TJWENHAO TWH-200W User manual

Handheld Optical Multimeter
1．Overview
Handheld Optical multimeter is for the installation, operation and maintenance
of a fiber optic network designed accurate, durable and portable instrumentation. A
compact shape, automatic shutdown feature, wide range of optical power
measurement, accurate measurement accuracy, and user self-calibration function and
general interface design, while the linear index (mW) and nonlinear index (dBm)
display on the same screen.
Stable optical handheld multimeter can be customized to provide 1 to 4
wavelength stability of the output, not only can provide 650nm visible red light, single-mode fiber can
be measured to provide dual-wavelength 1310nm and 1550nm laser output, or provide 850/1300 /
1310/1550nm four wavelength laser output, fiber-optic project is the ideal test instrument.
2．Features
Self calibration by user himself
Rechargeable lithium battery used to reduce user costs
Linear (mW) and nonlinear index (dBm) display on the same screen
Can set the automatic shut down function
High stability multi-wavelength single-(multi) mode laser output, CW mode or modulated mode
Color LCD display
Data can be uploaded to PC
3．Specifications
Power meter parts
Measurement range -70～+3 or -50～+26
Type of probe InGaAs
Range of wave length 800～1700
Uncertainty ±5%
Standard wave length (nm) 850、980、1300、1310、1490、1550
Resolution Linear indication: 0.1% Logarithmic indication: 0.01dBm
Connector General setupuration：FC/PC SC/PC
Other setupuration：LC/FC/SC/ST Many common interface
Light source parts
Model General
setupurations 3 in 1 setupurations Other
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Handheld Optical Multimeter
Working wavelength
(nm) 1310/1550 1310/1490 650 red light source
D：850/1310/1550
E：1310/1490/1550
F：1310/1550/1625
Light-emitting device FP-LD
Optical output power
(dBm) -7/-7 -7/-7 Red light source：
1mW
0DB-7DB
Modulation CW/270/1K/2K
Type of optical fiber SM，MM
Connector FC/PC
Multi-mode output
power：
≥–20 dBm。
Other
Resolution Linear indication: 0.1% Logarithmic indication: 0.01dBm
Working temperature (℃) -16～+60
Storage temperature (℃) -25～+70
Auto power-off time (min) 10
Continuous working hours (h) more then 15 hours
Display 2.4 TFT color LED with backlight
Dimensions (mm) 190×100×48
Power supply Rechargeable lithium battery
Weight (g) 280
4．Function
Key Function
power on/off or auto-shutdown set
Menu and function selection
Enter the menu or select the current operation
exit the current operation without save
function selection, data decrease
function selection, data increase
5．Operations Guide
5.1 Power on
Press to power on，and then will display the following
interface：
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Handheld Optical Multimeter
5.2 Power off
When the meter is power on，press for 2 sec to power off.
5.3 Meter setup
(1) Enter the setup interface，select meter setup，press ，and
display the following interface：
(2) Press to select function，for example：select light source
wavelength. Press or to select sub item，for example:
select wavelength as 1490. Press to save setup and return to
setup interface，press to cancel, and return to setup interface.
5.4 Language
The instrument can be set to Chinese, English.
(1) Enter the setup interface, select language, press
，and display the following interface.
(2) Press or to select function item，if select Chinese and press ，and return to setup
interface and set language as Chinese. Press to cancel，and return to setup interface the language
will not change.
5.5 Date time
(1) Enter the setup interface, select time, press ，and display the time set interface
(2) Press to select item。or to increase or decrease value。Press to apply，
and return to setup interface. Press to cancel，and return to setup interface。When press enter，if
the time is incorrect, cursor will focus on the error. Only correct time set will apply.
5.6 Document
(1) Press at main interface，press or to move
cursor，select file item，and press to enter file interface, and
display the following interface.
(2) Press or to move cursor，to move command
item cursor. when command cursor is on “lookup”，press to
view current file results。when command cursor is on “prev” or “next”，press to page up or
down. There are "delete", "empty" commands and so on.
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Handheld Optical Multimeter
5.7 Calibration settings
Calibration settings used to set the Offset size. Displayed value is the overall power to add a value.
Enter the setup interface，select Calibration item，press to enter Calibration interface.
Press to select items. Press or to increase or decrease value by 0.01. When
selected item is “save”，press to apply。
When selected item is “default”，press to restore to default。
5.8 Data upload
Measurement results can be stored in the instrument, or stored in the instrument through the host
computer after the software uploaded to the PC. As long as the data line of a termination on the local PC
Link interfaces, the other side access to PC-USB port, open the PC software, PC software by default
settings, and then upload directly to the PC point, the data can be reached the PC.
6. Standard configurations
Name
instrument host
Rechargeable lithium battery (in the battery cartridge)
Warranty card
user Manual
Pass Certificate
Oxford soft bag
Charger
Special cleaning rod
7. Maintenance
Precautions
1. Don’t watch the output port with eyes while it is running, the laser will hurt your eyes
2. If you are not going to use the tester for long time, cover the dust-proof cap immediately to keep the
end clean, don’t expose it in air for long time, otherwise dust may gather polluting the output end.
3. After the stabilized light source works for a time, dirt or dust may gather at output end reducing
output optical power, if so, user can gently wipe the surface using cotton swab dipped with alcohol, then
remove the contaminants with dry cotton swab. If end still look dirty after doing so, please contact us
4. For any other fault, please immediately contact our technician, don’t open the cabinet of the device to
repair it by yourself, otherwise more serious problems may occur. We will not repair any product that
have been disassembled by user himself
8. Troubleshooting
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Handheld Optical Multimeter
SN Diagnosis Solution
1 Output light is found unsteady Please recharge the battery
2 The terminal of adapter is
dirty
Clean it gently with alcohol
3 The output optical power is
unsteady after startup
Pre-warm the device for 15 minutes
before using it.
9. Warranty
No parts of the product can be repaired by user himself.
Warranty period: 18 months since the date of shipment. If any product defect within the above said
period, we will repair or replace the defective product, however, in no events we will bear resonsibilities
in excess of the product’s sales price.
If any fault occurs during usage, user can first solve them according to above trouble-shooting
instructions, however, if such efforts fail, the user shall not open the cabinet of the product by himself,
he should contact our market department or local dealers.
For any quality problem arising of production defect, the manufacturer will repair or replace the
defective product free of charge, however, any damage caused by improper-operation or good product
will not be covered by the above warranty.
Notwithstanding the foregoing terms, any problem/fault caused for the following reasons are not
included warranty.
The product has been repaired or modified without the authorization of the manufacturer
The problem or fault arising of improper use, negligence or incidence.
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