Benchtop Constant Temperature and Humidity Test Chamber

Function:  

It simulates the products in the chamber where the climate condition of different temperature and humidity, such as high-low operation and storage, temperature cycling, high-low temperature and high-low humidity, moisture condensation etc. to check its adaptability and changing performance.

It’s required to conform to international regulation (IEC, JIS, GB, MIL…) to reach the consistency (including test schedule, condition, method) under the international standard.

Standards:

GB/T 5170.2-1996 Temperature test chamber

GB/T5170.5-1996 Temperature and humidity test chamber (only temperature and humidity)

GB/T 2423.1-2001 Test A: Low temperature test method

GB/T 2423.2-2001 Test B: High temperature test method

GJB 150.3-1986 High temperature test

GJB 150.4-1986 Low temperature test

IEC68-2-1 Test A: Cold

IEC68-2-2 Test B: Dry heat

GB11158 “Technical Conditions for High Temperature Test Chamber ”

GB10586-1 “Technical conditions for Damp heat test chamber ”

GB/T 2423.2 “Basic environmental testing procedures

for electric and electronic products B: High temperature test method”.

GB/T 2423.3 “Basic environmental testing procedures

for electric and electronic products Ca: Constant damp heat testing method” etc.

Sample application:

The chamber applies to:

compatibility test for store, transportation and application of electric, electronic products, unit components, parts and other materials under high or low temperature.

The following samples are prohibited to be tested and stored:

• Inflammable , explosive and other volatile substances;
• Corrosive substance;
• Biont;
• Strong electromagnetic emission source.

Performance:

Test condition	Temperature:+25℃ , Humidity: ≤85%, no samples in the chamber
Test method	GB/T 5170.2-1996 Temperature test chamber GB/T5170.5-1996 Temperature and humidity test chamber (only temperature and humidity)
Temperature range	-20℃→+150℃ (adjustable)
Temperature fluctuation	±0.5℃
Temperature accuracy distribution	±2.0℃
Humidity range	20%～98%R.H (temperature at 20℃-85℃)
Humid. fluctuation	±2.5%R.H.
Humidity accuracy distribution	±3.0%.
Temp.changing rate	Heating rate: 2.0-4.0℃/min; Cooling rate: 0.7-1.0℃/min
Load condition	Testing space is not more than 3/4 of the total space, no heating
Sample shelves	Stainless steel punching stencil; Qty, 2pcs
Relative humidity and temperature control range (refer to fig.)