual 245
7.3 2nd Current Output
Introduction
Calibrate the controller so that the Second Current Output provides the
proper amount of current over the desired range.
The controller can provide a 2nd 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 and 21 mA.
Equipment needed
You will need a standard shop type milliammeter with whatever accuracy
is required, capable of measuring 0 to 20 milliamps.
Calibrator
connections
Refer to Figure 7-2 and wire the controller according to the procedure
given in Table 7-3.
Table 7-3 Set Up Wiring Procedure for 2nd Current Output
Step Action
1
Tag and disconnect the field wiring, at the rear of the controller, from
terminals 4(+) and 5(–). See Figure 7-2.
2
Connect a Milliammeter across these terminals.
3
Apply power and allow the controller to warm up 15 minutes before
you calibrate.
Continued on next page
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