UV transmission Meter (G-UVTM)

Transmittance is an important technical parameter for many optical products, such as glass, solar films, and laminated glass. The testing principle of the transmittance meter is to illuminate the tested material with a visible light source. Sensors detect the intensity of the incident light and the light transmitted through the material, and the ratio of transmitted light intensity to incident light intensity is the transmittance, expressed as a percentage. The transmittance meter adopts a parallel optical path design, suitable for testing thick materials, with an accuracy of up to ±1%. The light source complies with the CIE luminous efficiency function standard, ensuring traceability for metrology institute testing.

Applications

(1) Glass products: automotive windshields, tempered glass, architectural glass.

(2) Solar films: heat-insulating films, tinted films for vehicles and buildings.

(3) Laminated glass: safety glass, tempered laminated glass, decorative laminated panels.

(4) Coated glass: anti-reflective coatings, UV-protective coatings, mirror coatings.

(5) Organic panels: acrylic sheets, polycarbonate panels, transparent plastics.

(6) Quality control & inspection: production lines, material testing, exhibition demonstrations.

Standards

(1) ISO 13468 — Glass and glazing: Determination of total luminous transmittance of transparent materials

(2) ASTM D1003 — Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics

(3) GB/T 2410 — Glass in building — Determination of light transmittance

(4) EN 410 — Glass in building: Determination of luminous and solar characteristics of glazing

(5) JIS R3106 — Determination of light transmittance of glass

Technical Parameters

Features

The meter adopts a parallel light path for the light source and a condenser design for the receiver, enabling measurement of thick materials.

Equipped with a fixed stand, supporting two measurement modes: on-site measurement (e.g., automotive windshield) and fixed-point measurement in factories.

High-precision data acquisition ensures high measurement accuracy; fast speed and easy operation.

Transmittance measurement range is 0.001%–99.8%, suitable for high-transparency materials.

Applicable to testing transmittance of glass products, solar films, laminated glass, coated materials, and organic material panels, with maximum resolution up to 0.001%.

Suitable for exhibitions, production, quality inspection, and goods inspection.

Packaging List

Test Procedures

(1) Insert the sample into the measurement position, either on the fixed stand or handheld.

(2) Power on the instrument and select the appropriate measurement mode.

(3) Shine the light source through the sample; the sensors detect incident and transmitted light.

(4) The instrument calculates the transmittance as a percentage of transmitted to incident light.

(5) Record the measurement for analysis.

(6) Repeat for additional samples as required.

Maintenance

(1) Keep the light source and sensor clean; wipe with a soft cloth as needed.

(2) Store the instrument in the carrying case when not in use.

(3) Replace batteries promptly when power is low.

(4) Avoid exposure to direct sunlight or extreme temperatures during storage.

(5) Periodically verify calibration using a standard reference sample.