Honeywell UDC 3300 사용자 설명서
4/00
UDC 3300 Process Controller Product Manual
223
7.4 Input #1, #2, or #3 Set Up Wiring
Thermocouple inputs
using an ice bath
using an ice bath
Referring to Figure 7-2, wire the controller according to the procedure
given in Table 7-3.
given in Table 7-3.
Table 7-3
Set Up Wiring Procedure for Thermocouple Inputs Using an
Ice Bath
Step
Action
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.
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.
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.
terminals 22 and 24 for Input #2. See Figure 7-2.
Figure 7-2
Wiring Connections for Thermocouple Inputs
Using an Ice Bath
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
L1
L2/N
22
23
24
25
26
27
+
–
Ice Bath
Millivolt
Source
T/C Extension Wire
Copper Leads
+
–
24174
C/J Resistor
+
–
Input 2
Input 1