Setting The Range And Engineering Units - Honeywell XYR 6000 User Manual

OneWireless™ Series User Manual
3. 2BPreparation
0.
3.6

Setting the Range and Engineering Units

Position Sensor with NO shaft restoring force (Shaft Code A, B, N):
The WCX valve position sensor with NO shaft restoring force is calibrated at the factory to a range of 0 %
to 100 % over a 250° span. However it is possible to set the range or rescale the sensor's engineering
units to give an output within the particular range of the application (i.e. -125° to +125°) (see range setting
below).
Position Sensor with shaft spring return force (Shaft Code C, D, M):
The WCX valve position sensor with shaft spring return force is calibrated at the factory to a range of 0
% to 100 % over a ±90° span. However it is possible to set the range or rescale the sensor's engineering
units to give an output within the particular range of the application (i.e. -45° to +45°) (see range setting
below).
There are options in Wireless Builder to restore calibration and clear calibration. Do not use the Cal
Clear or Cal Restore options as this may result in incorrect sensor output readings and require the unit to
be returned for factory calibration.
Range Setting:
Calibration units (CAL_UNIT) can be set from wireless builder. This determines what measurement units
the output of the sensor will be display. The choices for the WCX Series are:
Percent
Deg.
Volts dc
The WCX valve position sensor input shaft is connected to a potentiometer through a slip clutch, limiting the
usable output range to 250 degrees. When rotated past 250° the output of the sensor will remain constant.
This is depicted as a "no change zone" on the below drawing.
14 Honeywell Sensing and Control
Percent of max rotation (Default)
Degrees of rotation
Internal potentiometer voltage
max range 0 % to 100 %
Max range 250° (may be 0° to 250° or -125° to +125°, or
-45° to +45° for example)
Max range 0.0 V to 1.7 V nominal
This is only used for factory calibration
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