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.) |  |
