Accelerated weathering tester, JTH-Q, is designed to simulate the weather mix with UV light, temperature and moisture conditions. The tests are intended to reproduce the damage caused by sunlight, rain and condensed surface moisture or dew.   Types of damage include color change, gloss loss, chalking, cracking, hazing, embrittlement, and strength loss.

With programmable controller that can program the rain, UV light and temperature. With cycling control of light and moisture at controlled  temperatures.

The moisture includes both condensing humidity, to simulate dew, and water sprays. The light in the chamber is created by specially-designed fluorescent UV bulbs to simulate the effects of sunlight.  


  • LCD Touch Screen Controller,  programmable of UV, condensing moisture, temperature and water spray

  • 40W fluorescent UV lamps

  • With condensation system

  • With heater

  • With sprayers

  • Test specimens are mounted in convenient snap-right holders

Control Specification

  • Temperature
  • Condensation
  • UV Lamp: UVA-340 or UVB-313
  • Spray Nozzle: 0.4mm

Sunlight Simulation

  • UVA-340 Lamps simulate sunlight in short wavelength from 295 to 365nm

  • UVB-313 Lamps for quick acceleration

  • Light Intensity is controllable (Automatic control)

Moisture Simulation

  • hot condensation system

Rain Simulation

  • Water spray system with nozzle simulate the damage causes by rain

Temperature Control

  • With heater to increase the temperature to accelerate the destruction effect caused by light and moisture


  • Meet ISO-4892, ISO-11507, ASTM C1442, ASTM G-151,  ASTM G-154, ASTM-G53, ASTM D904, ASTM D-4329, ASTM D5208, ASTM D4587, ASTM D4799, ASTM D6662, EN 927-6, J15 K 5600-7-8, AATC TM186, AATCC Test Method 186, SAE-J2020, GM-9125P   





LCD touch screen control, programmable of temperature, humidity, UV, spray and time.  Program repeatable.

 Temperature Range RT to 70C
 Humidity Range 100%RH
 UVA-340 Lamp 340nm (0.35 to 1.5W/m2) , adjustable
 UVB-313 Lamp 313nm (0.35 to 1.3W/m2)  , adjustable
  No. of UV sensors 4
 Standard Sample Holder 75x150x1.5mm
 Distance from sample to lamp 50mm
 Center distance between the lamp 70mm

 Chamber External Size

 Power Supply 220Vac 50/60Hz



Welltech Instrument Co. Ltd
Address: Suite 2611, Office Tower Langham Place, 8 Argyle Street Mongkok, Hong Kong | Tel: 852-23491224 | Fax: 852-26669436

I am God Almighty; walk before me and be blameless. (Genesis 17:1)