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+24 VDC Power System User Manual (Section 6013)
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Rev. G
92
Calibrating System Output Voltage Reading
NOTE!
THIS PROCEDURE IS NOT RECOMMENDED but may be performed to calibrate system output
voltage reading due to lead loss or at actual operating load. PERF
OR
MING THIS PROCEDURE MAY
RESULT IN INACCURATE METER READINGS.
Local MCA Control Panel Adjustment Procedure
1.
All controls are located on the MCA Interface Pad. Refer to
2.
With "SYSTEM OK" being displayed on the MCA Interface Pad, press and release the FUNCTION SET
ENTER pushbutton.
or
With "## ALARMS ACTIVE" being displayed on the MCA Interface Pad, press and release the
FUNCTION SET ENTER pushbutton. Repeatedly press and release the FUNCTION SELECT DOWN
arrow pushbutton until "FUNCTION MENU" is displayed. Press and release the FUNCTION SET ENTER
pushbutton.
3.
Repeatedly press and release the FUNCTION SELECT DOWN arrow pushbutton until "CALIBRATION
MENU" is displayed.
4.
Press and release the FUNCTION SET ENTER pushbutton.
5.
"CAL SYS = ##.##V" is displayed.
6.
Press and release the ALARM CUTOFF and FUNCTION SET ENTER pushbuttons simultaneously. The
"CAL SYS =" portion of the display flashes.
7.
Observe the value displayed. This is the system output voltage reading calibration setting. To change
this value, press and hold the FUNCTION SET YES (+) or NO (-) pushbutton. Release the pushbutton
when the desired value is displayed.
8.
With the desired calibration value being displayed, press and release the FUNCTION SET ENTER
pushbutton.
9.
“ARE YOU SURE? + -” is displayed. Press and release the FUNCTION SET YES (+) pushbutton. The
display stops flashing.
NOTE!
The system output voltage reading calibration value will not be changed and the calibration
mode will be exited if the FUNCTION SET YES (+) pushbutton is not pressed within 10 seconds of the
“ARE YOU SURE? +
-” prompt.
10.
Press and release the FUNCTION SET YES (+) and NO (-) pushbuttons simultaneously, to return to the
beginning of the MCA menu tree.