KPM-25m Mini Optical Power Meter User Manual
OPM interface: insert the fiber to be tested, test the optical power.
1
3
10
8
9
4
5
6
13
12
11
7
2
Optical power reference value setting
3
Optical power wavelength switching
4
LED lighting
5
Power on/Auto power off
2
dBm
l0
1310
REF/dB
nm
270
HZ
λ
dBm
l0
1310
REF/dB
nm
270
HZ
λ
1
LED lighting: flashlight lighting
2
Display: display test results and other information
3
λ key: can switch 7 test wavelengths
4
LED button: turn on/off the flashlight, press any button to turn
on the backlight
5
REF/dB key: Short press the dB to switch unit, click once
uW/dBm/dB to enter the upper clear data , press and hold
until REF is displayed on the screen, and set the current optical
power as reference value, enter the relative optical power test
mode, the screen will display the setted reference .
dBm
l0
1310
REF/dB
nm
270
HZ
λ
6
On/off key: turn the device on or off
7
wavelength
9
Auto Off
8
Frequency
10
Battery level
11
Unit
13
Numerical value
12
dBm
REF
-5.00
1310
REF/dB
nm
270
HZ
λ
dBm
l0
1310
REF/dB
nm
270
HZ
λ
λ
850
nm
980
nm
1300
nm
1310
nm
1490
nm
1550
nm
1625
nm
REF/dB
dBm
REF
-5.00
External and key function description
1
Short press the power button to turn
on machine, and automatically start the
auto-off function, the default auto-off
time is 10 minutes. If you want to cancel
this function, press and hold the power
button .when starting up. When the
power on icon disappears, it means to
cancel the auto-off function.
Enter the optical power meter
interface after booting, short press the
"REF" key to set the current power value as
the reference power, which can realize
relative optical power test (insertion loss
test) or absolute power test. After entering
the relative power test mode, the insertion
loss (dB) is displayed at the bottom of the
screen, and the screen displays the
reference value; short press the "dB" key to
switch between linear power and absolute
power display.
The units of linear power, absolute
power, and relative power are nW, dBm,
and dB respectively.
P absolute power = 10lgP linear power /
1mW.
P relative power = P absolute power-P
reference power.
On the optical power meter
interface, short press the "λ" key to
switch the measurement wavelength.
You can choose 7 different test
wavelengths, 850nm/980nm/1300nm/
1310nm/1490nm/1550nm, 850nm,
1625nm. To ensure the accuracy of the
test, the selected wavelength must be
consistent with the wavelength of the
measured optical signal
Press the LED key to control the
flashlight to turn on and off. Press
any key to turn on the backlight.
