48
WATLOW Series 942 User's Manual Appendix
Model No.
Series 942 Model Number Information
The Series 942 Model Number, listed on your unit sticker, is defined below.
Control
Series
942 = 1/4 DIN, single input,
dual output, dual
auxiliary outputs, dual
digital displays.
Inputs Type
1 = Type J, K, T, N, C, PT 2 thermocouple
2 = Type J, K, T, N, C, PT 2 thermocouple,
RTD 1°, 4 - 20mA, 0-5VDC
3 = Type J, K, T, N, C, PT 2 thermocouple,
RTD 0.1°, 4 - 20mA, 0-5VDC
4 = Type R, S, B thermocouple
#1 Output Type
B = Solid State Relay, Form A, 0.5A
C = Switched DC, Open Collector, non-isolated
D = Mechanical Relay, Form C, 6A
E = Process 0 - 10VDC, non-isolated
F = Process 4 - 20mA, non-isolated
G = Process 0 - 20mA, non-isolated
H = Process 0 - 5VDC, non-isolated
K = Solid State Relay without contact suppression
Form A, 0.5A
#2 Output Type
A = None
B = Solid State Relay, Form A, 0.5A
C = Switched DC, Open Collector, non-isolated
D = Mechanical Relay, Form C, 6A
K = Solid State Relay without contact suppression
Form A, 0.5A
Auxiliary Outputs
0 = None
1 = Single, Mechanical Relay, 6A, Form A or B
2 = Dual, Mechanical Relay, 6A, Form A or B
3 = Single, Mechanical Relay, 6A/0 - 5VDC retransmit
4 = Single, Mechanical Relay, 6A/4 - 20mA retransmit
5 = No auxiliary output/0 - 5VDC retransmit
6 = No auxiliary output/4 - 20mA retransmit
Communications
A = None
B = Isolated RS-423/RS-422
D = Isolated EIA-485
00
9
4
0
5A
2
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