User’s Manual for Palm Optical Fiber Tester
Shineway Technologies, Inc.
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source, and the key is used to select wavelength of laser source.
[dB/dBm]
For OLT-20, press this key to switch the measurement mode between
absolute power (dBm) and relative loss (dB). Hold the key until "HELD" is displayed
(approximately several seconds) switches to
µ
W mode.
[Ref]
Press this key to display the reference value stored in memory. Hold the
key
down for several seconds until "HELD" appears in the display, and store this value in
internal memory as the reference power level. When OLT-20 is switched to dB mode, LCD
displays the difference in dB between the reference level and the current input signal.
[Loss]
Key for link testing. Press this key, OLT-20 will display loss of optic fiber at
relative wavelength; Hold this key for several seconds until “HELD” displays to start
auto-zeroing.
[Ls On]
Key to activate laser source
.
Press to activate laser source. Press
[
Fun
]
to
switch to LCD display of laser source.
[CW/Mod]
Press the key when laser source is on, OLT-20 will switch the mode of
optical power output OLT-20 provides two modes of wave outputs: normally, it is
Continuous Wave(CW) to work with the measurement of optical power or quality of optic
communication. Modulated frequency (Mod) is mainly used for identification of optic fiber.
Wave mode is displayed on the LCD.
[
]
External Power Supply Indicator. When the indicator is on, the instrument is using
external power supply.
