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
Connect the copper leads to the calibration source (see Figure 7-3).
Connect a length of thermocouple extension wire to the end of each copper lead and insert the
junction points into the ice bath.
Connect the other end of the thermocouple extension wires to the clamp type terminals in the
plug for the applicable input connector (J2).
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
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