Low Environmental Test Chamber / Temperature Humidity Test Chamber

Ⅰ. Product Overview
 

Able to accurately simulate a wide range of complicated natural environments, and is suitable for
 
reliability test in industrial products. Meet GB5170.2.3.5.6-95 standard requirements of environmental
 
testing equipment and test methods for the basic parameters of electric and electronic products under
 
the condition of humidity, low temperature, high temperature, and constant heat.

Ⅱ. Application
 

It is suitable for tests the products of electrical, electronic, mechanical and other products, parts and
 
materials under the conditions of high and low temperature and high temperature and humidity. For
 
quality and reliability test of simulating temperature and humidity changes in electrical, electronic,
 
mechanical and other products, parts and materials.

Ⅲ. Features
 

● GB-2423.1-2008 (IEC68-2-1)Test A: Low Temperature Test
● GB-2423.2-2008(IEC68-2-2)Test B: High Temperature Test
● GJB360.8-2009(MIL-STD.202F) High Temperature Life Test
● GJBl50.3-2009(MIL-STD-810D) High Temperature Test
● GJBl50.4-2009 (MIL-STD-810D) Low Temperature Test
● GB2423.3-2008(IEC68-2-3)Test Ca: Constant Heat Test
● GB2423.4-2008(IEC68-2—30) Test Db: Damp Heat Alternative Test
● GJBl50.9-2009 (MIL-STD-810D) Damp Heat Test

Bypass mode to adjust cooling capacity to achieve a constant
 
temperature and humidity effectively

※Using company owned brand KOMEG KM-5166 LCD touch screen
 
controller with PID control parameters setting
※Flexible approach for data collection and recording

※Key parts are imported, ensuring the service life and high reliability
※Efficient oil separator to ensure the service life of the compressor

Ⅳ.Technical specification (Air cooled, room temperature +25℃, no load )
 

-20℃ ～ +150℃
 

≦ ± 2.0℃
 

±0.5℃
 

±2.0℃
 

Heating up rate: -20℃↑ +100℃ about 35min (no-load, ambient
 
temperature +25℃)
Cooling rate: 20 ℃to -20℃ about 45min (no-load, ambient temperature +25℃)

2. Humidity
 

20%R.H～98%R.H
 

±3.0％RH(＞75％RH)
±5.0％RH(≤75％RH)

3.0％RH (no-load)
 

±2.0％RH
 

Temperature and humidity performance test is in accordance with the relevant provisions of the
 
IEC60068 -3 standard measurement; sensor placed in the unit outlet.

Ⅴ. Chamber Structure
 

Overall structure and chamber was composed of three parts as below.
Insulation box, separate refrigeration units, and electrical control cabinet.

1. Chamber size

Workspace volume: W 400 × H 400 × D 400 mm
Exterior size: W 600 × H 1550 × D 1220 mm (about)

 Wall material: high-quality carbon steel with static color spray
 Inner wall material: SUS304 # matte stainless steel plate
Insulation materials: rigid polyurethane foam insulation layer + glass fiber.

1. Door

Single door, left open. Heating wire was installed at the door frames to
 
prevent condensation at low temperatures.

With observation window W216×H230mm, multi-hollow electric
 
insulation coated glass prevent condensation effectively

LED Lighting device *1 located on observation window
 

High quality nickel-chromium alloy wire electric heaters
Non-contact control mode(SSR)
 

Water basin heating and humidification method;
Stainless steel sheathed heater;
Heater control: no-contact control (SSR);
Water level control device, heater anti-dry device.

Available for drain the condensate water
 

Φ50mm*1 located on each side of chamber, with rubber stopper and
 
stainless steel cover

Two layers of stainless steel sample holder. Adjustable, load capacity
 
30kg/ layer

Mobile Casters with foot cups
 

Total power circuit breaker, over-temperature protection.
 

Water pump automatic supply
 

Ⅵ. Cooling System
 

Mechanical compression refrigeration
 

Europe and the United States imported hermetic compressor
 

Environmental-friendly refrigerant: R404A
 

Shell and Tube condenser(air -cooled)
 

Fin-type multi-stage automatic load capacity adjustment, No frost in
 
long-term use of low temperature and humidity conditions

Use internationally-known brand, such as high precise expansion valve,
 
oil extractor, dryer and many other accessories.

Adjust energy consumption output and control automatically to the
 
refrigeration system.