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Turn the Back-light ON or OFF.
5. Operation and Notes
1.1. ON/OFF
1) Press the On/Off key for a few seconds to turn on the unit
2) Press the On/Off key for a few seconds to turn off the unit
1.2. Absolute power measurement
1) Turn on the Power Meter
2)
Press the λ key to switch between the wavelengths. The default
wavelength is 1310nm.
3) Connect the light to be measured, and then result will be displayed on
the LCD screen, including Linear and nonlinear value.
1.3. Relative power measurement.
1) Select the wavelength to be measured.
2)
Under “Absolute power measurement mode”, connect to the light to be
tested.
3) Press dB key, then current power value is stored as a reference value in
dB unit. At the same time it also display the current absolute power
value and current relative value is 0dB.
4) Connect to another beam of light to be tested, display the current
relative power value and absolute power value under tested..
1.4. Special function
It has 3 kinds of working mode:
1) Factory Mode
2) User Mode
3) Working Mode
1.1.1.
Factory Mode:
This mode is responsible for the test and calibration
1.1.2.
User Mode:
Press the “λ + Light” key synchronously, and then enter
the User mode. Numeral "1" will be displayed on the top right corner.
Press the “λ + Light” key synchronously once again, it exit from the
User mode and enter the Working mode. Numeral "0" will be
