Understanding Airflow Distribution in Environmental Test Chambers

Environmental testing is essential for evaluating how automotive components, coatings, and materials respond to controlled temperature and humidity conditions. Yet one important factor can be overlooked: how effectively air circulates throughout the test chamber.

Even when a chamber reaches its programmed setpoint, airflow may vary between locations. Test fixtures, specimen arrangements, and fan settings can influence circulation, potentially creating differences in the conditions experienced by individual test specimens.

Why Airflow Mapping Matters

Airflow mapping provides engineers with a clearer understanding of air movement throughout a chamber. By measuring air velocity at representative locations, engineers can investigate circulation patterns, identify restricted airflow areas, and compare chamber configurations.

Rather than relying on a single measurement, collecting data at multiple points helps build a more complete picture of the testing environment.

Kanomax Airflow Measurement Solutions

Kanomax offers several instruments suited to different environmental chamber measurement requirements:

• Climomaster 6501: A portable anemometer with interchangeable probes for air velocity spot checks and selected temperature and humidity measurements.

• Airflow Transducer Model 6333: Designed for fixed-point measurements, featuring analog output and RS-485 communication.

• Multi-Channel Anemomaster Model 1580: Supports simultaneous airflow measurements across up to 12 probe channels.

• Multi-Channel Anemomaster PRO Model 1590: A scalable system supporting up to 144 measurement channels using Model 1591 hub units.

Multi-channel measurement systems are particularly valuable when engineers need to observe airflow at multiple locations during the same test cycle.

Instrument and probe selection must account for chamber temperature, humidity, airflow direction, and operating conditions. Hot-wire sensors must remain free from condensation.

Supporting More Consistent Automotive Testing

By incorporating air velocity measurements alongside temperature and humidity data, automotive testing teams can better understand chamber circulation and investigate environmental variations.

For a more detailed explanation of measurement procedures, probe selection, and available instrumentation, read the complete article:

How to Map Airflow Inside Environmental and Weathering Test Chambers

https://kanomax-usa.com/environmental-chamber-airflow-mapping/

Visit Kanomax USA at Booth T1360 during Automotive Testing Expo 2026, October 27–29 in Novi, Michigan, to discuss airflow measurement solutions for environmental chamber testing.