EXFO MaxTester DSL - Manual (Page 20)

Setting Up the MaxTester DSL Test Set 14
Power - Calibration
The Calibration tab allows you to optimize the battery gas gauge accuracy.
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Calibration State:
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Completed displays after the calibration
procedure has been started and the DC plug was
not removed before the end was reached.
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In Progress displays when the calibration
procedure has been started but has not yet
reached the end.
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Aborted displays when the calibration procedure
has been started but the DC plug was removed
before the end.
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Idle displays after the next MaxTester cold boot.
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Gas Gauge Accuracy indicates the estimated battery
gas gauge accuracy.
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Below 10 % accuracy error is Very Good.
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Between 10 % and 20 % accuracy error is Good.
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Over 20 % accuracy error is Poor and a gas gauge calibration is needed in
order to get optimal accuracy.
The following on-screen messages may appear:
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Calibration Completed is displayed after the procedure has been started and
successfully completed.
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Calibration In Progress is displayed when the procedure has been started and
not yet completed.
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Calibration Aborted is displayed when the procedure has been started but the
DC plug was removed or a power failure occurred before the end, or if you
terminate the calibration.
To start the gas gauge calibration:
1. Select the Calibration button. Completion time is up to 20 hours depending on
the MaxTester's initial battery level and current power consumption.
2. Make sure the DC plug always stays connected and the unit is not turned off
until completion. Failing to do so will abort the procedure and previous
calibration parameters will be kept.
Note: No other activity can be performed on the unit during calibration.
Note: Going through this calibration does not affect the MaxTester's battery
capacity.