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Despatch MIC1422 Controller User Manual

Page 17

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FIGURE 2-7A
24V Nominal AC/DC Supply

The supply connection for the 24V AC/DC option of the instrument are as shown below.
Power should be connected via a two pole isolating switch and a 315 mA slow-blow
(anti-surge type T) fuse. With the 24V AC/DC supply option fitted, these terminals will
accept the following supply voltage ranges:

24V (nominal) AC 50/60 Hz -

20 - 50 V

24V (nominal) DC -

22 - 65 V



FIGURE 2-8
Thermocouple (T/C) Input

Make thermocouple connections as illustrated below. Connect the positive
leg of the thermocouple to terminal 2 and the negative leg to terminal 3.

Note: Thermocouple must not be grounded! Damage to the cold junction in the
control will result!