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High Low Alternating Temperature Humidity Test Chamber Manufacturers, Suppliers & Exporters in India

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Temperature and Humidity Control Chamber
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High Low Alternating Temperature Humidity Test Chamber
  • High Low Temperature & Humidity Chamber

High Low Temperature/Humidity Test Chambers

Products don’t fail in steady-state conditions. They fail in transitions, the moment a component heats up rapidly after a cold soak, the instant a sealed enclosure experiences condensation as temperature swings from freezing to tropical. Real-world environmental stress is cyclical and relentless, and testing against it requires a chamber that can match that intensity with complete precision. At ACMAS Technologies Pvt. Ltd. (WEIBER), our high low alternating temperature humidity test chambers are built for exactly this, the demanding, repetitive, high-stakes business of cycling products through thermal and humidity extremes to find weaknesses before the field does.

What Is a High Low Alternating Temperature Humidity Test Chamber?

A high low alternating temperature humidity test chamber is a controlled environment unit that cycles test specimens through programmed high and low temperature extremes, from as cold as -70°C to as hot as +150°C, while simultaneously managing relative humidity between 20% and 98% RH. Unlike a static temperature/humidity chamber that holds a single set point, an alternating chamber ramps between temperature extremes at programmable rates, dwelling at each extreme for defined periods.

This cycling capability allows engineers to simulate: thermal fatigue from repeated heat-cool cycles, moisture ingress during temperature transitions, condensation effects on sensitive electronics, seal and gasket performance under expansion and contraction, and solder joint and PCB reliability under thermal stress. A high low alternating temperature test chamber is essentially a time machine for product lifetime, compressing years of thermal cycling into days of laboratory testing.

If your test requirement involves temperature change rates, repeated cycling, or thermal shock simulation at moderate transition speeds, a dedicated high low alternating humidity test chamber is the correct tool, a standard chamber will not give you accurate or reproducible results.

Why Engineers Choose ACMAS-WEIBER for Alternating Temperature Testing

When an engineer or quality manager specifies a high low alternating temperature test chamber, they are trusting it with product qualification data that will go into reports, submissions, and launch decisions. That trust has to be earned. Here is why ACMAS-WEIBER earns it:

  • Wide temperature range: -70°C to +150°C with ≤2°C uniformity — covers the majority of IEC, MIL-STD, and automotive OEM test specifications
  • External SS-304 steam humidification with dew-point dehumidification — humidity control that stays accurate through temperature transitions, not just at steady state
  • Balanced Thermo Control for optimum working temperatures and fast ramp rates — reduces total test cycle time
  • Imported close-circuit compressors capable of operating in high-heat conditions for direct and immediate cooling
  • Microprocessor-based programmable touch screen controller with integrated LCD — full programme visibility at all times
  • RS-232 or RS-485 PC connectivity — integrates directly with your existing test data management systems
  • Multiple test port configurations: 25mm, 50mm, 100mm — accommodating cable and instrumentation pass-throughs
  • Portable: high-quality fixable PU wheels for repositioning within laboratory environments
  • CE and ISO certified — documentation your quality system and international customers accept

Our high low alternating temperature humidity test chambers are installed in automotive supplier labs, electronics manufacturing QA departments, aerospace component test facilities, defence research establishments, and academic materials research departments across India and internationally.

  • FEATURES
  • KEY FEATURES
  • TECHNICAL SPECIFICATIONS

Features of Our High Low Alternating Temperature Humidity Chambers

These High Low Alternating Temperature Humidity Test Chambers use microprocessor based programmable touch screen controllers with integrated LCD display for accurate temperature and humidity control. The equipment is quite versatile in application and can operate across a very wide temperature and humidity range, ranging from -70°C to +150°C and 25% to 98% RH. It uses a unique balanced thermo control measure for maintaining optimum working temperatures and can achieve very fast heating rates and cooling rates for faster heating or cooling of the test specimen. The efficient humidity control is achieved through an external stainless steel electric steam humidification mode and a dehumidification mode that is based on dew point condensation. The refrigeration system comprises of imported close circuit compressors and is capable of operating automatically in high heat conditions for direct and immediate cooling. These equipments use RS-232 or RS-485 interface for PC connectivity.

The Weiber High Low Humidity and Temperature Test Chambers are designed in accordance with international standards of quality and safety and are compliant with GB/T2423.1-2001, GB/T2423.2-2001, GB/T2423.3-1993, GB/T2423.4-1993 standards. They are available in a wide variety of sizes and configurations and can be completely customized to suit specific requirements. These equipments are easy to install and come equipped with an easy to use graphic user interface for ease of use.

Precision Control: HMI+PLC, Programmable Cycling & Data Logging

The control architecture of a high low alternating humidity test chamber determines whether your test results are scientifically valid or merely approximate. WEIBER chambers use a microprocessor-based programmable touch screen controller with integrated LCD display, giving the operator complete visibility of current conditions, set points, and programme status on a single screen.

Programmable cyclic operation allows you to define temperature ramp rates, dwell times at high and low extremes, and humidity profiles through each transition — saving complete test programmes that can be recalled and repeated with one-touch operation. The RS-232/RS-485 PC interface connects directly to data acquisition systems or your laboratory LIMS, enabling automated 24-hour data logging without manual recording.

The chamber is also compliant with GB/T2423.1-2001, GB/T2423.2-2001, GB/T2423.3-1993, and GB/T2423.4-1993 standards. Custom configurations for IEC 60068-2-14, MIL-STD-810, and automotive OEM test specifications are available on request.

Key Features of Our High Low Alternating Temperature Humidity Chambers

  • Safe and efficient design
  • Easy to use graphic user interface
  • Easy to install
  • High quality, fixable PU moving wheel at the bottom of the chamber for increased portability
  • Easy to clean, corrosion resistant stainless steel surfaces
  • Economical and versatile application
  • Microprocessor based controllers with integrated LCD display
  • Imported close-circuit compressors for efficient refrigeration control
  • Compliant with GB/T2423.1-2001, GB/T2423.2-2001, GB/T2423.3-1993, GB/T2423.4-1993 standards

    Temp. range 0℃~100℃
    Temp. uniformity ≤2°C
    Humidity Range 30% ~ 98% R.H
    Humidification mode External isolated, stainless steel electric steam humidification mode occurs
    Power supply ACø220V·50HZ/380V·50HZ
    Dehumidification mode Condensation method using the dew point temperature of the evaporator coil dehumidification mode laminar contacts

High Low Alternating Humidity Test Chamber Suppliers & Exporters — India and Worldwide

As established high low alternating temperature humidity test chamber manufacturers and suppliers, ACMAS–WEIBER serves quality and reliability laboratories in India and across international markets including the Middle East, Europe, Germany, Japan, Southeast Asia, Africa, and the United States.

Within India, our high low alternating temperature test chambers are installed in automotive OEM and Tier 1 supplier quality labs, electronics manufacturing facilities, DRDO and defence research establishments, aerospace MRO organisations, and university research departments. For export orders, all equipment is CE-certified and shipped with export-compliant packaging, multilingual documentation, and remote commissioning support.

Whether you are a procurement engineer specifying for a new test lab, a QA manager replacing ageing equipment, or an R&D team commissioning specialised chambers for a new product programme, we are here for a direct, no-pressure technical conversation about your requirements.

Frequently Asked Questions

Q: What is a high low alternating temperature humidity test chamber?

A: A high low alternating temperature humidity test chamber cycles specimens through programmed high and low temperature extremes while controlling relative humidity. It simulates years of real-world thermal and humidity cycling stress in accelerated laboratory conditions, testing product durability under repeated environmental transitions.

Q: What is the temperature range of your high low alternating temperature test chamber?

A: Our standard chamber operates from -70°C to +150°C with ≤2°C uniformity. Custom ranges are available to meet specific test standards or product requirements.

Q: What humidity range does the alternating temperature humidity chamber support?

A: Our chambers support 20% to 98% RH with external SS-304 electric steam humidification and dew-point condensation-based dehumidification — maintaining humidity accuracy through temperature transitions.

Q: What industries use high low alternating temperature test chambers?

A: Electronics, EV and battery, automotive, aerospace and defence, telecommunications, medical devices, and materials research. Any industry where product qualification requires thermal cycling under IEC, MIL-STD, or OEM test specifications.

Q: What standards do your chambers comply with?

A: Standard compliance includes GB/T2423.1-2001, GB/T2423.2-2001, GB/T2423.3-1993, and GB/T2423.4-1993. Custom configurations available for IEC 60068-2-14, MIL-STD-810, and automotive OEM specifications.

Q: Do you export these chambers outside India?

A: Yes. We export to the Middle East, Europe, Southeast Asia, Africa, Japan, and the United States. CE-certified with export-compliant packaging and international technical support.

Q: Can these chambers be customised?

A: Yes. We customise for specific temperature ranges, chamber volumes, ramp rates, humidity profiles, test port configurations, and test standards including MIL-STD-810, IEC 60068-2, and automotive OEM specifications.

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