MIC 1400 Manual
Edition 1
14
Input Connections 2.3
In general, all wiring connections are made to the instrument after it is
installed. Avoid Electrical Shock. AC power wiring must not be connected
to the source distribution panel until all wiring connection procedures are
completed.
FIGURE 2-7
Main Supply
Connect the AC line voltage, hot and neutral, to terminals 13 and 14 re-
spectively as illustrated below. Connect the positive to terminal 14 and
negative to terminal 13 for 24 V DC supply.
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.
FIGURE 2-9
RTD Input
Make RTD connections as illustrated below. For a three wire RTD, connect
the resistive leg of the RTD to terminal 1 and the common legs to terminals
2 and 3. For a two wire RTD, connect one leg to terminal 2 and the other
leg to terminal 3 as shown below. A jumper wire supplied by the customer
must be installed between terminals 2 and 3. Input conditioning jumper
must be positioned correctly (see Appendix B) and Hardware Definition
Code must be correct (see Appendix C).
13
14
L
N
-
+
3
2
-
+
Thermocouple
