4. Set Up and Calibration Procedures - Calibration
64
10260S HercuLine® Actuator Installation, Operation and Maintenance Manual
Revision 5
7/07
Step
Operation
Press
Result
2
Calibrate Zero (0%)
FUNCTION
Upper Display =
xxx
Lower Display =
ZERO
xxx = arbitrary number assigned by software
or
key
Adjust actuator output voltage using down key until value on
DVM ceases to change, then press up key until value on DVM
moves up one digit
3
Calibrate Span
(100%)
FUNCTION
Upper Display
=
xxxx
Lower Display
=
SPAN
xxx = arbitrary number assigned by software
or
key
Adjust actuator output voltage using up key until value on DVM
ceases to change, then press down key until value on DVM
moves down one digit
FUNCTION
Calibration for zero and span output values are now stored.
Slidewire Emulation Output Calibration is complete. Read meter
connected to actuator output.
Calibrate Position Sensor
ATTENTION
The Position Sensor is factory calibrated to a full span, 90 degree rotation. Under
normal operation, the position sensor does not require calibration.
NOTE: Before you perform a calibration of the position sensor, it is recommended that you first verify the
voltage output from the sensor PWA. See “
Position Sensor Operation
” in section 5 for the procedure.
Position sensor calibration may be necessary due to any of the following conditions:
•
The sensor PWA output is incorrect,
•
The sensor Printed Wiring Assembly (PWA) in the actuator has been replaced,
•
The sensor spoiler adjustment has been disturbed.
When the position sensor PWA has been replaced (or serviced), you should perform a calibration of the
sensor circuit and then store it as the motor factory calibration. Please note that performing this procedure
will destroy any previously stored motor factory calibration values. Table 27 outlines the steps to perform a
calibration to the NCS circuit.
WARNING
While the unit is powered, a potentially lethal shock hazard exists inside the case.
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