Walk-in Temperature and Humidity Chamber

A wide range of solutions are available for any customer requirements.Our company are able to provide walk in chamber for applications in such diverse fields as electronics, aeronautics, automotive, home appliances and etc.

Complies to national and international standards: IEC 60068-2-1-1990, IEC 60068-2-2-1974, IEC60068-2-30-2005

Constructional Features

• Imported Stainless steel interior
• Painted Galvanized steel panel for exterior for long life
• Heavy duty and good flooring support
• Good Thermal insulation material: No thermal loss, resulting in energy saving and low cost of operation
• Easy access to maintenance checked of refrigeration system
• Reliable steam generator for relative humidity production
• Reliable Air blower for good and stable temperature uniformity
• Imported parts like temperature controller, compressor, breaker, motors I chamber, overload relay, thermal overload relay and etc. are imported
• Customization to suit additional test requirements

The control system interface is placed near the door. It comprises

1. Emergency stop push button
   Stops the chamber immediately when emergency occurred

   

2. Touch Panel Controller

   

3. Superior Programmable Controller Model : TEMI880/TEMI990 is color touch screem made from Korea. With '2 in 1' function -Controller and Recorder function where the reading can be recorded and save. Displaying graphical programming patterns of both temperature and humidity that enable straight forward visual assessment of the response curves.

   

   Improved programming and data collection via computer
   • Standard USB port allow transfer of data to PC by Thum-drive for further analysis and management through software Data can be opened as a list excel spreadsheet or graph pattern, and can be used to check historical data

     

   • Direct distance link for support and maintenance from our manufacturer through internet connection function (optional monitoring link).
   Most Efficient Safety Control System
   • Refrigeration system: compressor over heat protection, compressor over-current protection, compressor over-pressure protection, condenser fan over-heat protection, compressor lubricant oil low level
   • Test Chamber: Chamber over heat protection; fan and motor over heat protection, water level protection
   • Current leakage protection
   • Alarm, buzzer will alert user if error occurs
   • Indicator LED shown when malfunction occurred
   • If trouble occurs, the details, date and time of occurrence are displayed on the alarm screen
   • Door opening alarm (optional)
   Error screen on controller
   Alarm indicator in red color light
    

   Cooling system is driven by France Compressor or Bitzer Compressor complete with evaporator, condenser, safety valves, and thermal protections. Rapid cooling with low noise, low vibration. Refrigerant used: R23, R404, R507 (ozone friendly refrigerant)

   Working principle of refrigeration system

   Heating by Nichrome Eletronic Heater
   Heating system by Nichrome electronic heater, controlled by solid state relay, protected by over temperature switches
   • Thermocouple probe, fast response to temperature in range of -70°C to 150°C
   • Heating control by PLC controller/programmer based on PID feedback principle. Fast and precise control of temperature.

     Use a boiler (steam generator) humidification system with strong humidification ability

   

   Use a boiler (steam generator) humidification system with strong humidification ability

   Good Air circulation system
   Good ventilation system driven by low noise, powerful multi-wing turbine fan. Quick response to temperature changes, rapid cooling and maintains temperature uniformity and stability inside the chamber.

   Optional Capabilities
   Chamber installed with infrared lamp for radiant surface heating of samples
   For specific customer application, especially for automotive indusrty that produce interior car compartments. When car under hot sun, solar radiation in the form of UV light, easily aborbed by interior surfaces of car such as dashboard, and thereby raising the temperature. The hot surface can radiate heat energy into the vehicle interior as infrared radiation.
   
   Cable Test hole standard diameter (with plug): 50mm or 100mm
   Diameter: 25mm, 150mm (optional)

   

   We deliver custom-made chambers
   We will meet your demands to design chamber with good performance according to customer standared and other special requirement.

    

   Technical Specification of Chamber

   Internal Dimension	MRD-WT (It can do according to customer's requirements)
   External Dimension	MRD-WT (It can do according to customer's requirements)
   Temperature Range	-20°C / -40°C / -70°C ~ +85°C
   Humidity Range	25% - 98%RH
   Temperature Uniformity	±2.0°C
   Temperature Fluctuation	±0.5°C
   Humidity Uniformity	±5% RH
   Humidity Fluctuation	±2.5% RH
   Heating Time	20°C ~ +80°C <60 min
   Cooling Time	20°C ~ -55°C	20°C ~ -40°C	20°C ~ -20°C	20°C ~ -10°C
   	120 min	90 min	60 min	50 min

   Drive-in Chambers

   

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