Process Technology DQ15D Installation, Operation And Calibration Manual page 10

Calibration
Calibration Procedure
Turn OFF all power.
1
Remove rear cover.
2
Ensure the 2 wire, 1000 ohm
3
RTD sensor is connected across
terminals #1 AND #2 of the
terminal block before beginning.
Remove RTD sensor.
4
Install the precision resistors in
5
place of the RTD, as shown.
RTD Calibration - Precision Resistors
in Place of the RTD Sensor
Install the jumper cable between
6
the loose end of one resistor and the
fixed end of the other resistor to
establish an input value of a single
resistor (i.e. 1000 ohms), as shown.
RTD Calibration - Jumper Cable in
Place for First Resistor
M-34-01
Revision - Date: 01 - 04/23/08
Carefully restore power to the
7
control, taking precautions not to
make contact with any exposed
voltage sources.
Press and hold
8
simultaneously 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
Press and hold
9
displays on the screen.
HoLd
Wait for to display.
CAL2
Proceed with caution to avoid
10
SHOCK hazard. Remove and
relocate one end of the jumper
cable to the loose end of the
second precision resistor for the
second resistance value (i.e. 2000
ohms), as shown.
RTD Calibration - Jumper Cable in
Place for Second Resistor
Press and hold
11
The screen displays
for the display to reset. After
resetting, the connected precision
resistors' approximate temperature
value should display (i.e. 511° F or
266° C).
Turn OFF power and remove
12
the precision resistors. Reinstall the
RTD sensor and the rear cover of
the controller. Return the calibrated
control to service.
10
and
The
.
SET
.
CAL1
for 1 second.
SET
for 1 second.
SET
WAIT
.
HoLd
DQ15D Manual