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SYA-27 (AK2800) Testing System for Visible Light Transmittance and Solar Heat Gain Coefficient of Architectural Glass

Its stable and reliable quality, precise measurement capabilities, and user-friendly operation give it broad application prospects in the field of architectural glass inspection. The system supports multiple data output formats and incorporates robust quality-control features, enabling it to meet the diverse needs of various users.

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Building Energy-Efficient Material Testing Equipment

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E-mail:

lbt@lbt.ltd

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+86-15102211717

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SYA-27 (AK2800) Testing System for Visible Light Transmittance and Solar Heat Gain Coefficient of Architectural Glass

Description

Product Introduction

The architectural glass visible‑light transmittance and solar heat gain coefficient testing system (JP‑AK3600) employs advanced optical and electronic technologies, complies with numerous international and national standards, and features ultra‑low stray light and high‑precision temperature control. Its stable, reliable performance, precise measurement capabilities, and user‑friendly operation give it broad application prospects in the field of architectural glass testing. The system supports multiple data‑format outputs and incorporates robust quality‑control functions, enabling it to meet the diverse needs of various users.

Reference standard:

ISO 9050 “Glass in building — Determination of visible light transmittance, direct solar transmittance, total solar transmittance, ultraviolet transmittance, and related window glass parameters”;

ISO 9050 “Glass in building — Determination of light transmittance, direct solar transmittance, total solar transmittance, ultraviolet transmittance, and related gloss coefficients”;

JGJ/T 151, “Technical Code for Thermal Calculation of Building Doors, Windows, and Curtain Walls.”

Key features:

1. Robust instrument performance: An exceptionally high‑quality optical system, an advanced electronics platform, and a state‑of‑the‑art mechanical design ensure ultra‑low stray light of 0.010%T, high‑precision PID temperature control, and 24‑bit voltage digital sampling.

2. Stable and reliable quality: The dual-beam dynamic feedback proportional‑recording photometric system ensures baseline stability, while key components such as the deuterium lamp and photomultiplier tube are all imported, guaranteeing the instrument’s stability, reliability, and long service life.

3. Precise Measurement: Utilizing a high-quality imported holographic grating, stray light in the instrument is further reduced, ensuring more accurate analytical results.

4. Easy and Efficient Human–Machine Interaction: The JP‑AFL25 series of intelligent architectural glass, designed for the Windows environment, features Chinese-language software that allows users to set parameters such as visible light transmittance, solar shading coefficient, and hemispherical emissivity. It offers a wide range of instrument control and operational functions, is simple to use, highly flexible, and efficiently meets users’ analytical needs.

5. Excellent scalability: The reflective optical integrating sphere can be equipped with optional specialized accessories, including a dedicated reflectance device for measuring the solar shading coefficient of architectural glass, significantly broadening the instrument’s range of applications.

6. Simple and convenient equipment maintenance: The unique plug-in tungsten and deuterium lamps eliminate the need for optical alignment during lamp replacement, making instrument setup and maintenance even more…

Simple and convenient: a vacuum pressure tester is used to inspect hydraulic fluids.

7. Logging Function: Automatically records user actions; log files are stored in a more reliable database format; administrators can manage the logs.

Perform categorized browsing and other processing.

8. It employs an integrated optical and hemispherical-emission testing system, offering high cost-effectiveness and ease of use.

9. Quality Control Function: Measurement data can be monitored according to user-defined settings; the system will display a warning message for data that falls outside the control limits.

Pause, apply color coding, or automatically remeasure.

10. Report Output Function: Enables data sharing with other systems; allows saving measurement results in Microsoft Word, Microsoft Excel, and text file formats; supports customizable report formatting; and provides a preview of the printed report before output.

Technical Specifications:

Photometric Project	Indicator
Detection method	Optical measurement method
Optical wavelength range	190–2800 nm
Wavelength accuracy	±0.3 nm (automatic calibration upon startup)
Wavelength repeatability	≤0.1 nm
Automatic spectral bandwidth	1, 2, 5, 10, 50 nm
Stray light	< 0.01% (220 nm, Nal; 340 nm, NaNO2)
Light Source Conversion	Automatic switching (can be set arbitrarily within the 380 nm to 1000 nm and up to 2800 nm wavelength ranges)
Optical Test Accessories	Mirror Test Apparatus
Luminosity range	-4.0 to 4.0 A
Photometric accuracy	±0.002 A (0–0.5 A)
Photometric accuracy	±0.004 A (0.5–1 A)
Photometric repeatability	±0.3%T (0–100%T)
	0.001 A (0–0.5 A)
	0.002A (0.5–1A)
Photometric baseline flatness	±0.001 A (190–1000 nm)
Photometric baseline flatness	±0.005 A (1000–2800 nm)
Photometric baseline drift	0.0004 A/h (500 nm, 0 A, after warm-up)
Noise	±0.0004A
Test metrics	Ultraviolet transmittance and reflectance;
	Visible light transmittance and reflectance;
	Direct transmittance and direct reflectance of solar radiation;
	Direct solar absorptance and total solar transmittance;
	Solar heat gain coefficient, shading coefficient;
	Solar irradiance ratio, total solar infrared thermal energy irradiance ratio;

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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SYA-27 (AK2800) Testing System for Visible Light Transmittance and Solar Heat Gain Coefficient of Architectural Glass

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Address:Tianjin Jinghai Economic Development Zone

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