Input #1, #2, Or #3 Set Up Wiring; Figure 7-2 Wiring Connections For Thermocouple Inputs Using An Ice Bath; Table 7-3 Set Up Wiring Procedure For Thermocouple Inputs Using An Ice Bath - Honeywell UDC 3300 Product Manual

7.4 Input #1, #2, or #3 Set Up Wiring

Thermocouple inputs
using an ice bath
4/00
Referring to Figure 7-2, wire the controller according to the procedure
given in Table 7-3.
Table 7-3 Set Up Wiring Procedure for Thermocouple Inputs Using an
Step
1 Connect the copper leads to the calibrator.
2 Connect a length of thermocouple extension wire to the end of each copper
lead and insert the junction points into the ice bath.
3 Connect the thermocouple extension wires to the terminals for Input #1 or
Input #2. See Figure 7-2.
4
Connect a cold junction resistor to terminals 25 and 27 for Input #1 or
terminals 22 and 24 for Input #2. See Figure 7-2.
Figure 7-2 Wiring Connections for Thermocouple Inputs
Input 2
Input 1
T/C Extension Wire
UDC 3300 Process Controller Product Manual
Ice Bath
Action
Using an Ice Bath
L1
L2/N
22
+
23
–
24
25
+
26
–
27
Copper Leads
Ice Bath
10 1
11 2
12 3
13 4
14
5
15 6
16 7
17
8
9
C/J Resistor
+
Millivolt
Source
–
24174
223