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MODEL:NF-902
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INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL
Optical Light Source
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RE V1. 0
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Contents
1. Brief introduction ------------------------------------------------ 1
1.1 Summarize ------------------------------------------------------- 1
1.2 Product features ------------------------------------------------ 2
1.3 Technical parameters ------------------------------------------ 2
1.4 Main applications ----------------------------------------------- 2
2. Functional description ---------------------------------------- 3
2.1 Startup and shutdown ------------------------------------------3
2.2 Auto-off activation and shutdown ---------------------------- 3
2.3 Backlight activation and shutdown -------------------------- 3
2.4 Description for control panel ---------------------------------- 3
3. Handling instruction for NF-902 Optical light source --- 4
3.1 Description for the information on LCD -------------------- 4
3.2 Ope r a t i o n --- - - - - - - --- - - - - - ---- - - - - - ---- - - - - - --- - - - - 5
4. Maintenance ---------------------------------------------------- 6
4.1 Probe cleanness -------------------------------------------- 6
4.2 9V battery replacement ------------------------------------ 7
4.3 Calibration and measurement ------------------------------ 7
4.4 Transportation ------------------------------------------------- 7
5. Common faults and removal methods ----------------- 8
6. War r anty - ---- - ---- ----- ----- ----- ---- - ---- - ---- - ---- - ---- 8
7. Standard configuration -------------------------------------- 8
Diagram of series Products-------------------------------------------9
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1. Brief introduction
Model NF-902 is used as an optical fiber light source, along with
a suitable meter such as the NF-906 is used to determine the loss of
an optical fiber cable.
LCD screen
Key field
1.1 Summarize
Optical light source NF-902 providing 1310/1550 nm wavelength
for single made fiber,together with optical power meter it acts as
a perfect solution in fiber optical field meter .
1.2 Product features:
◆ Providing 2 wavelengths output and wavelengths can be
selected according to customers needs.
◆ CW,0HZ modulation output at 650nm , and CW,270Hz,1KHz,
2KHz modulation output at other wavelengths.
Optical interface
Hanging hole
Body
Sheath
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◆ High stability of the output power
◆ FC/SC/ST or other type connectors can be required.
◆ Compact size and decent appearance
◆ Large LCD, easy operation with LCD backlight.
1.3 Technical parameters
Mode l
NF-9 02
Wav el ength(nm)
Emit te r Typ e
Modu la ti on Frequenc ie s
Fibe r Type
Outp ut S ta bility(dB m)
Opti ca l co nnector
Oper at in g Temp er ature(℃)
Stor ag e Temp er at ure(℃)
Auto ma ti c Shutdown Tim e( min)
Batt er y Se rving Time(h )
Over al l Di mension(m m)
Powe r su pp ly
Weight(g )
CW / 2Hz (6 50 )/ 270Hz,1K Hz ,2 KHz
FC(S C/ ST can b e in terchange ab le )
9V Bat te ry，A C Adapter
1.4 Applications
1.Provide light source for optical power meter.
2.2 wavelenghts output:1310,1550.
3.A fast,stable and cost effective test solution.
2
1310 ,1 55 0
FP-L D
SM、MM
±0.04 @2 0℃@1 5min
-10~ +6 0
-25~ +7 0
15
60
185×10 5×50
350
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2. Functional description
2.1 Press button to startup and shutdown
2.2 Auto-off function
The unit will turn off after 15mins if non-operation.
2.3 Backlight
The backlight is on when the tester is turned on and when any key
is pressed.The backlight times out after approximately 30 seconds
of inactivity to conserve battery cover.
2.4 Description for front panel
(1)Power Key
Used to turn on the tester, if press it by 2s continuously,
the meter will be turned off.
Auto-off function selection: this key can be used to activate or
shut down the Auto-off function, in addition, if there is no operation
over 15mins, the power meter will be off automatically.
(2)wave key
λ
For wavelength selection.
(3)Mode key
Modulation control output and modulated
light output can be
selected by pushing Mode key . When
modulated light output
is selected, a dot appears in LCD.
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Lig ht
Light S ou rce
CW
Optic al
λ
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3. Handling instruction for NF-902 optical light source
3.1 Description for the information on LCD
After press power key to start the meter, the following
information will be shown on LCD:
(1)if the meter is supplied by battery, the icon at the left bottom
will be ON. With the reduce of electric amount of battery, the
display segment of battery becomes less and less till empty.
(2)When connect with AC adapter, a icon will be lightened at
the middle of screen, at the same time, the electric amount icon
is ON as well.
(3)At the left lower position, it is a icon. After start,
the Auto-off function is activated simultaneously and the icon is
lightened as well, but if there is no operation, the meter will be
shut down 15mins later.
(4)At the middle display-area of screen, the value of wavelength
will be displayed, the unit is nm.
(5)At right upper display-area of screen, shows reference
frequency value, the unit is Hz.
“Auto-off”
4
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3.2 Operation
1. Connect the tested bridle wire to light source and power meter
as shown in the following fig:
Light Source Power Meter
2. Turn on the light source to enter working mode and press the
wave key select wavelength to be tested.
3. Press the mode key , choose the 0Hz,270Hz,1KHz or
2KHz light output.
4. Turn on the fiber power meter and select specified wavelength.
5. Press the power key to turn the tester off.
Attention:
1) once not using for a long time,please take out the battery.
2) If the Handheld Light Source is not used for a long time,
the light output port must be protected with the dustproof hat.
3) Do not look into Handheld Light Source adapters directly
when light source is on, laser output does harm to your eyes.
λ
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4．Maintenance
As a high sensitive electric ＆ optical instrument, this optical power
meter must be maintained carefully so as to acquire high precision
and flexibility, thus, please pay close attention to the following
items :
◆Before use, clean the optical fiber connector all the time
◆Away from dust
◆Only a dry and clean place is allowable to store this instrument
and keep away from direct sunshine.
◆Over temperature or large temperature variation shall be avoided.
◆Away from unnecessary impact or vibration.
◆If any liquid splashed onto the surface or the inner of instrument,
cut off the power supply and restart it till dried completely.
4.1 Probe cleanness
Clean the probe of optical power meter regularly.
1.Open the dustproof cap
2.Screw off the adapter of power meter
3.Use 2.5mm special cotton swab with some anhydrous alcohol
to clean the surface of probe slightly.
WARNING: when clean the probe of optical power meter, it is
forbidden to use any hard thing to touch the surface of probe
in case cause damage to probe; in addition, keep away from a
strong force to aviod crack of probe. Otherwise, the accuracy
of measurement value will be reduced, even failed to carry out
any measurement.
ATTENTION: when the optical power meter is not operated,
cover the dust-cap to keep the optical power meter clean.
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4.2 9V battery replacement
For NF-902 Optical light source, available to be supplied by single
9V battery. Open the back cover to install or take out the battery.
When install or take out the battery, the following information may
be helpful for your operation:
◆When the battery energy is lower or no 9V battery installed,
a icon will be on screen.
◆Only an eligible 9V battery can be engaged
◆If no use for a long time, take out the 9V battery in case of
corrosion and damage to internal components.
4.3 Calibration and measurement
Under proper conditions, if this meter can be used in a right way,
a better performance can be guaranteed.
In order to guarantee the performance, it is strongly suggested that
a calibration per year should be implemented.
If there is deviation, please calibrate it again.
4.4 Transportation
When under transportation, keep the meter at the specified
temperature range. And it is suggested the operation should
be done as the follows:
◆Only the original packing material can be used
◆Away from high humidity or obvious temperature variation
◆Away from direct sunlight
◆Away from unnecessary impact and vibration.
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5. Common faults and solutions
Comm on f au lts
Inaccurate
measure result
Unable to start or
no screen display
Dim LCD display
Some variation of
optical power
when initial start
Lower output power
of light source
Poss ib le r eason Solu ti on
Mismatch wavelength
of light source
Inadequate 9V battery
Inadequate battery
No preheating for
optical maser
Unclean connectivit y
port of light source
Check the correct wavel ength
is selected
replace new battery
Use power adapter or
change the battery
Turn on the light source and
activate the operatin g wave
-length, then carry out m easure
-ment after 30min prehe ating
Clean the connectivit y port
completely
6. Warranty
NF-902 is warranted against defects in materials and workmanship
for a period of one year from the date of purchase.
NOTE: if the damage caused by improper operation or wrong
cleanness of optical connector, our company will charge for the
maintenance or replacement.
7．Standard configuration
(1). NF-902 Handheld light source ------------------- 1 piece
(2). Operation Manual----------------------------------- 1 piece
(3). AC Adapter------------------------------------------- 1 piece
(4). 9V battery---------------------------------------------1 piece
(5). Cotton swab------------------------------------------ 1 piece
(6). Toolkit-------------------------------------------------- 1 piece
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NF-306 NF-868 NF-820 8
NF-268
NF-468 L N F- 34 68 NF8108-M
NF-388 NF-903 NF-906 A
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NF-806 R
NF-816
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SHENZHEN NOYAFA ELECTRONIC CO.,LTD
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