LINSHANG LS108A Manuale utente
Shenzhen Linshang Technology Co.,Ltd.
3-19-2018 Page 1 of 3
LS108A lens transmission meter
Instruction manual V6.1
Test principle of LS108A is to illuminate the tested transparent substance with 850nm
infrared light source, 940nm infrared light source and 550nm visible light source. Then,
the sensors respectively detect incident light intensity of three light sources and
transmission light intensity at which they transmit the tested substance. The ratio between
incident light intensity and transmission light intensity is the light transmittance, expressed
as a percentage.
I: LS108A parameter
1. Instrument size: length 200mm × width 180mm × height 106mm
2. Test hole diameter: ￠1mm
3. Gross weight: about 1.5Kg
4. Resolution: 0.1%
5. Measuring accuracy: ±2%
6. Infrared ray: peak wavelength of 850nm and peak wavelength of 940nm
7. Visible light: peak wavelength of 550nm
8. Power supply: 5V AC/DC power adapter
II: Operations
1. Power-on self-test
Plug into the power supply and turn the power switch to the ON position. The LS108A
will firstly test and calibrate itself. After completion of self-calibration, values displayed on
three displays are all “100”, which means 100% transmittance in case of no tested
substance. During Power-on self-test process, if not all of the displayed values are
Shenzhen Linshang Technology Co.,Ltd.
3-19-2018 Page 2 of 3
“100”, and characters such as “EEE”, “88.8” or “000” appear, it means the Power-on
self-test fails, which may caused by:
A: The test slot is placed with tested material before powering on the instrument.
Remove the material and then power on the instrument.
B: There may be dust in test holes. Blow the dust with air guns.
C: Ambient light is too strong.
D: Instrument malfunction. Please return the instrument to the factory.
2. Instrumental measurements
Align holes for Light and distance sensors on cell phone lens with beam hole of the
light wavelength to be tested. The transmittance parameter of tested material will be
shown on the display of corresponding wavelength.
3. Counting statistics function of PC software
With USB interface and PC software to count the quantity, qualified rate and Judge
whether the sample is good. Please refer to the PC software and instruction manual in
USB flash disk for details.
III: Features
1. Three test holes are equipped with alignment LEDs, which are used for holes
alignment on cellphone lens during testing.
2. The instrument is specially designed for testing of infrared transmittance and
visible light transmittance of cell phone lens.
3. The instrument provides real-time dynamic self-calibration and self calibrates to
100% transmittance after being powered on.
4. The minimum size of test hole is ￠1mm.
Shenzhen Linshang Technology Co.,Ltd.
3-19-2018 Page 3 of 3
5. Stainless steel work surface design, dedicated outlook, convenient for placement
of the tested material and easy to operate.
IV: Precautions
1. When the instrument tests and calibrates itself after being powered on, there should
be no tested materials in testing position. Or else, self-calibration of the instrument
fails.
2. Avoid contacting corrosive substance and keep away from high temperature and
high humidity environment.
3. When continuously in use for a long time, data on three displays may be not “100” ,
At this point, power off the instrument, and reboot it for self-testing and
self-calibration. Measuring accuracy and normal use of the instrument will not be
influenced.
4. Occasionally in case the displayed data cannot be returned to “100” when there is
no tested material on the testing position, power off and reboot the instrument.
5. Please power off the instrument when not in use.
V: Standard packing list
No. Description Quantity Unit
1 LS108A lens transmission meter 1 pcs
2 DC5V Adapter 1 pcs
3 User Manual 1 pcs
4 Certificate / warranty card 1 pcs
5 USB flash disk with PC software 1 pcs
VI: Service
1．The meter has one-year warranty. If the meter works abnormally, please send the
whole meter to the company for maintenance.
2．Provide users with spare parts and lifelong maintenance services.
3．Provide the users with the meter inspection service for free.
4．Free technical support for long term.
Manufacturer: Shenzhen Linshang Technology Co.,Ltd.
Website: www.linshangtech.com
Service hotline: 086-755-86263411
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