Bi-Directional Velocity Sensors Monitor Cooling Air and Hot Air Return

May 23, 2024 | Posted By: Degree Controls Inc.

Airflow is an important factor in a data center. By adding air velocity sensing to your data center monitoring system, you can be notified of potential issues right away.

Bi-directional velocity sensors, B500 sensor

Sensor placements will vary based on the data center environment; however, many organizations opt to monitor each cold air supply and hot air exhaust. Bi-directional velocity sensors are often selected by data center managers, engineers, and operators to report airflow levels and detect flow reversals. If air is moving in the wrong direction, cooling capacity is reduced, and the potential for hot spots increases.

Bi-directional velocity sensors, sensor head pan

The B-Series (B300/B500) bi-directional velocity sensors measure air velocity and air temperature and also determine airflow direction. B500 sensors accept a 24 VAC/VDC supply voltage while B300s accept a 4.5 – 15VDC supply voltage. With the choice of velocity profiles ranging from -20 to +20 m/s (-4000 to +4000 fpm), B-Series sensors can be configured with analog or digital outputs to report information back to your base controller. 0-5V, 0-10V, 4-20mA, and digital UART or I²C communication outputs are supported. The probe-style sensor uses conformal coated sensing elements and electronics for environmental protection and is available in different mechanical lengths.

Airflow management plays a vital role in reliable, efficient data center operations. Add the B-Series bi-directional velocity sensors to your data center containment system and gain data-driven insights to protect critical data and IT infrastructure from environmental threats.

Note: Aisle containment makes it possible to cool higher heat loads, and proper aisle containment prevents hot and cold air from mixing.

ASHRAE 90.4 is the Energy Standard For Data Centers. It applies to new and legacy data centers.

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