10%~98% Low Humidity Type Temperature & Humidity Environmental/Climate Test Chamber for Lab/Laboratory

Model: PW-CTH225-40Q
Industry Temperature Humidity Environment Stability Climate Test Chamber, used for material performance test under different environment, such as heat, cold, moisture, heat and moisture, mainly applied in electronics, electrical appliances, mobile, commun
*The test requirements that need to reach below -40 degrees will use a cascade double compression refrigeration system. When the test is above -20 degrees, only one compressor will be started to work with a smaller power heating tube for inching heating, which saves electricity and water; ( If single-stage refrigeration is used, the compressor will be equipped with high-power full-process refrigeration, and the refrigeration capacity is also large, and a higher-performance heating tube is required to balance, so it consumes electricity and water.
*The sink is made of special materials with low thermal conductivity and no water droplets on the surface (such as metal materials will form water droplets on the surface, which will easily wet the sample and affect the test results), and is equipped with a diversion device. If the sink appears When the internal pressure is too high or the water level is too high, it will flow into the humidification barrel through the diversion hole.
*The cascade dual-compression refrigeration system can easily meet the test requirements of low temperature -40 degrees and below. When the single-stage refrigeration reaches -38 degrees, it will be difficult to drop to -40 degrees. This is due to the characteristics of R404A refrigerant. It can only be achieved by temperature compensation.
*The machine is exquisite, the internal space is large, the external dimension is small, the width is only about 78cm, and the single-door laboratory can be easily entered.
*There is a pressure relief hole on the top.

Model PW-CTH100 PW-CTH-150 PW-CTH-225 PW-CTH-408 PW-CTH-800 PW-CTH-1000
Inner chamber size W×H×D(cm) 50×50×40 50×60×50 60×75×50 80×85×60 100×100×80 100×100×100
Exterior chamber size W×H×D(cm) 78×157×105 78×167×115 88×185×115 108×195×125 128×210×145 128×210×165
Testing temperature range 0ºC,-20ºC,-40ºC,-70ºC~180ºC
Testing humidity range 10%RH~98%RH
Temp.humi.fluctuation ±0.3ºC;±0.5%RH
Temp.humi.uniformity ±2ºC;±3% empty loading after stablize for 30mins ±2ºC;±3%RH
Temp.humi.resolution 0.01ºC;0.1%RH
Heating&cooling time ºC/min Heat-up:3ºC/min(average),cool-down:1ºC/min(average)
Exterior chamber material Cold rolled plate + Powder coating
Interior chamber material SUS#304 Stainless steel
Insulation material Rigid Polyurethane foam
Circulation system Centrifugal fan air circulation system
Heating system SUS# Stainless steel high-speed heater
Humidification system Electrothermal steam humidification
Dehumidifying ADP critical dew point cooling / dehumidifying method
Refrigeration system Finned evaporator + Air(Water) cooling condenser
Controlling system Touch screen controller
Other components Vacuum glass observation window
Test hole(100mm)
Controller status indicator
View light
Compartment shelf (2 freely adjustable)
Safety protection device Overheat protection circuit breaker
Humidification system overheat protection
Compressor overload protection
Control system overload protection
overload indicator
Phase sequence protection
Water shortage protection
High voltage and low voltage protection
Over temperature protection
Water supply delay protection
Fan overcurrent protection
Power supply AC 1ψ220V;3ψ380V 60/50Hz
Customization service Non-standard or special requirements are all welcome