Watlow Series 965 - Manual (Page 8)

Install and Wire, Chapter 2
8 WATLOW Series 965 User's Manual
Input Wiring
DIP Switch
Orientation
0-5V Î (dc) Process Input
Figure 9 -
0-5V
Î (dc) Process
Sensor Input Wiring
Figure 8 -
Thermocouple
Sensor Input Wiring
Input impedance: 10K
Ω
Thermocouple Input
Extension wire for thermocouples must be of the same alloy as the thermo-
couple itself to limit errors.
Sensor Installation Guidelines
We suggest you mount the sensor at a location in your process or system
where it reads an average temperature. Put the sensor as near as possible to
the material or space you want to control. Air flow past this sensor should be
moderate. The sensor should be thermally insulated from the sensor mounting.
See Chapter 4 for more information on DIP switch location and orientation.
DIP Switch
Orientation
ç
CAUTION:
Process input does
not have sensor
break protection.
Outputs can remain
full on.
T/C
+
-
3
5
V
+
-
3
5
d c
ç
NOTE:
When an external
device with a non-
isolated circuit
common is con-
nected to the 4-
20mA or dc output,
you must use an
isolated or un-
grounded thermo-
couple.