UV400 tester

LS108G spectacle lens tester Instructions V1 One: Overview LS108G test principle is the use of an ultraviolet light source and visible light irradiation test transparent material, sensors detect the incident light intensity are two kinds of light sources and light intensity measured through a transparent substance after the transmitted light intensity and transmittance of the incident light intensity ratio is expressed as a percentage. LS108G professional spectacle lenses for light transmittance and ultraviolet transmittance, and calculate the lens' maximum wavelength UV barrier. " If the maximum UV wavelength of a sample lens barrier is displayed as 368nm, it indicates that this lens blocks the ultraviolet wavelengths less than 368nm and 368nm UV wavelengths greater than start through. (Ultraviolet wavelength range is 200nm --- 380nm). Two: LS108G parameter 1. Instrument Dimensions: length 200mm × width 180mm × height 106mm; 2. Instrument Weight: about 1500 g; 3. Resolution: 0.1%; 4. Accuracy: better than ± 2% (colorless homogeneous translucent material), manufactured using a standard template detection better than ± 1%; 5. UV: peak wavelength of 400nm; 6. Visible: peak wavelength 550nm; 7. Power supply: 9V AC / DC power supply, can also be a portable plug-in lithium battery. Three: Instrument Operating LS108G spectacle lens tester professional spectacle lenses for UV and visible light transmittance, measured as follows: 1: Plug in the power, turn on the tester's power switch. First instrument self-test and self-calibration, since the calibration is complete, visible and ultraviolet light display window shows value of "100", indicating no analyte transmittance was 100%. "The biggest barrier UV wavelength" window displays a value of "0" indicating that there is no barrier against UV. 2: The material to be tested into the test position. Glasses shown below test data, light transmission rate of 93.8 percent, at 400nm UV transmittance of 58.5%, the maximum wavelength of UV blocking 371nm, indicates full UV blocking glasses only to 371nm. Four: Instrument features 1. UV transmittance analyzer, visible light transmittance meter (light meter), the maximum wavelength of UV blocking test. 2. Professional permeability test for ophthalmic lenses; 3. The instrument has a real-time dynamic self-calibration function, boot automatically after calibration to 100% transmission; 4. minimum test object size ￠ 3mm. 5. Stainless steel desktop design, attractive appearance, which will help the measured object is placed and easy to operate. Five: Use the steps and precautions. Instrument connected to a dedicated power supply, keep the test location is empty, turn the machine off; 2. The analyte into the test position; 3. When not in use, turn off the power supply; 4. Boot instrument self-test and self-calibration, test location must be empty or can not complete the self-calibration; 5. Avoid contact with corrosive materials, away from heat and humidity of the environment; 6. When long continuous use, due to the luminous efficiency LED light source (LED light source temperature, the efficiency decreases) reasons, may result in two windows data can not be displayed as 100, then turn off the power to the instrument, and since re-POST calibration, does not affect the measurement accuracy and proper use; 8. May occasionally occur without test substance, the display data can not return to 100, can be shut down immediately restart the instrument; six: Service manufacturer: Lin, Shenzhen, Technology Co., Ltd. Website: www.lstek.cn product Web site: http: //www.lstek.cn/Product/LS108G.html Tel: 0755-27860706 / 13528820043 Contact: Chen