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Across industries, environmental test chambers ensure consumer safety and drive innovation.

They’re vital to electronics, military and defense, pharmaceuticals, transportation, medical devices, shipping, communications, and more. 

Just as there’s a wide range of industries that utilize chambers, there’s also variance in how companies conduct testing. In fact, it’s safe to say that no two companies’ testing requirements are the same, although they do share one thing: They need chambers that give them precise control over their conditions. 

For temperature only and temperature and humidity testing, that means fast change rates to maximize time, accurate readings (±0.5°C on temperature and +/-2% RH), and the capability to reach extremes if need be. 

Associated Environmental Systems (AES) has built a reputation as a leading test chamber manufacturer by optimizing every aspect of its chambers. Its temperature only and temperature and humidity models give you the high-performance and control you need for all of your cycling and steady-state testing

AES knows how important testing is to the success of your company. Our chambers match the care, research, and ingenuity you put into your products. Here’s what you need to know about the systems and performance of temperature only and temperature and humidity chambers.

WHAT IS THE PRICE OF A TEMPERATURE OR TEMPERATURE AND HUMIDITY CHAMBER?

It’s not an easy question to answer. So much of the price depends on the function. For instance, if you need a temperature or temperature and humidity chamber with fast change rates to accommodate cycling, you’ll need to pay more for it. 

The same is true of size. Smaller, benchtop models carry a significantly smaller price tag than 64-cubic-meter chambers. 

Keep in mind, too, that price is not equivalent to the cost. You could pay a smaller dollar amount upfront—say, for a used chamber—but more in the long term if you constantly have to perform maintenance or repairs on that chamber. 

Let’s narrow it down to two categories, noting that your testing needs and standards you’re trying to meet will ultimately determine your purchase: 

Stability Chamber for Steady-State Testing: 

These chambers are designed to stay at specified conditions for extended periods of time. They have slower change rates, and therefore aren’t intended to be used for cycling. 

AES offers the LH series (a temperature and humidity chamber) for this purpose. They start at $14,658, with the price increasing with size. 

AES’s SD series of benchtop temperature chambers, on the other hand, starts at $13,850.

Performance Chamber for Cycling: 

If you require fast change rates, expect to pay around $20,000 for base models. The exciting news is that AES has modified its FD series (temperature-only floor models) and HD series (temperature and humidity floor models) to enable users to select their desired performance level from four choices for chambers at least 18 cubic feet in volume. 

You can get the performance you need without customization. Optional and custom features will add to the base price. That’s why you should always work with a manufacturer you trust who can explain each addition while being transparent on cost.

TEMPERATURE SYSTEMS

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AES carries a wide variety of top-of-the-line temperature only chambers from benchtops to walk-ins. You can also purchase rack-and-stack test chambers to maximize your lab space and optimize efficiency. Consider an ATPPRIME chamber for the safest, most effective battery testing in the industry, or the ATPFLEX, a battery testing fixture that can be installed into nearly any chamber. Choose from volumes as small as 1 cubic foot to as large as 64 cubic feet and change rates from 3.9°C/minute to 9°C/minute and faster. 

Standard temperature ranges: -40°C to +180°C (-94°F to 356°F) | -70°C to +180°C (-94°F to 356°F)

Precision: ±0.5°C

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Heating System


The heating systems in AES chambers are all-electric and pass air over fast-response, low-watt-density resistance heaters with a ceramic core, ensuring a long, reliable life with no downtime. The combination of airflow, instrument response, and these fast-reacting heaters give highly accurate and straight-line control of temperatures. These heating systems support temperatures upwards of 180°C (356°F), and heaters may be controlled independently or in unison. Heating systems are located in a plenum so that test items are not subject to direct radiation.

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Cooling System


The cooling system in AES chambers consists of a self-contained mechanical refrigeration system with a cascade configuration. You’ll have the option of air-cooling or water-cooling. Air-cooling comes with easier installation and is less expensive than water-cooling. However, it produces slower pulldown rates.

Water-cooling systems result in faster pulldown rates and are more energy efficient, but they require a dedicated, conditioned water supply and are more complicated to install.

You can supplement your system with boost cooling employing liquid nitrogen (N2) or carbon dioxide (CO2) for even faster pull-down rates. It's a great option for stress tests that require rapid cooling. Even without boost cooling, AES standard cascade refrigeration systems have the fastest standard change rates of any environmental test chamber manufacturer.

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Air Circulation


Air circulation is crucial for environmental testing. AES’s chambers have proprietary baffle and fan design combinations. This optimizes temperature conditions within the workspace.

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Safety Features


A high/low temperature control function enables you to adjust testing conditions so they do not exceed a certain temperature limit above or below what is appropriate for a device under testing (DUT). This includes an internal high-temperature safety component and refrigeration system over-pressure safety circuit. These elements combine to ensure your product is protected throughout the testing process.

These chambers are TUV Rheinland certified, as well. 

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TEMPERATURE CHAMBERS AND BATTERY TESTING

In a digital world where handheld electronic devices operate like fifth or sixth appendages, batteries have become essential. Include the added layer of climate change concerns and the need to shift our reliance on petroleum-based energy toward alternative sources, and batteries become even more vital for our future. 

Businesses and consumers see that, which means the demand for reliable temperature and humidity chambers for battery testing is also increasing. This is especially true of high-performing lithium-ion batteries used to power electric vehicles, medical devices, aviation, and telecommunication. Every single battery must be evaluated before being packaged or included in a device shipped to market. 

Companies want safe, long-lasting batteries that can perform at incredibly high levels. With up to 1000 amperage rates, AES battery test chambers expand a company’s ability to conduct battery research and development, enabling them to innovate toward a brighter future. 

The ATPPRIME is an all-in-one chamber solution designed specifically for battery testing, employing heating and cooling systems, as well as humidity to determine durability. Capable of testing almost any battery type, including coin, cylindrical, pouch, prismatic, and pack cells, the ATPPRIME can seamlessly rotate between battery types using universal kelvin connectors. Each connector is safely accessed by sliding out shelves capable of accommodating loads holding up to 48 cells across four levels.

Alternatively, the ATPFLEX provides greater adaptability. Without having to purchase an entirely new chamber for battery testing, this battery fixture is capable of screening for multiple configurations, quantities, and set types. Similarly, the ATPFLEX can test coin, cylindrical, pouch, prismatic, and pack cell batteries.

Either way, the ATP series provides a secure and reliable way to ensure your batteries perform as expected.

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HUMIDITY CONSIDERATIONS

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Need humidity conditions to test your products and components? AES has you covered with precise control of your chambers’ internal workspace.

Humidity Chamber Functions: What Are They Used For?

A number of industries rely on humidity chambers. Humidity is a key component of HASS and HALT testing where companies simulate real-world conditions to discover any defects in their products as well as determine how long they’ll last. In doing so, they can set warranties and expectations for consumers, including proper use. 

This is particularly important for handheld electronics. Think of cellphones. They need to work in desert climates as well as those closer to the ocean. 

Here are just some of the common standards (by industry) that require a humidity component: 

  • The MIL-STD-810 was developed by the U.S. Department of Defense to evaluate equipment’s performance when exposed to different environmental conditions and identify any weaknesses in the equipment. 
  • RTCA DO-160 uses humidity to determine the thermal expansion in the aviation industry and requires extreme temperature changes. 
  • In the telecommunications industry, GR-1081 specifies test procedures for fiber optics. 
  • The International Standardization Organization (ISO) has published thousands of standards that run the gamut from imaging materials to combustion engines and medical devices. 
  • The International Electrotechnical Commission (IEC) sets testing requirements for electrical, electronic, and related technologies such as power generation, semiconductors, and fiber optics in these industries: batteries, solar energy, nanotechnology, marine energy, and more.
  • The International Safe Transit Association (ISTA) has developed standards for the packaging industry to minimize product damage throughout distribution. 
  • SAE International develops and advances standards for companies in aerospace, commercial vehicles, and automotive engineering. 
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Humidity System


AES uses vapor generator systems to give you precise control over the humidity conditions of your chambers’ internal workspaces. The vapor generator system is a closed stainless steel or copper tube. An element heats a constant water source creating vapor or steam that travels through the tube and mixes with conditioned air in a plenum before moving into the workspace. Notably, this water source must be treated and demineralized to avoid contaminating the test.

This system yields a standard relative humidity (RH) range between 20% and 95%. If you need to maintain RH outside that range, you can add a high humidity sensor (up to 98% RH) or desiccant air dryer (as low as 5% RH).

Associated Environmental Systems has developed a Dew Point Calculator to help you determine whether you'll need optional features for your humidity systems. 

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Humidity Chamber Maintenance


Regular maintenance keeps your chambers running for 10 years or more, and it’s crucial, in particular, for humidity chambers. They require properly conditioned water. AES suggests defined ranges for resistivity (0.05MΩ * cm to 6MΩ * cm), conductivity (20µS to 0.167µS), and total dissolved solids (TDS) (10 ppm to 0.083 ppm). The demineralizing cartridges used to condition the water should be checked monthly.

In addition, be aware of any buildup of sediments and sitting water, which can lead to mold or mildew that corrodes metal over time. Don’t worry, though, AES has expert service techs around the country ready to make sure your humidity chambers retain their top performance. 

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A Structure Built to Last

AES’s temperature only and temperature and humidity chambers are built to last with components designed to withstand rigorous testing. The internal workspaces are lined with type 304 stainless steel for a vapor-tight internal construction while the exteriors feature a durable, powder-coat finish over heavy-gauge steel for a long-lasting, clean look. Between the two layers is highly efficient, low k-factor, thermal insulation to ensure safe, accurate, and efficient testing.

A Structure Built to Last

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Vapor-Tight Internal Construction


An internal workspace lined with type 304 stainless steel for a vapor-tight internal construction

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Durable Exterior


An exterior with a durable powder-coat finish over heavy-gauge steel for a long-lasting, clean look

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Low K-Factor Thermal Insulation


Between the two layers is highly-efficient, low k-factor, thermal insulation.

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AESONE CONNECT Instrumentation

The days of standing next to your chambers to observe ongoing tests are over. Most new temperature only and temperature and humidity chambers come standard with AESONE CONNECT, a combination hardware and software solution that enables you to monitor tests remotely. You can view real-time and historical data, create, edit, save, and move between test profiles from anywhere you can access a web browser. 

This reduces labor costs and saves time. For instance, you are informed exactly when a test fails part way through rather than learning after the fact and having to start over again. At any moment you can start, stop, resume, or restart a test. You can jump to any testing step with the ease of remote control. 

Watching from a full-screen monitor, AESONE CONNECT empowers you to design and rearrange tests with visually intuitive plot lines, clear data intervals, and colorful graphs. Furthermore, sharing a chamber is not a security problem. Multiple login authentication methods and user-access permission levels are controlled by the administrator, who can establish expiration dates for each user. 

If your budget can’t afford to purchase a new temperature and humidity chamber, AESONE technology can also be retrofitted to nearly any chamber you own. An AES team member will examine your configuration, retrofit the AESONE XCHANGE hardware to your chamber, and seamlessly integrate it with the AESONE CONSOLE. Notably, well-cared-for chambers can function longer than ten years, outlasting their controller technology. Retrofits enable you to extend the lifespan of your chamber even further. 

AESONE CONNECT Instrumentation

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Remote Test Monitoring


Monitor ongoing tests remotely

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Real-Time & Historical Data


View real-time and historical data

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Build Test Profiles from Your Browser


Create, edit, save, and move between profiles from anywhere you can access a web browser

TEMPERATURE & HUMIDITY CHAMBER RESOURCES AND FAQS

Associated Environmental Systems not only manufactures top-of-the-line temperature only and temperature & humidity test chambers customized to your needs, but also provides resources to support your testing and keep you updated on the latest developments in the industry.

TEMPERATURE CHAMBER CONSIDERATIONS: SYSTEM COMPONENTS & POWER

Before you purchase a test chamber, it's important to understand the system components and power as they pertain to the devices you plan on testing. 

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THE BEST TEMPERATURE & HUMIDITY CHAMBERS FOR BATTERY TESTING

The ideal temperature and humidity battery testing chambers consist of high-performance materials and designs, versatile fixtures, combination hardware and software instrumentation, and more. 

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HOW DOES A HUMIDITY CHAMBER WORK?

Leading test chamber manufacturers build humidity chambers with closed, vapor generator systems. They require properly conditioned water as well as regular maintenance to ensure performance.

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WHAT ARE THE LEADING FUNCTIONS OF A HUMIDITY CHAMBER?

Humidity chambers rely on vapor generator systems to create specified conditions in the workspace. Companies across industries (from packaging to electronics, pharma, communications, and more) test their products in humidity to evaluate the effectiveness of those products in different environmental conditions and set expectations for consumers. 

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NEW IN THE UNIVERSE OF CHAMBERS: AN UPDATE TO THE FD & HD SERIES

New in the Universe of Chambers: An Update to the FD & HD Series

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AES is constantly innovating. After months of work, the latest cutting-edge technology has arrived to its HD Series of temperature and humidity chambers and FD Series of temperature only chambers. Now, when purchasing one of these chambers, you’ll be able to select from four escalating performance levels as a standard option for chambers 18 cubic feet in volume and larger.

  • Thrust: Up to 3.89°C/minute
  • Impulse: 4°C to 6.49°C/minute
  • Warp: 6.5°C to 8.9°C/minute
  • Hyperdrive: 9°C/minute and higher

As they say, time is money, and that includes having to delay testing in order to have a custom chamber manufactured for you. This prolongs your timeline and undermines your business. Alternatively, the updated FD and HD series standard with four performance levels provide you the options you need to guarantee you have the exact change rate and power you need to properly conduct testing—no customization required. 

Request More Information

Associated Environmental Systems is committed to long-term, responsive relationships with our customers. Looking to purchase a new chamber? Have questions about service, support, or retrofitting an existing chamber? 

Don't hesitate to contact us with your questions or challenges.