Product Description
The high altitude test chamber is a device used to simulate high altitude and low pressure environments. It is mainly used to evaluate the environmental adaptability and reliability of various products such as instruments, electrical products, materials, etc. under low pressure, high temperature, low temperature, or both. It can detect product defects in advance, thereby helping manufacturers to improve their products and enhance product competitiveness.
Structure and working principle
High-altitude test chambers usually consist of the following parts:
Insulation box: located at the front, made of high-quality cold-rolled steel plate, with plastic spraying on the surface, strong anti-corrosion ability.
Refrigeration and vacuum unit: located at the back, usually composed of compressors and other components, responsible for refrigeration and vacuuming.
Electrical controller: located on the door of the test chamber, responsible for system control, equivalent to the "brain" of the high-altitude test chamber.
Standard
High altitude test chamber meet standard as below:
GB/T 2423.21 Test M: Low pressure
GB/T 2423.25 Test Z/AM: Low temperature/low pressure combined test
GB/T 2423.26 Test Z/BM: High temperature/low pressure combined test
GJB 150.2A Low pressure (altitude) test (Procedure I, Procedure 2)
GJB 150.6 Temperature-altitude test
GJB 150.19 Temperature-humidity-altitude test
Temperature
GB/T 2423.1 Test A: Low temperature test method
GB/T 2423.2 Test B: High temperature test method
GJB 150.3A High temperature test
GJB 150.4A Low temperature test
Specification
|
Model |
B-TH-80 (A~G) |
B-TH-150 (A~G) |
B-TH-225 (A~G) |
B-TH-408 (A~G) |
B-TH-608 (A~G) |
B-TH-800 (A~G) |
B-TH-1000 (A~G) |
|
Inside size WxHxD (cm) |
40x50x40 |
50x60x50 |
50x75x60 |
80x85x60 |
80x95x80 |
100x100x80 |
100x100x100 |
|
Outside size WxHxD (cm) |
95x145x105 |
105x175x97 |
115x190x97 |
135x185x120 |
145x185x137 |
145x210x130 |
147x210x140 |
|
Temperature range |
0℃~+150℃ |
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|
Humidity range |
20%~98%R.H.(10%-98%R.H/5%~98%R.H is the specific condition) |
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|
1. Temperature range |
0℃~ +150℃ |
|
2. Humidity range |
20%R.H ~ 98%R.H |
|
3.Temperature and humidity chart |
|
|
4. Temperature deviation |
≤ ±2.0 ℃ (no load, constant state) |
|
5.Temperature resolution |
0.1℃ |
|
6.Temperature uniformity |
≤ ±2℃ (no load, constant state) |
|
7. Humidity fluctuation |
±1.0%R.H |
|
8. Humidity deviation |
≤ ±2%R.H |
|
9. Humidity uniformity |
>75%RH: ≤±2-3%RH; <75%RH: ≤±3-5%RH (humid heat type only) |
|
10. Humidity resolution |
1.0%R.H |
|
11. Heating time |
3~5℃/min (non-linear no-load) |
|
12. Cooling time |
0.7~1.2℃/min (non-linear no-load) |
Operation and Maintenance
When using the high altitude test chamber, pay attention to the following points:
Sample preparation: Select representative samples and perform necessary pretreatment. Do not put in dangerous goods.
Test conduct: Place the selected samples in the test chamber and conduct the test according to the preset procedure.
Result observation: During and after the test, observe the performance changes of the samples to obtain specific test data of the product.
Data analysis: Analyze the test data and evaluate the reliability of the product, so as to improve or upgrade it.
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