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As a window film transmission meter manufacturer, Linshang Technology offers a variety of window film transmission meters with different parameters and different functions. This article mainly introduces product selection, price and frequently asked questions about the window film transmission meters.
● Notch width 0.8mm, point light source design, only test film
● Ultra-small size design
● Ultraviolet light: 365nm, visible light: 530nm
● Infrared: 940nm (LS160); 1400nm (LS160A)
● 8mm wide slot, point light source design
● Suitable for testing films, laminated glass and automobile side glass
● Ultraviolet light: 365nm, visible light: 380-760nm (in line with CIE photopic luminosity function)
● Infrared: 940nm (LS162); 1400nm (LS162A)
● 6mm wide slot, parallel light path design, display interface can be rotated in 360 °
● Suitable for testing films, laminated glass and automobile side glass
● Visible light transmittance / full transmittance / transmittance + rejection rate, three display modes can be switched
● Ultraviolet light: 365nm, visible light: 380-760nm (in line with CIE photopic luminosity function)
● Infrared: 940nm (LS163); 1400nm (LS163A)
● 20mm wide slot, parallel light path design
● Suitable for testing films, laminated glass and automobile side glass
● Adopt large-screen LCD, support 4 AA batteries and 5V power supply
● Ultraviolet: 365nm, visible light: 380-760nm (in line with CIE photopic luminosity function), infrared: 940nm
● Notch width 47mm, parallel light path design
● Suitable for testing UV and light transmission properties of various film and glass insulation
● Ultraviolet light: 365nm, visible light: 550nm
● Infrared: 940nm (LS181); 1400nm (LS180)
● Adopt wireless split type and parallel light path design
● Suitable for measuring all kinds of installed glass, such as automobile front shield, curtain wall glass, etc.
● Built-in rechargeable lithium battery and magnet for easy going out testing
● Ultraviolet light: 365nm, visible light: 550nm
● Infrared: 940nm (LS110A); 1400nm (LS110H)
● Notch width 47mm, parallel light path design, large LCD display
● It is suitable for testing the heat insulation, UV rejection and light transmission performance of various films and glass in the store.
● Ultraviolet light: 365nm, visible light: 550nm
● Infrared: 940nm, 1400nm and full band can be switched
● Test SHGC solar total transmittance (solar heat gain coefficient)
● The instrument can compare the thermal insulation performance of two glasses by the temperature difference.
● Using 150W genuine Philips infrared light source and imported temperature probe
● LS300 can display the real-time temperature in the space below the instrument and the temperature difference.
● LS301 can display real-time temperature in the space below the instrument and infrared rejection rate of glass
● LS122 spectral response range: 1000-1700nm
● LS123 spectral response range: 260-400nm
● LS122 is used to test the real-time infrared radiation intensity and infrared rejction rate of materials
● LS123 is used to test the real-time infrared radiation intensity and UV rejection rate of materials
● Equipped with infrared light source, ultraviolet light source, infrared and ultraviolet power meters
● Demonstrate the thermal and UV insulation performance of glass by simulating indoor and outdoor conditions
● Suitable for glass insulation and UV insulation performance display in various stores
● Compared with the 150W SK1150, the 250W infrared lamp used by the SK1250 has greater power and greater sense, but the actual test results are the same
● One more set of infrared reflection performance demonstration device than SK1150 kit
● Used to demonstrate the transmission performance and the infrared rays reflection performance of glass
● Suitable for demonstration of insulation glass with better reflective insulation performance
● Note: Only test the intensity of infrared radiation reflected by the heat-insulating material, not the reflectance of the material
The two bands of 940nm and 1400nm are relatively representative bands. Most of the absorption films (heat-absorbing films) have better infrared blocking effect at 940nm, while the magnetron sputtering reflection film has better blocking effect at 1400nm such as metal film and ceramic nano film. Please choose the right instrument for your own membrane category!
The metal film is produced by a magnetron sputtering process. A large amount of metal elements are added and the has a good reflection ability to the infrared film. It is insulated by the principle of reflecting infrared rays.
The absorption film is added with an infrared absorber during production and the infrared is absorbed by the film. It is insulated by the absorption principle and secondary heat radiation will be generated after the heat absorption is saturated.
Each film tested by both 940nm and 1400nm instruments will have infrared blocking rate data. Due to different production processes, the thermal insulation data of some films at 940nm will be larger than the thermal insulation data of 1400nm. Some films will have larger thermal insulation data at 1400nm.
E.g:
Vickers V70 has an official infrared rejection rate of 98%. The measurement data tested by 1400nm instrument is about 98%, while the measurement data tested by 940nm instrument is only about 88%.
The 3M Jingrui 70 has an official infrared rejection rate of 98%. The measurement data tested by 940nm instrument is about 99%, while the measurement data tested by 1400nm instrument is only about 87%.
There are too many types of membranes and the data differences between 940nm and 1400nm are also very different. Some membranes may not differ much and some membranes differ by 30-40%, so we cannot tell you the exact value.
It's all about the cost of raw materials. The cost of a 1400nm light source and receiver is much higher.
Our instrument measures the infrared rejection rate. The higher the infrared rejection rate, the higher the thermal insulation rate. Because visible light also has a small amount of heat, in the strict sense, the heat insulation rate needs to integrate visible light, infrared and ultraviolet heat insulation data. Ultraviolet heat is very small and visible light is beneficial. Therefore, infrared is the main source of heat, so the infrared rejection rate is basically equivalent to the thermal insulation rate.
The LS300 measures the real-time temperature (degrees Celsius) and the temperature difference. The price is $135. The LS301 has a function to measure the infrared rejection rate of 940nm than the LS300. At the same time, the LS301 also measures the real-time temperature value. The price is $150.
The two demo kits differ only in the wattage of the infrared light. The SK1150 lamp is 150W and the SK1250 lamp is 250W. The operation of the two kits is the same. Generally speaking, 150W is enough, but the 250W lamp shows a much larger light intensity value during the demonstration. After the material is put in, the difference in light intensity value is larger.
The parameters of the new and old models are basically the same, both of which can measure three parameters of heat insulation, UV rejection and light transmission.
The old model can only be used when plugged in. It is a digital tube display. The new model is an LCD display. It uses 4 AA batteries and has a USB interface on the instrument. It can be directly powered by a power bank or 5V charging head.
The light source of the old LS101 is a point light source, which is only suitable for films and thin glass; the new LS101 uses a parallel light path design and thick glass can also be tested.
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