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Fiber Optic Test Meters • Operation 6
Power Up the FPM 101
The power button provides two functions:
• Press and hold the power button, , for a short time until the display lights up to turn
the meter on. When the meter is on, press and release the button to turn the FPM 101
off.
• Press and hold the button when the meter is on to disable/enable the auto-off feature.
Auto-off powers down the unit after five minutes of inactivity.
• If the auto-off feature is enabled, (default), press and hold the power button until
HELD pON appears on the display.
• If the auto-off feature is disabled, press and hold the power button until HELD AOFF
appears on the display.
Wavelength/Backlight Button
The wavelength/backlight button,
λ
provides two functions:
• Press and hold to toggle the backlight on or off.
• To manually select a wavelength, press and release to cycle through the wavelengths as
shown.
850 nm >1300 nm >1310 nm >1490 nm >1550 nm >850 nm ...
NOTE: When using the FLS 101 set to a WAVE ID output, the FPM 101
automatically switches to the WAVE ID wavelength. The WAVE ID indicator
appears on the display and the wavelength is displayed in the calibrated
wavelength indicator field.
WAVE ID
nm
µW
Hz
nm
dB dBm
µW
dB dBm
WAVE ID
nm
µW
nm
dB dBm
µW
dB dBm
Single WAVE mode, or
Tri WAVE mode - second page
Single or Dual WAVE ID Mode
REF
REF
Calibrated
Wavelength
Indicator
Calibrated
Wavelength
Indicator
WAVE ID
Indicator
dB/dBm/μW Button
The dB/dBm/uW button,
dB
dBm
, provides two functions:
• Press and release to toggle display readings between insertion loss (dB) or power (dBm).
• Press and hold to view power in microwatts (μW).
WAVE ID
nm
µW
nm
dB dBm
µW
dB dBm
Single and Dual WAVE ID mode
REF
Power (µW)
Power (dBm) or
Insertion Loss (dB)