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5.5.2 Test mode switch:
In the test menu, press
to switch between normal test mode and P/F test
mode.
Normal test mode means do not setup threshold value but display optical
power directly. In this mode, the LED indicators will not light. The results are
displayed in two units: dB and dBm using dB/dBm key to switch. See Fig. 1.
Unit dBm is to display the actual power
Unit dB is to display a power value relative to reference value. In this mode,
reference value needs to be preset correctly.
P/F test mode means the measured light power comparing to preset threshold
value to determine if the measured light power meets user ’s requirement or
not. LCD will display the optical power and current state. The LED indicators
below the LCD display will also change color to match the current state of
measured light. This test mode is very useful in some special cases required.
See Fig. 2.
Mode
1. Normal test mode
2. P/F test mode
Auto off
Auto off
Fig.1
Normal Test Mode Menu (dB)
Fig.2
P/F Test Mode Menu
Summary of Contents for PROLITE-57
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