Getting Started with Your PON Power Meter
PON Power Meter 25
Setting Parameters
Nulling Electrical Offsets
Temperature and humidity variations affect the performance of electronic
circuits and optical detectors. Nulling the electrical offsets eliminates these
effects. Your unit has been designed not to require offset nulling under
normal operation, but you should perform it whenever environmental
conditions change significantly or when measuring very low power values.
Note: Factory-defined values will be reinstated when you turn the unit off.
IMPORTANT
If light reaches the detector when nulling offsets, Light Detected appears on the
display and the nulling is not performed. You will need to tap Retry or Cancel to
return to the previous display.
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