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 - Honeywell DR4500A Product Manual

Input Calibration - Calibration Set Up and Wiring for PV Inputs
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
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.
Calibration source
_
Containers of
crushed ice
Thermocouple
extension
wires
_
Connector plug J2
f or inputs #1and #2

Figure 7-3 Calibration set up diagram for Thermocouple inputs using an ice bath

184 DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
Action
Copper
wires
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.
#2 #1
22089
Release M
April 2017