Input Wiring - Watlow 945 Series User Manual

Input Wiring

Figure 7 -
Thermocouple
Input Wiring
Figure 8 -
2 or 3 wire RTD
Input Wiring.
Figure 9 -
0 - 5 VDC Process
Input Wiring.
Figure 10 -
4-20mA Process
Input Wiring.
6
WATLOW Series 945 User's Manual
Thermocouple Input
1
945A - _ _ _ - _ 000
2
945A - _ _ _ - _ 000
3
945A - _ _ _ - _ 000
4
945A - _ _ _ - _ 000
RTD, 2 or 3 Wire
2
945A - _ _ _ - _ 000
3
945A - _ _ _ - _ 000
These input connections are also used in conjunction with T/C and RTD
sensor types when using the remote set point input.
0 - 5VDC Process or Remote Set Point Input
2
945A - _ _ _ - _ 000
3
945A - _ _ _ - _ 000
4 - 20mA Process or Remote Set Point Input
2
945A - _ _ _ - _ 000
945A - 3 _ _ _ - _ 000
+
7
-
9
(-) = Red
Jumper #5 to #6
for 2 Wire RTD
4
4
5 5
6 6
+
1
V
DC
3
-
Input impedance: 100K
+
1
I
2 DC
4-20mA process input: 249
-
3
A jumper must be
installed between
Terminal #2 and 3.
Ω
Ω
.
Install and Wire, Chapter 2