Benchtop UV Accelerated Weathering Tester

Masaüstü UV Hızlı Yaşlandırma Test Cihazı

Single-sided benchtop UV weathering tester. One lamp bank with 4 horizontal fluorescent UV lamps (600 mm class), closed-loop irradiance control with sensor feedback, condensation and water spray stages. Lamp options UVA-340, UVB-313 or UVA-351; 7-inch touchscreen PLC/HMI, Ethernet data output. For comparing colour and surface change of textiles, plastics, paper and coatings.

Model technical data

Instrument type: single-sided benchtop UV weathering tester.
Principle: fluorescent UV, temperature and moisture cycles.
Lamp arrangement: 4 horizontal fluorescent UV lamps in one bank; 600 mm (nominal class).
Lamp options: UVA-340, UVB-313 or UVA-351; lamp type is specified with the method at order.
UV irradiance: closed-loop control with sensor feedback.
Operator interface: 7-inch touchscreen PLC/HMI.
Moisture stages: condensation and water spray.
Specimen mounting: one side; specimen holders independent of the cover.
Data interface: Ethernet data output.

Physical specifications and utilities

Electrical supply	Approx. 220–240 V AC, 50/60 Hz, single phase; build-dependent.
Power / connected load	Approx. 800–1500 W connected load for preliminary planning.
Overall instrument dimensions	Approx. 900 × 550 × 650 mm (W × D × H).
Instrument weight	Approx. 50–80 kg net.
Gross / shipping weight	Approx. 70–115 kg gross; estimated packing allowance.
Interfaces	Data interface: Ethernet data output.
Lab requirements	Ventilation; suitable purified water and drain for condensation / spray options.

Dimension order and approximate values are stated in each row. Packaging data are separate from instrument dimensions and net mass. Approx. rows are preliminary engineering estimates based on comparable equipment and function/capacity; they are not verified manufacturing measurements or standard requirements. Installation and shipment are finalised against the approved drawing and nameplate. Estimate scope: base product / one unit; external computer, bench and auxiliary plant excluded.

Specifications, dimensions, and power requirements are approximate and subject to change without prior notice for continuous design improvements.

Product technical specifications and images may vary according to manufacturing conditions and applicable standards.

Test and configuration

Measured output / function: Colour, surface and property changes after UV exposure
Parameters selected for the method: Lamp family, irradiance, temperature, time and moisture cycle
Verification points: Irradiance sensor, specimen temperature and cycle record

Listed methods are application references. Suitability is established by assessing the selected hardware, current method and calibration together.

Test parameters for the reviewed method

Values belong to the stated source edition. Test recipe, fixture and delivered instrument configuration are selected together.

ISO 4892-3:2013 · 4.1.1

UVA-340, UVA-351 and UVB-313 lamps have different spectral distributions, with peaks around 343, 353 and 313 nm respectively. Record lamp type, irradiance measurement band and cycle together; recipes are not assumed equivalent.

ISO 16474-3:2013 + corrigendum 2015 · 5.1.1

For paint/varnish UV exposure, UVA-340 (1A), UVA-351 (1B) and UVB-313 (2) sources are selected separately. Measured irradiance, lamp type and exposure cycle must remain traceable in the report.

EN 927-6:2018 · 5, 7.3.1-7.3.3

Exterior-wood-coating cycle: 24 h condensation at 45 ± 3 °C; then 48 repetitions of 2.5 h UV (60 ± 3 °C; 0.89 W/(m²·nm) at 340 nm) and 0.5 h spray with UV off. Repeat the weekly cycle 12 times, totalling 2016 h.

ASTM G154-06 · 4.2, 6.1-6.1.3

Fluorescent-UV exposure records lamp type, irradiance, moisture step, temperature and duration separately. UVA-340, UVA-351 and UVB-313 spectra differ; monitor specimen-plane irradiance with a radiometer. No universal cycle is specified.

ASTM D4329-99 · 5.1–5.3.3, 6.5, 6.9

1999 edition: G151/G154 fluorescent UV apparatus, UVA-340 unless specified otherwise. Installation ambient 18–27 °C; wall/equipment clearance ≥300 mm; remove heat/moisture by ventilation. At least three replicates; below 90% of peak irradiance, use equal-exposure or position compensation procedures.

Control and recording specification

The following are method-specific software/recording requirements; delivered software modules are defined by the order scope.

Method code and edition, specimen ID, operator and selected test parameters are linked to the record.
Irradiance, temperature and moisture stages are time-aligned; spectral band and integration interval are stated when calculating dose.
Raw measurements, units, valid/invalid test flags and the reported result remain traceable.
Calculations are checked against known inputs and an independent calculation; sensor channels are checked against calibration values.

Download the technical brochure (PDF)Revision: 28 October 2026

Test standards

ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials
ISO 4892-3 Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
ISO 16474-3 Paints and varnishes — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
ASTM D4329 Standard Practice for Fluorescent Ultraviolet (UV) Lamp Apparatus Exposure of Plastics
ASTM D4587 Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings
AATCC 186 Test Method for Weather Resistance: UV Light and Moisture Exposure
EN 927-6 Paints and varnishes - Coating materials and coating systems for exterior wood - Part 6: Exposure of wood coatings to artificial weathering using fluorescent UV lamps and water