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姚益涵
Sales Manager - 姚益涵
吳燕紅
Sales Manager - 吳燕紅
姚益涵
Sales Manager - 姚益涵
吳燕紅
Sales Manager - 吳燕紅
吳燕紅
Sales Manager - 吳燕紅
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Temperature Test Chamber
MHW-480 (Refrigerate via All-in-One Compressor)
  • Volume, size and weight
  • Nominal Internal Volume
    150L
  • Inside Dimensions
    W500 mm×D500 mm×H600 mm
  • Overall Dimension
    W750 mm×D1500 mm×H1750 mm (Without Bulge)
  • Weight
    About 260kg
  • Performance
  • Testing Methods

    GB/T 5170.2-2008 Temperature Test Equipment

    GB/T 5170.5-2008 Damp and Heat Test Equipment

  • Temperature Range
    -20℃~150℃
  • Temperature Fluctuation
    ≤1℃(No Load and Stable Temperature)
  • Temperature Deviation
    ±2.0℃ (No Load and Stable Temperature)
  • Heating Time
    -20℃→+150℃ ≤60 min (No load, average nonlinearity)
  • Cooling Time
    +20℃→-20℃ ≤45 min (No load, average nonlinearity)
  • Humidity Controllable Range Diagram (No Active Wet and Thermal Load)
  • Relative Humidity Deviation
    ±3.0%RH (Humidity>75%RH); ±5.0%RH (Humidity≤75%RH)
  • Meet Testing Method

    GB/T 2423.1-2008   Testing Method of Low Temperature Ab

    GB/T 2423.2-2008   Testing Method of High Temperature Bb

    GJB 150.3A-2009    High Temperature Test

    GJB 150.4A-2009    Low Temperature Test

    GB/T 2423.3-2006   Constant Damp and Heat Testing Method Cab

    GB/T 2423.4-2008   Alternating Damp and Heat Test Method Db

    GJB 150.9A-2009    Damp and Heat Testing

    GB/T 10586-2006   Technical Conditions for Damp and Heat Test Chamber

    GB/T 10592-2008   Technical conditions of high and low temperature test chamber

    (Load is not greater than 35kg / m3 steel heat capacity. There is no active wet and heat load during damp and heat testing.)

  • Structure Characteristics
  • Thermal Insulation Enclosure Structure

    Outer wall material: High quality cold rolled steel plate with plastic spraying and paint baking treatment on the surface.

    Inner wall material: Stainless steel plate SUS304.

    Box insulation material: rigid polyurethane foam and glass wool (insulation thickness: 100mm)

    Door insulation material: Glass wool.

  • Air Conditioning Channel
    Centrifugal fan, heater, evaporator (also dehumidifier), humidifier, etc.
  • Standard Configuration of Test Chamber

    Lead hole (multiplicable): φ100mm with 2 lead hole.

    (Equipped with soft rubber plugs. One on the left side and the other one on the right side of the box.)

    Casters: 4个(With adjusting foot.)


    Observation Window: Multi layer hollow electric heating film heating anti fog observation window (located on the door).

    Visual Range: About 230×270 mm (wide*high). The glass is equipped with electric mist removal, which can provide the best observation sight line.

    Floodlight: 1;

    Sample rack (can be added): Two layers of high temperature resistant electrical insulation sample rack. Bearing capacity (uniform distribution): 10kg / layer (the cumulative total bearing capacity of samples in the box shall not exceed 40kg).

  • Door

    Single hinged door (left hinge, right handle), equipped with observation window and lighting.

    Window frame / door frame anti condensation electric heating device. Double layer silicone rubber sealing strip.

  • Control Panel
    Controller display screen, overtemperature protection setter, etc.
  • Refrigeration Unit Room

    Refrigeration Unit, Water Tray and Drainage Hole;

    Condensing Fan, Lifting Water Pump and Water Storage Tank.


  • Power Distribution Control Cabinet

    Main Power Leakage Circuit Breaker (One), Distribution Board (One), Exhaust Fan (One), Ethernet Physical Interface (One);

    Temperature and Humidity Controller, AC Contactor, Circuit Breaker, Thermal Relay

    Temperature limiting protector, solid state relay and transformer, etc.

  • Heater

    Ni Cr alloy electric heating wire heater;

    Heater control mode: contactless periodic pulse width modulation, SSR (solid state relay).


  • Humidifier

    Stainless steel armored heater;

    Heater control mode: contactless periodic pulse width modulation, SSR (solid state relay);

    Water level control device, heater anti dry burning device.


  • Refrigeration System
  • Operation Mode
    Mechanical compression single-stage refrigeration mode.
  • Refrigeration Compressor
    "Taikang" fully enclosed compressor imported from France
  • Main Refrigeration Components
    Expansion valve, pressure controller, drying filter, refrigeration solenoid valve, liquid reservoir, oil separator, etc.
  • Evaporator
    Finned tube heat exchanger (also used as dehumidifier).
  • Condenser
    Air cooled type: finned tube heat exchanger.
  • Throttling Device
    Expansion Valve / Capillary
  • Refrigerator Control Mode
    Control system automatically adjusts the operating conditions of the refrigeration unit compressor return air cooling circuit according to the test conditions.
  • Refrigerant
    R404A (Ozone Wastage Index is 0)
  • Welding Technology
    Nitrogen filled in order to protect welding.
  • Control System
  • Controller Model
    Professional Temperature and Humidity Controller
  • Monitor
    HD color LCD touch screen
  • Operation Mode
    Program Mode and Setting Mode
  • Setting Mode
    Color, Touch, Man-machine Interactive, Chinese/ English Interface
  • Control Mode

    Anti integral saturation PID;

    BTHC balance temperature and humidity control mode.


  • Temperature and Humidity Measurement Method
    Class A armored PT100 sensor
  • Display Accuracy

    Temperature: 0.01℃; Humidity: 0.1%RH; Time: 1min.

  • Overtemperature Protection
    Independent overtemperature protector will protect the shutdown and send an alarm signal when the working room temperature exceeds the temperature set by the protection device.
  • Water Supply System
  • Water Supply Mode
    Water Pump Lifting
  • Location of Water Supply Unit
    Front water tank, drawer type water filling.
  • Water Supply Quality Requirements
    Resistivity≥500Ω·m
  • safety Protection Unit
  • Refrigeration System
    Compressor Overheating, Compressor Overload, Compressor Overpressure, Condensate Fan Overheating
  • Humidification System

    Humidification heat pipe dry burning, abnormal water supply and drainage.

  • Test Chamber
    Adjustable overtemperature, blower motor overload and overheating.
  • Others

    Main power supply phase sequence and phase loss protection, leakage protection, overload and short circuit protection, power failure recovery protection.

  • Other Configurations
  • Power Cable
    One Five Core Cable (Three-Phase Four Wire + Protective Ground Wire)
  • Main Power Leakage Circuit Breaker
    Three phase four wire and protective ground wire.
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