5.0 Quick Start Guide
• Measurement of the power of an optical signal (dBm and W)
Turning Meter On/Off
Press the button to turn unit on.
Press the button and hold for 2 or 3 seconds to turn the meter off.
Wavelength Button
This button is used to select the wavelength. 850nm, 1300nm, 1310nm, 1490nm, 1150nm, and 1625nm.
Press the button repeatedly to step through the wavelengths. Simply select to closest wavelength to
the one you are measuring for best accuracy.
Measurement Selection Button
This button is used to select either dBm or nW between the absolute and relative measurements of
optical power. (mW is milliwatt, or 10 ˉ3, nW is nanowatt or 10 ˉ9 watt).
*Note, most customers will use dBm to measure the absolute power.
Reference Button
Press this button to save the current power value (zero the test setup). This value can be used as a
reference and will be displayed in the upper right hand corner of the LCD screen. Pressing this button
quickly will switch the function to a relative power measurement. With the reference power value
showing, the relative value will now be displayed between the current measurement and the reference
power.
Using the Meter for a simple optical power measurement
(1) Use one fiber optic jumpers to connect the output port of the light source with the detecting port of the
fiber power meter.
(2) Turn on the light source and then select the wavelength to be tested.
(3) Select (dBm) to measure the absolute optical power.
(4) The LCD display now shows the actual output power of the light source as shown in the dBm
(example: power shown may be 05.73 dBm, or -09.25 dBm).
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