Temp and Hum Test Chambers
Four-slot constant temperature and humidity test chamber
  • Model:EH-125L
  • Volume:125L
  • T·R:-40~+150℃
  • H·R:20~98%R.H
Products introduction
The product is designed with four trough independent test space and "one-to-one" refrigeration control system. It is applicable to the reliability test of industrial products. It has the characteristics of temperature and humidity control accuracy and wide control range. Its performance indicators meet the requirements of GB5170.1.2.5.18-2017 Verification Method for Basic Parameters of Environmental Test Equipment for Electrical and Electronic Products Low Temperature, High Temperature, Constant Damp Heat, and Alternating Damp Heat Test Equipment.

Product alias: four tank constant temperature and humidity test chamber, four box temperature and humidity test chamber, multi warehouse high and low temperature (damp heat) test chamber.


Technical parameters
Model Four-slot high and low temperature box
Inner chamber single slot Width
50cm
Height
50cm
Depth
50cm
Temp.Range -40℃~+150℃
Temp.deviation ≦±2.0℃
Temp.fluctuation ±0.5℃
Temp.uniformity ≤2.0℃
Humidity range 20~98%R.H
Humidity Deviation ±3.0%R.H(>75%R.H)
Humidity fluctuation ±2.0%R.H
Humidity Uniformity ±5.0%R.H(≤75%R.H),±3.0%(no load)
Protective device a. Protection switch for heater empty ignition prevention; b. Heater overcurrent circuit breaker; c. Overcurrent overload protection for circulating fan; d. Compressor high voltage protection switch; e. Compressor overheat protection switch; f. Compressor overcurrent Protection switch; g. Overvoltage and under-reversal protection switch; h. Circuit breaker; i. Leakage switch; j. Zero-crossing thyristor power controller; k. Water shortage protection


Executive test standards

GB/T 2423.1-2008 (IEC68-2-1) Test A: Low temperature test method


GB/T 2423.2-2008 (IEC68-2-2) Test B: High temperature test method


GB/T 2423.3-2008 (IEC68-2-3) Test Ca: Constant damp heat test method


GB/T 2423.4-2008 (IEC68-2-30) Test Db: Alternating damp heat test method


GJB360.8-2009 (MIL-STD.202F) High temperature life test


GJBl50.3-2009 (MIL-STD-810D) High temperature test method


GJBl50.4-2009 (MIL-STD-810D) Low temperature test method


GJBl50.9-2009 (MIL-STD-810D) Damp heat test method