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1. Test Purpose
Environmental Chamber for Thermal Cycling and Humidity-Freeze Test determine
the ability of the component to withstand thermal mismatch, fatigue and other stresses due to repeated temperature changes Determine the ability of the component to withstand the effects of high temperature,
high humidity and subsequent sub-zero temperatures. Determine the ability
of the component to withstand the effects of long-term moisture penetration

2.Test Standards
Testing Method
MQT 11 Thermal cycling test
MQT 12 Humidity-freeze test
MQT 21 (Potential induced degradation）
PID Test
MST 51 Thermal cycling test
MST 52 Humidity-freeze test
MST 55 Cold conditioning test
MST 56 Dry heat conditioning test

3.Technical requirements
Temperature range: -50-150℃
Temperature deviation (in steady state) ≤ ±2.0°C
Temperature fluctuation: ≤ ±1.0°C
Temperature uniformity (in steady state) ≤ 2°C
Heating/cooling rate: 0.5~5 ℃/min (Could customize according to requirement)
Humidity range: 20% to 98% R.H
Humidity deviation: ±2% (>75%RH) ; ±5% (≦75%RH)
Humidity fluctuation: ≤1.5%R.H
Humidity uniformity: ≤3%R.H
Humidity stable time: Within 15 mins after temperature is stable.

4. Product feature:
-- Energy saving: Adopt thermal expansion valve + capillary + cold output of the latest cooling capacity control technology, change the traditional heater offset cooling capacity to control the box temperature. power
loss to achieve energy saving effect (40% energy saving than traditional methods).

--The Internet of Things: environmental test chamber and power supply system are both produced by factory, which can form a LAN to run the environmental test chamber with external PID power supply and environmental monitoring power supply system(It can automatically stop the external PID equipment when the aging equipment fails, reduce the risk of electric shock and protect the sample safety to meet the requirements of the new PID test standard.)