09,22,2026 37 views
high and low temperatureAlternating Damp Heat Test ChamberAlso known as environmental testing chamber, temperature and humidity testing chamber, it mainly tests various materials for their heat resistance, cold resistance, dry resistance, moisture resistance, and resistance to humidity and heat. Suitable for the electronics industry, optoelectronic industry, automotive industry, electronic system factory, electronic spare parts, automotive electronics, and spray painting industry. Biochemical technology, pharmaceutical industry, state-owned enterprises. For industrial use.
Choose a suitable high and low temperature deviceAlternating Damp Heat Test ChamberThe summary of the conditions is five points: temperature range, humidity range, size range, instrument operation interface, and manufacturer's reputation guarantee.
The humidity indicators provided by high and low temperature alternating humidity test chambers at home and abroad are mostly 20-98% RH or 30-98% RH. If the humidity test chamber does not have a dehumidification system, the humidity range is 60-98%. This type of test chamber can only perform high humidity tests, but its price is much lower.
When placing the test product (components, assemblies, parts or whole machine) into a climate chamber for testing, in order to ensure that the atmosphere around the test product can meet the environmental testing conditions specified in the test specifications, the working dimensions of the climate chamber and the overall dimensions of the test product should follow the following regulations:
The volume of the tested product (WHD) shall not exceed (20-35)% of the effective working space of the test chamber (20% is recommended) For products that generate heat during testing, it is recommended to use no more than 10% The test product accounts for two-thirds of the box, and Z is the best (the distance between the outer surface of the test product and the wall of the test box should be kept at least 100-150mm). In addition, it is important to avoid the product not blocking the air outlet. The fan blowing is an important guarantee for the uniformity of the box.
The range of temperature test chambers abroad is generally -73 to+177 ℃, or -70 to+180 ℃ Most domestic manufacturers generally range from -70 to+150 ℃, -60 to+130 ℃, -40 to+100 ℃, and there are also high temperatures up to 180 ℃ These temperature ranges can usually meet the temperature testing needs of the vast majority of military and civilian products in China, unless there are special requirements. The domestically produced ones are at A: -20 ℃~150 ℃, B: -40 ℃~150 ℃, C: -60 ℃~150 ℃, D: -70 ℃~150 ℃, in compliance with the standards GB/T2423.1-2008 GB/T2423.2-2008 GB/T2423.3-2006, mainly for national standards, but also corresponding to ISO, GJB and other related requirements.
The constant temperature and humidity test chamber is divided into constant temperature and humidity and temperature and humidity alternating - i.e. single point and programmable. The former requires a regular key instrument, while the latter requires a touch instrument with programmable control. The functions of the experiment vary depending on the price.
The latter point is very important, and the manufacturer's reputation guarantee should be based on the manufacturer's actual operating years, customer base, customer evaluations, product production processes, and third-party guarantees. The direct way for Z is to directly consider the manufacturer, seeing is believing, whether it is a donkey or a horse leading out for a walk. If the company is too far apart, the office is crucial, or go to the manufacturer's local customer company to see the equipment.
