Thermocouple - Process Technology DQ15D Installation, Operation And Calibration Manual

Thermocouple

Installation requires configuration
for the specific thermocouple used.
• The two wire thermocouple is
polarized, therefore it is
necessary to connect the negative
lead wire of the thermocouple to
the #1 terminal and the positive
lead wire to the #2 terminal to
maintain proper polarity for the
PCN 5418 sensor board.
• Connect the negative lead wire to
terminal #2 and the positive to
terminal #3 for the PCN 5419
Sensor board.
Thermocouple Calibration
Equipment needed
Optional thermocouple sensor
board needed (PCN 5418 or 5419).
A precise, NIST traceable,
thermocouple calibrator with
suitable extension leads to match
the thermocouple type used.
Warning!
Calibration procedures require the
removal of the rear cover of the
control. It also requires that power is
ON, exposing the technician to
potentially lethal voltages. Exercise
EXTREME CARE and wear tested
electrician's gloves whenever power is
on.
M-34-01
Revision - Date: 01 - 04/23/08
Calibration Procedure
Turn OFF all power.
1
Remove rear cover.
2
Remove T/C sensor.
3
Install the thermocouple
4
calibrator to terminal #1 and #2 on
PCN 5418 board, or terminal #2
and #3 on 5419 sensor board.
CAREFULLY restore power to
5
the controller, ensuring you do not
come in contact with any exposed
voltage.
Press and
6
neously and hold for approximately
6 seconds. The display will indicate
While the 0 is flashing, use
.
AC.0
to change this to 22. Press
control screen displays
Adjust the thermocouple
7
calibrator to 0.0° C (32.0° F).
Press and hold
8
second. The screen displays
Wait for display to change to
Adjust the thermocouple
9
calibrator to 250.0° C (482.0° F).
Press and hold
10
second. The screen displays
Wait for the display to reset and
display 250.0° C (482.0° F).
Turn OFF power to the control
11
and remove the thermocouple
calibrator. Reinstall the thermo-
couple sensor and the rear cover of
the control. Return the control to
service.
15
Calibration
keys simulta-
The
.
SET
.
CAL1
for one
SET
.
Hold
.
CAL2
for one
SET
.
Hold
DQ15D Manual