Honeywell DR4500A - Table 7-6 Set up Wiring Procedure for Thermocouple Inputs Using an Ice Bath; Figure 7-3 Calibration Set up Diagram for Thermocouple Inputs Using an Ice Bath

Input Calibration - Calibration Set Up and Wiring for PV Inputs
184 DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual Release M
April 2017
Thermocouple inputs using an ice bath
Refer to Figure 7-3 and wire the recorder according to the procedure given in Table 7-6.
Table 7-6 Set up wiring procedure for Thermocouple inputs using an ice bath
Step
Action
1
Connect the copper leads to the calibration source (see Figure 7-3).
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 other end of the thermocouple extension wires to the clamp type terminals in the
plug for the applicable input connector (J2).
4
Reinstall the plug into the input connector (J2) on the applicable circuit board for Input 1 or
Input 2.
#2 #1
22089
Containers of
crushed ice
+
_
_
+
Copper
wires
Calibration source
Thermocouple
extension
wires
Connector plug J2
for inputs #1and #2
MA W1
Be sure W1/MA
jumper is in position
W1 on the input board.
T/C
RTD
Be sure W3 jumper
is in position T/C
on the input board.
Figure 7-3 Calibration set up diagram for Thermocouple inputs using an ice bath