Preliminary Information; Table 5-2 Equipment Needed; Figure 5-1 Input Wiring Terminals - Honeywell UDC3500 Product Manual

Input Calibration

5.3 Preliminary Information

Disconnect the Field Wiring
Tag and disconnect any field wiring connected to the input terminals on the rear of the
controller.
conne ctions
Equipment Needed
Table 5-2 lists the equipment you will need to calibrate the specific types of inputs that
are listed in the table. You will need a screwdriver to connect these devices to your
controller.
Type of Input
Thermocouple
Inputs (Ice Bath)
Thermocouple
Inputs (T/C Source)
260
R
+
Input 3
–
conne ctions
R
+
Input 2
–
conne ctions
R
+
Input 1
–

Figure 5-1 Input Wiring Terminals

Table 5-2 Equipment Needed

•
A calibrating device with at least ± 0.02 % accuracy for use as a
signal source such as a millivolt source.
•
Thermocouple extension wire that corresponds with the type of
thermocouple that will be used with the controller input.
•
Two insulated copper leads for connecting the thermocouple
extension wire from the ice baths to the mV source.
•
Two containers of crushed ice or a commercially available ice bath.
•
A calibrating device with at least ± 0.02 % accuracy for use as a
signal source such as a millivolt source.
•
Thermocouple extension wire that corresponds with the type of
thermocouple that will be used with controller input.
UDC3500 Universal Digital Controller Product Manual
+
28
Input 5
29
–
conne ctions
30
+
31
Input 4
32
conne ctions
–
33
34
35
36
Equipment Needed
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