KJ-626D Haze Transmittance Meter

Product Features

● It supports three standard illumination sources—CIE-A, CIE-C, and CIE-D65—enabling precise measurement of haze and total transmittance, making it suitable for various testing standards and application scenarios.

● The compensation-based testing method effectively mitigates measurement errors, further enhancing the accuracy and reliability of test results while ensuring data authority.

● The open measurement area allows flexible adaptation to samples of various sizes and specifications without additional cutting, significantly enhancing testing convenience.

● Equipped with a 5.0-inch TFT HD display, the system features a user-friendly interface and straightforward operation, significantly reducing the learning curve for operators.

● It supports both vertical and horizontal placement modes, allowing flexible switching based on sample morphology for stable sample positioning and testing.

● Equipped with high-quality LED lighting sources, it boasts an extended service life—no replacement required for ten years—which significantly reduces equipment maintenance costs and downtime losses.

● No preheating is required; the test can be initiated immediately after startup calibration. The testing process is rapid, delivering accurate results in just 3 seconds, significantly improving detection efficiency.

● The device features a compact size and lightweight design, making it easy to carry and move, and suitable for flexible use in various scenarios such as laboratories and production workshops.

Applications

● Plastic Industry: Testing the light transmittance and haze of various transparent plastic sheets and films (such as PET, PC, PMMA, PVC, etc.) is essential for quality control during production, ensuring that the products meet standard requirements for light transmittance and transparency.

● Glass Industry: Testing of haze and light transmittance for ordinary glass, tempered glass, optical glass, coated glass, etc., to evaluate glass transparency, cleanliness, and optical performance. Suitable for glass product inspection in the fields of architecture, electronics, and optics.

● Film Industry: Testing the light transmittance and haze of transparent films such as packaging films, optical films, and protective films; ensuring optimal light transmission performance and visual clarity to guarantee product quality in downstream applications like packaging and electronics.

● Optical Devices Industry: Conduct haze and transmittance testing on optical lenses, lenses, acrylic optical components, etc., to ensure that the optical performance of these devices meets industry standards, suitable for applications in instrumentation and electronic equipment.

● Building Materials Industry: Testing the light transmittance and haze levels of transparent building materials (such as solar panels, durable panels, and transparent tiles) to evaluate their light transmission performance and practical effectiveness, thereby providing a basis for quality control of building materials.

● In the fields of research and quality inspection: Universities and research institutions conduct studies on transparent materials; corporate quality inspection departments perform batch testing on raw materials and finished products; and third-party testing agencies provide specialized testing services to meet diverse inspection requirements.

● Other applications: Testing the haze and light transmittance of products such as transparent resins, acrylic products, and transparent coatings, suitable for quality control and R&D scenarios in various industries including chemical, electronics, and packaging.

Design Criteria

The product strictly complies with multiple national and international standards, ensuring the compliance, authority, and universality of the testing data. The specific standards met are as follows:

● GB/T 2410-2008 Determination of Light Transmittance and Fogidity of Transparent Plastics

● ASTM D 1003: Determination of Transmittance and Fogidity for Transparent Plastics

● ASTM D 1044: Determination of Turbidity After Corrosion of Transparent Plastics

● ISO 13468: Determination of the total light transmittance of transparent plastic materials

● ISO 14782: Determination of Blurriness in Transparent Plastic Materials

● JIS K 7361 Plastic products. Determination of the total luminous transmittance of transparent materials. Part 1: Single-beam instrument

● JIS K 7136: Testing Standard for Turbidity of Transparent Materials

Technical Parameter

Illuminant	CIE-A、CIE-C、CIE-D65
Measurement Parameter	Haze (HAZE), Transmittance (T); Spectral response: CIE spectral function Y/V(λ)
Optical Path Structure	0/d; Lighting and sample aperture dimensions: 16.5 mm/21 mm
Range	Transmittance: 0–100%; Turbidity: 0–30% (absolute value), ≥30% (relative value)
Resolution ratio	Fog density resolution: 0.01 units; Transmittance resolution: 0.01 units
Repetitiveness	Repeatability of cloudiness: ≤0.1 units; repeatability of transmittance: ≤0.1 units
Sample size	Thickness ≤150 mm
Storage data	20,000 values
Computer Interface	USB interface
Power Specification	DC24V
Working temperature	+10 – 40 °C (+50 – 104 °F)
Storage temperature	0 – 50 °C (+32 – 122 °F)
Volume (length × width × height)	310mm×215mm×540mm
Random Accessories	Software USB drive, film fixture, standard haze film, dust-proof cover

Operation Guide

Power-on calibration:

KJ-626D Haze Transmittance Meter

Structural unit:

KJ-626D Haze Transmittance Meter

Accessories Introduction:

● Black is the sample fixture

● White is the standard piece

● Blue is the dust cover

● Jig: Secure the test film or sheet using a jig.

● The thin clip is placed face down in the test port for testing.

● The sample can also be directly laid flat on the test port for testing.

KJ-626D Haze Transmittance Meter

Matters need attention:

● Standard film: The standard film has fixed haze and transmittance values.

● The new machine requires one test after startup and calibration; the test is complete.

● The value is the predetermined value for the standard sample (which can be written on the calibration sample).

● This step is used later to verify whether the machine test accuracy has changed.

● Calibration samples should not be wiped with alcohol or other reagents.

● Store in an invisible light location

● Dust cover: Cover the equipment with a dust cover during testing to prevent dust from entering the integrating sphere (dust inside the integrating sphere is difficult to remove later and requires return to the factory for cleaning).

Test Interface:

KJ-626D Haze Transmittance Meter