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ENVIRONMENTAL TEST CHAMBER - Low Temperature Test Chamber

Low Temperature Test Chamber

TTLT Series of Low Temperature Test chamber are widely used in testing various types of materials for their tolerances of heat and cold. It is designed for quality inspection for all types of electronic products, electric appliance, and products from communication, instruction, automobile, plastic, metal, food, chemical, building materials, medical and aerospace industries. Unique design with high quality material, whether you’re testing aerospace products, electronic instrumentation, materials, electrical and electronic products and various electronic components, our High low alternating temperature and humidity test chamber can give you a perfect solution.

TTLT Series is able to simulate a wide range of temperature environments, that temperatures ranging from -86°C to +90°C. Torontech can also offer you best solutions based on your own requirements.


Test Area

  • Cabinet made of high quality SUS304 stainless steel
  • Test hole(φ50mm, φ125mm) sealed with silicone screw plug
  • PT100 platinum temperature sensor
  • 2 pieces of adjustable and removable shelves
  • Air Circulation

  • 3 air circulations fans
  • The real panel of test area equipped with chip-type wind board, air flowing out from top of wind board and return into air inlet to achieve air circulation.
  • Cooling System

  • Mechanical compression refrigeration system
  • 2 cascade compressor
  • Environment friendly refrigerant R404a for first stage, R23 for the second stage
  • Control Panel

  • PLC controller
  • Programmable color display touch screen controller.
  • 999 groups/sections programs
  • RS-232 /RS-485 interface, PC Link, LAN network
  • Viewing Window

  • Interior lights
  • Window coated with conducting film to protect operator
  • Size: 250 × 300mm
  • Safety

  • Over temperature protection and water shortage protection
  • Humidifier dry combustion protection and refrigerant high pressure protection
  • Over current protection
  • Earth leakage protection
  • Structures

    2.Sample Shelf
    3.Cable Hole
    The internal material is 304 stainless steel, mirror surface, rust-proof to high and low temperature and moisturecorrosion;Nice ruggedness and long life
    SUS304 stainless steel punching sample shelf 2pcs;Standard load of 50KGS for each layer of sample shelf;The height of the shelf is adjustable and can be removeddirectly to facilitate the various sizes of test samples. Conducive to the air circulation
    A standard test hole, located at the left side of the work room, is provided with a sleeve inside to prevent moisture from entering the insulation layer. Equipped with flange. The standard inner hole diameter is 50mm. Soft silicone plug seal; Metal enclosure closed, beautiful designed

    4.Viewing Window
    Double layer insulating glass 8cm thick, made of tempered glass. The conductive film is located on the interior glass to prevent window frosting, built-in LED light for the work room lighting ;can clearly observe samples. The light control button is located below the controller
    PID programmable color touch screen controller, network connection computer. Can edit 100 programs 100 segment. LIB also can preset program into the controller based on user testing requirements. The set system language is English for standard.
    Install 4 castors for easily moving, and with brakes function. Caster height is adjustable

    Core Function
    Cooling System

    After the liquid refrigerant absorbs the heat of the cooled object in the evaporator, it is vaporized into low-temperature and low-pressure steam, sucked by the compressor, compressed into high-pressure high-temperature steam, discharged into the condenser, and radiated to the cooling medium in the condenser, condensed into a high-pressure liquid, throttling through a throttle valve into a low-pressure low-temperature refrigerant, and again entering the evaporator to absorb heat and vaporize, to achieve the purposeof cycle refrigeration.In this way, the refrigerant completes a refrigeration cycle through four basicprocesses of evaporation, compression, condensation, and throttling in thesystem.
    Air Circulation

    The centrifugal fan is installed at the rear of the chamber body, and the air is uniformly distributed through the air outlet. Air circulation adopts air outlet at top and air return at bottom, and the wind speed and pressure are in compliance with the test standard, and the temperature is stabilized at the moment of switching. The high-quality centrifugal fan is used to strongly supply air circulation, making the temperature distribution in the test area uniform.
    Controller System

    The PID controller as the main control unit to command, operate, detect and redistribute the various components of the equipment to achieve maximum effective use. The temperature control adopts P.I.D. S.S.R. system synchronous coordinated control, which can improve the stability and life of the control components and interface. Screen display function: LCD display, which can display test conditions (including temperature section, cycle number, running time and remaining time, etc.).
    Temperature Sensor

    PT-100 Class A sensor, real-time accurate detection and display of temperature changes at 0.001 degrees.
    Wiring System

    Voltage 380V 50Hz 3 phase. L1, L2, L3, PE, N, grounding protection. Standard 2m long cable
    Protection System
    Over Temperature Protection
    Over Current Protection
    Refrigerant High Pressure Protection
    Refrigerant High Pressure Protection
    Phase Sequence Protection
    Sample Shelf
    Quantity can be increased
    Special sample shelf can be customized
    Cable Wire
    Test Hole
    Diameter 100mm
    Diameter 125mm
    Shape and size can be customized
    Capacitive Temperature Sensor
    Observation Window
    Size can be customized
    Inner glass door
    Hand-in ports
    WiFi connection
    Mobile APP control
    Multi-language controller interface: Russian, French, Polish, Romanian, German

    Install Condition

    Interior Volume
    Heat load
    A: -20°C ~ +150°C
    B: -40°C ~ +150°C
    C: -70°C ~ +150°C
    Temperature Fluctuations
    ± 0.5 ℃
    ± 2.0 ℃
    Heating Rate
    3 ℃ / min
    Cooling Rate
    1 ℃ / min
    Cooling system
    Mechanical compression refrigeration system
    Refrigerating unit
    French TECUMSEH compressor
    R404A, R23
    Heating Element
    Nichrome heater
    • Programmable color LCD touch screen controller
    • PC Link
    • R-232 interface
    Temperature Sensor
    PTR Platinum Resistance PT100Ω/MV A-class, accuracy 0.001°C
    Cooling System
    Mechanical compression refrigeration system
    R404A, R23
    Air Circulation
    Centrifugal wind fan
    • Humidifier dry-combustion protection
    • Over-temperature protection
    • Over-current protection
    • Refrigerant high-pressure protection
    • Water shortage protection
    • Earth leakage protection
    Exterior Material
    Steel Plate with protective coating
    Interior Material
    SUS304 stainless steel
    Thermal Insulation
    Polyurethane foam
    Observation Window
    • Interior lighting
    • Double-layer thermos stability silicone rubber sealing
    View Window Size(mm)
    Timing Function
    0.1~999.9 (second, minute, hour)
    Internal Dimension (mm)
    OverallDimension (mm)
    Power Supply
    220V 50Hz / 380V 50Hz (110V 60hz option with transformer)
    Maximum Noise
    65 dBA
    Environment Conditions
    • Temperature:5 - 45 ℃
    • Relative humidity: ≤ 85%
    • pressure: 86 - 106Kpa
    Space Conditions (mm)
    • Installed on flat floor, with good ventilation.
    • No combustible material, explosive material or strong vibration around
    • No direct sunlight or other heat sources direct radiation.
    • No strong airflow around.
    • No strong electric field around.

    Quote Form


    Contact our sales team for a quotation.

    Please Contact us for pricing, check availability, or ask for additional information about our Low Temperature Test Chamber
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