Watlow 942 Series - Chapter 2; Auxiliary Wiring

19
Install and Wire, Chapter 2 WATLOW Series 942 User's Manual
Auxiliary Wiring
4 - 20mA Retransmit, Auxiliary Output
Model # 942A- _ _ _ 6 - _ 000
Retransmit Output
When using a retransmit output such as 0 - 5VDC or 4 - 20mA, the rL and rH settings scale
the range of the retransmit output.
An example of this is: By setting rL = 0, rH = 1000 and Ot4 = PrOC a process value of 500
will result in a retransmitted signal of 2.5VDC or 12mA.
0 - 5VDC Retransmit, Auxiliary Output
Model # 942A- _ _ _ 5 - _ 000
Process, 0-5VDC non-isolated
25
24
External
Load
-
+
+
-
Load impedance 10KΩ mimimum.
25
24
Process, 4-20 mA, Non-Isolated
External
Load
-
+
IDC
+
-
Load impedance 600
Ω maximum
Figure 28 -
Auxiliary Option 5
Wiring.
Figure 29 -
Auxiliary Option 6
Wiring.