Function and Use

The constant temperature and humidity test machine can simulate different test conditions such as high temperature and high humidity/high temperature and low humidity/low temperature and high humidity/low temperature and low humidity. It is widely used in aerospace, military, electronics, electrical appliances, petroleum, chemical, coatings, plastics, post and telecommunications, medical and pharmaceutical, colleges and universities, scientific research institutions and other industries to conduct environmental reliability tests on products for temperature and humidity resistance.

Test Principle

The constant temperature and humidity test machine adopts a balanced temperature and humidity control system (BTHC) to control the SSR in a P.I.D. way, so that the heating and humidification amount of the system is equal to the heat and humidity loss, allowing the machine to operate stably for a long time.

Comply with standards

GB/T2423.1-2008 low temperature test method, GB/T2423.2-2008 high temperature test method, GB/T2423.3-2006 test Cab: constant humidity and heat, GB/T2423.4-2008 test Db: alternating humidity and heat test method GB/T2423.34-2005 test Z/AD: humidity and heat combination or other temperature and humidity tests within the performance range of the equipment.

Instrument features

1. The whole machine is sheet metal painted, and the inner box is mirror stainless steel

2. The insulation material is made of high-temperature resistant and high-density ethyl chloroformate foam insulation material

3. The humidification system adopts a stainless steel humidification cylinder design, with additional water shortage power off and over-humidity protection

4. The heater adopts a stainless steel fin-type heat dissipation tube heating tube imported from Taiwan

5. No fuse switch, [compressor overload, refrigerant high and low pressure, over-humidity and over-temperature] protection switch, fuse failure warning system

Technical parameters

Temperature range: -40℃～150℃

Humidity range: 20%～98%RH

Power supply: 3φ 220V AC±10% 50/60Hz

Temperature and humidity control accuracy: ±0.3℃; ±2.5%RH

Heating/cooling time: about 3.0℃/minute; about 1.0℃/minute

Temperature and humidity analysis accuracy/distribution accuracy: 0.1℃, 0.1%RH/2.0℃, 3.0%RH

Internal dimensions (cm) about: width 400mm×depth 400mm×height 500mm

External dimensions (cm) about: width 910mm×depth 1000mm×height 1550mm

Instrument configuration

Recorder/USB interface (optional), automatic defog glass window, test hole, operating room light, mobile wheel, 50mm test hole, PL box light, two upper and lower adjustable compartments, dry and wet ball gauze