Thermocouple Inputs Using An Ice Bath Or Ice Point Reference; Table 5-6 Set Up Wiring Procedure For Thermocouple Inputs Using An Ice Bath - Honeywell DR4300 Product Manual

DR4300 Circular Chart Recorder

5.4.3 Thermocouple Inputs Using an Ice Bath or Ice Point Reference

Refer to Figure 5-3 and wire the recorder according to the procedure given in Table 5-6.

Table 5-6 Set Up Wiring Procedure for Thermocouple Inputs Using an Ice Bath

Step
1 Connect the copper leads to the calibration source (see Figure 5-3).
Connect a length of thermocouple extension wire to the end of each copper lead and insert
2
the junction points into the ice bath.
3 Connect the other end of the thermocouple extension wires to the TB2 terminals on the
printed circuit assembly for the input channel being calibrated.
Figure 5-3 Calibration Set Up Diagram for Thermocouple Inputs Using an Ice Bath
148
Main PCA
Pen 2
TB1
Thermocouple
extension wires
DR4300 Circular Chart Recorder Product Manual
Action
Main PCA
Pen 1
TB2
TB1
TB2
–
R
mV source
Containers of
Copper
crushed ice
wires
TB2
24092
-
+
4/00