EXFO FPM-600 Power Meter - Manual (Page 38)

Measuring Power or Loss (FPM-600 and FOT-600)
32 FPM/FLS/FOT-600
Setting Pass/Fail Thresholds
6. Edit the pass/fail threshold as follows:
6a. Hold down for a few seconds. The first digit of the threshold
blinks.
6b. Clear all digits by holding down for a few seconds.
AND/OR
Select a digit to change by holding until it blinks, then
increase its value by pressing (it returns to 0 after 9). After
the last digit, all digits blink: you may add/remove the “–” sign by
pressing .
6c. While a digit blinks, hold down for a few seconds to save the
modified value (it remains in memory even when you turn off the
unit) or press
to return to the previous value without saving.
7. Press twice to exit setup menus.