Resistance Signal; Voltage Signal - Process Technology DQ15D Installation, Operation And Calibration Manual

Calibration
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 or
200 ohms), as shown.
Establishing Second Resistor Value
Press and hold
11
second. The screen displays
Wait for the display to reset. After it
resets, the approximate temperature
value for the connected precision
resistors should display (i.e. 511° F or
266° C).
Turn OFF power to the control-
12
ler and remove the precision
resistors. Retain for future use.
Reinstall the RTD sensor and rear
cover of controller. Return the
calibrated control to service.
M-34-01
Revision - Date: 01 - 04/23/08
for one
SET
.
Hold

Resistance Signal

This section describes how to
configure and calibrate DQ15D to
measure pure resistance.
Equipment needed
Refer to the calibration procedure
for the 2 wire RTD sensor for
equipment needed.
Calibration Procedure
From the setting configuration
1
mode, set the U1 sensor type
parameter to 12. See
(Setup).
Follow the Calibration Proce-
2
dure for a 2 wire RTD sensor.
DQ15D will then measure pure
resistance from 0-1000 ohms.

Voltage Signal

The DQ15D control measures DC
voltage and compares that
measurement with a standard set
of values in the control memory.
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. Always
Exercise EXTREME CARE and wear
tested electrician's gloves when power
is on.
12
Configuration
DQ15D Manual