Komshine KPM-25m User manual

KPM-25m Mini Optical Power Meter User Manual
OPM interface: insert the fiber to be tested, test the optical power.
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310
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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
270HZ
λ
dBm
l0
1310
REF/dB
nm
270HZ
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
270HZ
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
270HZ
λ
dBm
l0
1310
REF/dB
nm
270HZ
λ
λ
850nm 980nm 1300nm
1310nm 1490 nm
1550nm 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.

KPM-25m Mini Optical Power Meter User Manual
Product introduction
8
Product features
9
2.5mm universal connector, suitable for
FC/SC/ST connectors
±0.2 dB accuracy
Wavelength range 850nm~1625nm
Measuring range: -70~+10dBm/ -50~+26 dBm
Manual calibration
Waterproof keys suitable for various outdoor
environments
Silicone case protection design
Equipped with LED lights to facilitate work
in dark environments
Key Function
REF/dB Increase by 0.1dB
Shut down
λDecrease by 0.1dB
Save
SC FC ST LC(Optional）
Calibration function description
6
Common fault solutions
7
Fault prompt Possible Causes Solutions
LCD display is weak Battery low Replace battery
Reboot or replace battery
Unable to boot display Battery low or
other reasons
Optical power
value is abnormal Connector failure/dirty Reconnect the connector or clean the sensor
Product parameter
10
Tips
11
Wavelength（nm） 850/980/1300/1310/1490/1550/1625nm
Measuring range（dBm） -70～+10dBm / -50~+26dBm
Connectors 2.5mm universal interface
Power Supply Alkaline battery (3AA 1.5V battery)
Resolution（dB） 0.01
Working Temperature -10~+60(℃）
Storage Temperature -25~+70(℃）
Dimensions/Weight 130x65x35mm / 180g
Operating environment altitude:
Area altitude below 2000m
Please read all instructions and warnings before
using this product. Irregular use will cause
damage to the product or personal safety.
Use environment
Packing carton, optical power meter ,
certificate of conformity, instruction manual.
Standard configuration
Press the VFL+REF/dB keys at the same time to enter the
calibration mode. Cal is displayed at the bottom of the screen. The
following operations are only valid in the calibration mode. 入 key
for downward adjustment, REF/dB key for upward adjustment. After
adjustment, press LED to save.
KPM-25m optical power meter is widely used in the
construction, maintenance, inspection and acceptance of optical
fiber communication network projects. The combination of fiber
optic power meter & light source, check continuity, and help
evaluate the transmission quality of optical fiber links. Smart
appearance, sustainable backlit display, and friendly operation
interface make you feel good about it. Provides 7 wavelengths
detection, with automatic wavelength memory function. The
ultra-wide optical power test range, precise test accuracy and new
user self-calibration function will make your work even better.
Universal interface design, support FC/SC/ST and other interfaces,
without complicated conversion. In addition, the LED lighting
function has been added to the product basis to allow it to be
carried out in a dark environment, further improvin.
Contact us:
KOMSHINE TECHNOLOGIES LIMITED
Tel : [phone]
Email : [e-mail]
Add: 2F Bldg. D Qinheng Tech. Pk. Nanjing，
JS, 210001, China.
Website ：www.KomShine.com
1) Do not store this product in high temperature, strong light
and strong magnetic fields, and do not place it in other harsh
environments such as fire sources.
2）Improper use of the product may easily cause the product
damage or may endanger personal and property safety.
3) If consumers violate the product manual and improperly
use it, the personal and property damage caused by it will
bearby yourselve, our company will not bear any legal
responsibility.
4) Non-professionals are strictly prohibited from
disassembling this product.
5) Avoid using electrical appliances or loads that exceed the
output current of this product (the circuit will be protected
and there will be no output).
6) Avoid strong physical effects, including knocking, throwing,
trampling, squeezing, etc.