CATEGORIES

    Alternating Humidity and Heat Test Chamber

    Overview Products Knowledge Standards Terms
    The alternating damp heat test chamber uses a temperature and humidity controller and a humidification system to simulate alternating environments of high temperature and high humidity with low temperature and high humidity within a sealed space, subjecting materials to periodic damp heat stress. It is used to test the aging resistance, deformation, and changes in electrical performance of products such as coatings and plastics under alternating temperature and humidity conditions. It is commonly applied in environmental adaptability testing for electronic components and automotive parts.
    Selection
    When selecting, confirm that the temperature and humidity range and fluctuation meet the test standards. The inner chamber material should be corrosion-resistant, and the observation window should be anti-condensation. The program editing should support multi-segment cycles, and consider the load capacity of the sample racks and the air circulation design inside the chamber. Data logging functions and safety protection devices are essential configurations. Choose an appropriate size based on the laboratory space, and during maintenance, pay attention to cleaning the water tank and replacing the filter.
    Min-TEMP
    Max-TEMP
    Min-humidity
    Max-humidity
    volume
    Temp Uniformity
    TEMP fluctuation
    Humidity deviation
    Humidity Uniformity
    Test Types
    Cooling Method

    Terms

    Condensation Test Chamber
    Fatigue testing
    ET eddy current flaw detector
    Temperature and Humidity Cycling Test Chamber
    High and low temperature humidity vibration combined environmental test chamber

    Standards

    Active GB/T 32065.7-2015
    Environmental test methods for oceanographic instruments—Part 7：Damp heat, cyclic
    Active GB/T 2423.4-2008
    Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat，cyclic ( 12h+12h cycle)
    Active GB/T 2423.18-2021
    Environmental testing—Part 2: Test methods—Test Kb:Salt mist, cyclic（sodium chloride solution）

    Instruments

    Lugong ST-1000LA Humidity Chamber high and low temperature heating and humidity alternating Environmental performance equipment
    Lugong ST-1000LA Humidity Chamber high and low temperature heating and humidity alternating Environmental performance equipment

    Using Japan's Panasonic Compressor and the United States DuPont environmental protection refrigerant, temperature control accuracy of +/- 0.5 ℃, Temperature resolution 0.01 ℃, with program control and Data storage functions, support high temperature, low temperature and heat and humidity alternating test.

    $ 5479.00
    AISRY NBC-50L-20 programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating test chamber
    AISRY NBC-50L-20 programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating test chamber

    Adopt equilibrating Conditioning Control system, Temperature range -20~ 150 ℃, humidity control 20~ 98% RH, equipped with imported Compressor and multi-stage PID calculation, ensure uniform and stable heat preservation Humidity, energy saving and high efficiency.

    $ 2457.00
    YIHENG BPS-50CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber Fluorine-free design temperature limit alarm
    YIHENG BPS-50CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber Fluorine-free design temperature limit alarm

    Temperature range -10~ 100 ℃, humidity control 35~ 95% RH, with independent temperature limit alarm system and multi-stage programmable PID controller to ensure safe operation and precise control of temperature and Humidity.

    $ 3078.00
    APKJ AP-HX-150D programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-150D programmable Humidity Chamber high and low temperature alternating environment test

    Temperature range -60~ 150 ℃, humidity control 20~ 98% RH, multi-wing air supply circulation to ensure uniform temperature and humidity, support LAN interface remote monitoring and data export.

    $ 6383.00
    Lugong ST-25LA programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating environment simulation
    Lugong ST-25LA programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating environment simulation

    Using Nidec compressor and DuPont environmental protection refrigerant, Humidity control accuracy of 0.1 ℃, equipped with double-decked vacuum heating defrosting observation window and stainless steel sample holder, support multi-stage programming and Data storage.

    $ 3301.00
    YIHENG BPS-800CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber
    YIHENG BPS-800CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber

    Temperature range -10~ 100 ℃, Temperature resolution 0.1 ℃, using programmable PID controller and TMHM equilibrating Conditioning method, temperature and humidity control accurate fluctuation is small, with independent temperature limit alarm system and a variety of Safety protection functions.

    $ 7871.00
    YIHENG BPS-1000CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber Multi-stage programmable PID control
    YIHENG BPS-1000CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber Multi-stage programmable PID control

    Adopt multi-stage programmable PID controller to achieve accurate temperature and Humidity control, with small fluctuations; unique air duct circulation system to ensure uniform temperature and Humidity; with 100 sets of programs and 1000 segments capacity, support RS-232 or RS-485 communication interface, easy data monitoring and remote operation.

    $ 9152.00
    APKJ AP-HX-150B programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-150B programmable Humidity Chamber high and low temperature alternating environment test

    The 7-inch touch controller supports 120 program settings, is equipped with a multi-wing air supply system to ensure a uniform temperature and humidity of +/- 2 ° C, and has a LAN interface to realize computer remote control and data recording functions.

    $ 4672.00
    AISRY NBC-225L-60 programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating test chamber
    AISRY NBC-225L-60 programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating test chamber

    Adopt equilibrate Conditioning Control system, Temperature Humidity range -60~ 150 ℃, 20~ 98% RH, Equipped with imported Compressor and environmentally friendly refrigerant, High Accuracy and stable operation. Special air circulation design ensures uniformity, built-in multiple protection functions, prolong equipment life.

    $ 3640.00
    YIHENG BPS-250CA Constant Temperature and Humidity Chamber Programmable test Chamber Full fluorine-free design
    YIHENG BPS-250CA Constant Temperature and Humidity Chamber Programmable test Chamber Full fluorine-free design

    Temperature range -20~ 100 ℃, Humidity deviation +/- 3% R. H, using all fluorine-free environmental protection design, multi-stage programmable PID controller to ensure accurate and stable insulation Humidity control, with independent temperature limit alarm system to ensure safety.

    $ 6194.00
    YIHENG BPS-250CL Constant Temperature and Humidity Chamber Programmable Touchscreen Fluorine Free Design
    YIHENG BPS-250CL Constant Temperature and Humidity Chamber Programmable Touchscreen Fluorine Free Design

    Adopt fluorine-free environmental protection design, Humidity Control Range 35-95% RH, input Power 2300W, with PID automatic calculation function, ensure accurate and stable thermal insulation Humidity control, equipped with multiple Safety protection systems.

    $ 5405.00
    APKJ AP-HX-225B programmable Humidity Chamber high and low temperature heating and humidity test Chamber
    APKJ AP-HX-225B programmable Humidity Chamber high and low temperature heating and humidity test Chamber

    Adopt 7-inch touch controller to support 120 program settings, equipped with multi-wing air supply system to ensure uniform distribution of temperature and humidity, Temperature Fluctuation +/- 0.5 ℃, humidity deviation +/- 2% R.H to ensure test accuracy.

    $ 5576.00
    APKJ AP-HX-150C programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-150C programmable Humidity Chamber high and low temperature alternating environment test

    Equipped with 7-inch touch controller to support 120 program settings, multi-wing air supply circulation to ensure uniform distribution of temperature and humidity, studio volume 150L and Temperature Fluctuation +/- 0.5 ℃, with USB data export and LAN remote control function.

    $ 4785.00
    APKJ AP-HX-800A programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-800A programmable Humidity Chamber high and low temperature alternating environment test

    Equipped with a 7-inch touch controller to support 120 program connections, multi-wing air supply circulation to ensure uniform distribution of temperature and humidity, temperature control accuracy of +/- 0.5 ° C and complete safety protection mechanism, suitable for various material Reliability testing.

    $ 7287.00
    APKJ AP-HX-30B programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-30B programmable Humidity Chamber high and low temperature alternating environment test

    With 120 sets of program control capabilities, it supports a wide temperature range test from -20 ° C to + 150 ° C. It uses a multi-wing air supply system to ensure uniform distribution of temperature and humidity, and is equipped with complete safety protection devices to display fault status in real time.

    $ 4108.00

    Articles

    High and low temperature alternating test chamber for measuring low-temperature embrittlement temperature of plastics
    This article introduces how to use a high-low temperature alternating test chamber to determine the low-temperature brittleness temperature of plastics.
    Eddy current thickness gauge measures metal coatings on non-conductive substrates.
    The eddy current thickness gauge utilizes the principle of electromagnetic induction, generating an alternating magnetic field through the probe coil to induce eddy currents in the metal coating, thereby measuring thickness based on changes in coil impedance.
    Eddy current thickness gauge detects coatings on non-ferrous metals.
    The eddy current thickness gauge operates on the principle of electromagnetic induction, generating an alternating magnetic field through the probe coil, which induces eddy currents on the surface of non-ferrous metal substrates.
    The essential difference between thermal shock test chambers and high-low temperature alternating test chambers.
    Both thermal shock test chambers and temperature cycling test chambers are used to test the temperature resistance of products, but their core differences lie in the method and purpose of temperature change.
    Differences and Selection Between Alternating Damp Heat and Constant Damp Heat Test Methods
    Based on the patterns of humidity and temperature changes, they are mainly divided into two categories: constant damp heat tests and cyclic damp heat tests. Both simulate the effects of humid environments on products, but there are significant differences in their stress application methods, failure mechanisms, and applicable standards.