Operation

3.2.12Meter Calibration Screen

Go to the Master Menu and move the highlighted cursor to METER CALIBRATION. Press the Select pad and the Meter Calibration screen is displayed.

The Meter Calibration screen enables a Liebert field-service engineer to adjust the calibration of the UPS metered functions at each cabinet. Access to these settings is limited by the Security Access con- trol.

NOTE

Bypass volts are calibrated only at the System Control Cabinet (SCC). Input amps, DC volts, DC amps and temperature are calibrated only at the UPS modules.

! CAUTION

Meter calibrations are factory-set and should not require adjustment. Contact Liebert Global Services for meter calibration.

! WARNING

Do not attempt to calibrate meters without adequate training. Meter calibration requires special test equipment, access to test points in sensitive circuitry and exposure to hazardous voltage.

Figure 49 Meter calibration screen

SECURITY ACCESS

METER CALIBRATION

UP: CURSOR UP

DOWN: CURSOR DOWN

SELECT: CHOOSE

 

 

D.C. VOLTS

 

 

 

D.C. AMPS

PHASE A-B

INPUT VOLTS

PHASE A-B

OUTPUT VOLTS

INPUT VOLTS

PHASE B-C

OUTPUT VOLTS

PHASE B-C

INPUT VOLTS

PHASE C-A

OUTPUT VOLTS

PHASE C-A

INPUT AMPS

PHASE A

OUTPUT AMPS

PHASE A

INPUT AMPS

PHASE B

OUTPUT AMPS

PHASE B

INPUT AMPS

PHASE C

OUTPUT AMPS

PHASE C

 

 

TEMPERATURE

 

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Image 67
Liebert 1000kVA manual Meter Calibration Screen, Meter calibration screen