Temp and Hum Test Chambers
Split type constant temperature and humidity test chamber
  • KMH-262-LN2
  • 262L
  • -70~+150℃
  • 5%~95%R.H
Products introduction
The independent refrigeration system of the split type thermostat meets the requirements of low vibration and ultra-high control accuracy. 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: split type constant temperature and humidity test chamber, external environmental test chamber, split type high and low temperature humidity and heat alternating chamber, low vibration temperature and humidity test chamber, and separate type constant temperature and humidity test chamber.


Technical parameters
Model KMH-262-LN2 Split thermostat
Studio volume 262L/㎡
Inner chamber size Width
460mm
Height
1120mm
Depth
510mm
Exterior chamber size Width
660mm
Height
1475mm
Depth
1600mm
Temp.Range R:-20~+150℃/180℃
L:-40~+150℃/180℃
S:-70~+150℃/180℃
Humidity range 20%~98%RH
Temp.uniformity ≤2.0℃
Temp.fluctuation ±0.5℃
Temp. Deviation ≤±2.0℃
Humidity Uniformity ±3.0%RH(no load)
Humidity fluctuation ±2.0%RH
Humidity Deviation ±3.0RH(>75%RH)±5.0%RH(≤75%RH)
Chamber structure characteristics Split design: temperature box, independent refrigeration unit
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


Product features

The split structure is designed to separate the test area from the refrigeration system, which not only facilitates moving in and out of the laboratory, but also fully meets the high test requirements. When a test needs to ensure that there is no vibration in the area when the test sample is tested under various environmental conditions, and the compressor and condenser are the main vibration sources of the temperature box. The use of a split type to connect the copper tube with the refrigeration device can keep the compressor and the condensing fan away from the test area, effectively avoiding the generation of vibration transmission.