DONGGUAN LONROY EQUIPMENT CO LTD
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Visible Light Transmitter Reflectivity Haze Tester VLT VIST
1. Equipment introduction
This instrument uses tungsten halogen lamps, parallel light tubes, integral spheres, photocells, etc. to test the ratio of luminous flux before and after passing through the glass. Through a special filter, the spectrum of the tungsten halogen lamp is filtered out from ultraviolet and infrared components, and the spectrum is corrected to the relative radiation spectrum of the D65 light source, and the total transmittance of visible light in glass that meets the requirements of national standard GB2680-1994. If no spectral correction is made, it is an A light source, meeting the technical requirements of the GB5137.2-2002 "Automatic Safety Glass Optical Performance Test Method" standard. By adjusting the position of the light barrier plate inside the integral sphere and the position of the sample, the transmittance, reflectance and haze of the glass can be tested separately. If you only need to test the transmittance of the sample, you can choose our company's BTG-3S visible light transmittance tester. Except for the different test purposes, other parameters are consistent with BTR-1S.
Visible Light Transmitter Reflectivity Haze Tester VLT VIST
2. Technical Parameters
| Input power supply | Voltage Regulatory AC220V±1V 5A |
| Light Source | Standard illumination body D65 or CIE Standard A |
| Spectral range | 380-780nm |
| Lighting method | Collimated illumination, integral sphere reception (compliant with V(λ) standard value). |
| show | The instrument comes with a 4.3-inch TFT LCD screen |
| Display parameters | Light transmittance, light intensity value, zero point compensation value |
| Key button | Power, standard, test. |
| Test speed | 2S/time in single-time mode |
| Communication method | Can be connected to the computer, and use RS232 serial port to communicate DB9 female (communication cable is included randomly) |
| Measurement range | 0-100% |
| Precision | 0.01% |
| Angle between optical axis and sample normal | 5° |
| Accuracy deviation | ≤0.5% |
| Non-repeat | Test the same point of the same sample 20 times in succession. |
| Maximum and minimum values | The difference is no more than 0.5% |
| Start-up preheating time | 10-15 minutes |
| Sample size | Less than 200*200mm |
3. Usage environment
1. Usage ambient temperature: 10ºC ~ 40ºC
2. Ambient humidity: < 98 % (40ºC)
4. No obvious vibration (it is better if people cannot feel the vibration)
5. Avoid strong light and try to use it in darker places. This machine is equipped with a light-shading cloth at random