Exfo Inline Power Meter User Manual download pdf (Page 10)

Using the Optional Power Meters and VFL

6 Power Meter and VFL

Setting Thresholds and Correction Factors

You may apply a correction factor (CF) to measured power to compensate

for inaccuracies or drifts. You should change the CF after performing an

offset nulling.

where:

Power

corrected

= the corrected power value

Power

measured

= the measured power value

CF = the correction factor

For each favorite wavelength, the CF is set to 1.00 at the factory, but

allowed values range between 0.85 and 1.15.

Note: Some other products express the CF in dB, so the CF would be added to

measured power.

IMPORTANT

If you revert to factory settings, you will erase all your thresholds

and correction factors. The pass/fail status feature will be disabled

automatically.

Power

corrected

Power

measured

CF=

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 42 43

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Exfo Inline Power Meter User Manual Page 10