IEC 60068-2-14 Three-Box Thermal Shock Test Chamber 300L Environmental Test Chamber
IEC 60068-2-14 Three-Box Thermal Shock Test Chamber 300L Environmental Test Chamber
Product information:
Standard:
1. GB/T 2423.1-2008 Test A: Low temperature test method;
2. GB/T 2423.2-2008 Test B: High temperature test method;
3. GB/T2423.22-2002 Test N: Temperature change test method
4. GJB/150.3-1986 High temperature test
5. GJB/150.4-1986 Low temperature test
6. GJB/150.5-1986 Temperature shock test
7. IEC 60068-2-14—2009 Test N: Temperature change test method
Sample description:
This equipment is suitable for two/three temperature zone tests of various temperature shocks and temperature changes within the performance range.
PS: Change the 2-temperature zone or 3-temperature zone test mode in the form of pneumatic damper switching (note that the 2-temperature zone mode has temperature range restrictions)
Technical parameters:
|
Volume and size |
|
| Volume | About 300L |
| Inner chamber size | 600×650×750(D×W×H) mm |
| Outer chamber size | 2250×2250×2250(D×W×H)mm |
|
Performance |
|
|
Working method |
Pneumatic damper switches between 2 temperature zones or 3 temperature zones |
|
Test chamber impact temperature range |
+50℃ to +200℃/-65℃ to -10℃ |
|
Preheating temperature range of high temperature chamber |
+20℃ to +220℃ |
|
Preheating temperature range of low temperature chamber |
-75℃ to +10℃ |
|
Temperature fluctuation |
≤±0.5℃ |
|
Temperature deviation |
≤±2℃ |
|
Temperature uniformity |
≤2.0℃ |
|
High temperature chamber pre-heating time |
+RT℃ to 220℃ for about 60 minutes |
|
Low temperature chamber pre-cooling time |
+RT℃ drops to -75℃ for about 90 minutes |
|
Temperature restoration time |
≤5 minutes (damper switching time ≤10s) |
|
Test requirements |
Supports forward and reverse impact, supports exposure to room temperature for 30 minutes |
| Energy saving design | The refrigeration system can adjust the power according to the load size, adopts VRF technology based on the PID+PWM principle (the electronic expansion valve is servo-controlled according to the refrigerant flow rate according to the thermal energy working conditions), and has compressor energy adjustment technology, which can achieve excellent energy-saving effects. |
| Extra long defrost technology |
Defrosting technology: 1. Use high-temperature return air from the compressor to defrost the evaporator. |
| Noise | Noise ≤85dB (measured 1m away from the equipment door by the noise detection device). |
| Cooling method | The equipment is water-cooled |
|
Outer chamber |
Sprayed galvanized color steel plate |
|
Inner chamber |
SUS#304 stainless steel plate, corrosion-resistant. All seams are continuously TIG welded to ensure no leakage after long-term testing. Key parts are reinforced to ensure no deformation during long-term use. |
|
Insulation layer |
Made of rigid polyurethane foam and glass wool, it is flame-resistant and fire-proof, and meets environmental protection requirements. |
|
Chamber door |
Left hinge, right door opening |
|
Sealing |
Original imported silicone sealing strip |
|
Switching valves |
A. It is divided into high temperature tank, low temperature tank and test tank. The high and low temperature tank is used for energy storage, and the test tank is the user's experimental area. B. The high and low temperature tank is separated from the test tank by a switchable valve. The corresponding valve will be automatically opened upon impact. |
|
Test port |
There are three test round holes with a diameter of 50mm on the left side of the equipment. The round holes have covers and soft plugs according to user requirements. |
|
Observation window |
The door of the box is equipped with a large heating and sweat-proof 3-layer vacuum glass observation window. There is a light in the observation window for observing the conditions inside the test box. |
|
Casters |
Four casters with fixed feet |
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