HVAC Pressure Sensors for Air Flow Monitoring and Filter Status

HVAC pressure sensors are essential for maintaining optimal performance and energy efficiency in heating, ventilation, and air conditioning systems. These sensors monitor air filter status, duct static pressure, and pressure differentials to ensure proper airflow and system operation.

Monitoring data center positive pressure with a low-range differential transducer - Low-range differential pressure transducer for verifying and monitoring critical positive air pressure between a data center equipment room and adjacent areas, ensuring compliance with required ≥5 Pa and ≥10 Pa thresholds.
Measuring HVAC plenum and sub-floor air pressure in data centers - Monitoring the critical air pressure gradients in data center sub-floors, server rooms, and ceiling plenums. Low range differential pressure transmitter provides stable gauge pressure readings for optimizing HVAC and cooling efficiency.

Low-range air pressure monitoring in raised floor plenums using a wireless SNMP gateway - This application required a robust method for maintaining constant pressure in a data center's underfloor plenum. The solution combines a sensitive ±25 Pa differential pressure sensor with a wireless transmitter and an Ethernet gateway that provides SNMP protocol support for seamless integration with existing network monitoring systems.
Monitoring hot and cold aisle containment in datacenters using a differential pressure transmitter - Low range differential pressure transmitter with a local display was used to maintain precise room pressurization in a mission-critical datacenter environment for improved thermal management.
Wireless differential pressure monitoring for room overpressure using a modbus gateway - Monitoring room pressure differentials without running new cables by utilising 4-20mA DP sensor converted into a battery-powered wireless node that integrates directly into a local SCADA system via a Modbus RS485 gateway.
Wireless environmental sensors with custom MQTT SCADA system for energy management IoT platform - An energy management specialist required a multi-point wireless sensor network with specific accuracy requirements and a gateway that could output to their own MQTT-based SCADA system. This explains the selection of sensors and the dual gateway solution offered, covering both Modbus RTU and cellular MQTT options.
Monitoring AHU cooling coil efficiency with a DP transmitter - Low-range differential pressure transmitter for integration with a USB data acquisition module to monitor the efficiency of AHU cooling coils, enabling a predictive maintenance schedule based on real-time data.
HVAC chilled water wireless pressure monitoring in BMS - Upgrade your Building Management System with a reliable wireless pressure sensing system. This case study explores the implementation of a 0-10 bar gauge wireless transducer and receiver pair for HVAC applications, highlighting the 'plug and play' installation and long-term, low-maintenance operation.

20 Pa DP range 0-10V output air pressure sensor for building management use - A low range 20 Pa range differential pressure sensor, ideal for monitoring filters, ventilation ducts, and HVAC systems in commercial and residential buildings.
Negative room pressure monitor and logger for multiple zones - Monitoring system to measure negative room pressure inside each of five interior zones to eliminate the spread of dust.
R22 and R410A refrigerant compatible 400 psi g pressure transmitter - All welded OEM pressure transmitter for use on refrigeration application with R22 and R410A refrigerant up to 400 psig.
400 psi g HVAC/R pressure transducer with 0.5-4.5Vdc ratiometric output - Ratiometric output pressure transducer with a 0.5 to 4.5 volt output and a measuring range of 0 to 400 psi gauge for HVAC/R (heating, ventilation, air conditioning and refrigeration) applications.

Draft Pressure Sensors - Find low-pressure transducers & transmitters (inWC, mbar, Pa) designed for draft measurement in air handling, combustion control, and ventilation applications.

Find out more about HVAC Pressure Sensors to determine which product options and capabilities will best meet your application requirements.

HVAC pressure sensors play a critical role in maintaining the efficiency, safety, and comfort of heating, ventilation, and air conditioning systems. These sensors measure pressure differentials within the system to provide valuable insights into system performance and enable automated control.

Applications

Air Filter Monitoring: Pressure sensors can be used to monitor the pressure drop across air filters. As filters become clogged, the pressure drop increases, indicating the need for filter replacement. This ensures optimal air quality and system efficiency.
Duct Static Pressure Measurement: Measuring duct static pressure is crucial for maintaining proper airflow in HVAC systems. Pressure sensors can accurately measure the pressure within the ducts, allowing for adjustments to fan speed and damper positions to optimize airflow and system balance.
Fume Hood Monitoring: In laboratories and industrial settings, fume hoods rely on proper airflow to exhaust hazardous fumes. Pressure sensors monitor the pressure differential within the fume hood, ensuring safe and effective ventilation.
Building Pressurization Control: Maintaining a slightly positive pressure within a building is essential for preventing the infiltration of outside air and contaminants. Pressure sensors can monitor building pressure, enabling automated control systems to adjust ventilation rates and maintain optimal pressurization.
Fan and Blower Control: Pressure sensors can be used to monitor the performance of fans and blowers. By measuring the pressure generated, these sensors can detect issues such as fan wear or blockages, enabling proactive maintenance.
Refrigerant Pressure Monitoring: In air conditioning systems, pressure sensors monitor the refrigerant pressure to ensure efficient operation and prevent leaks. These sensors can also be used to detect refrigerant charge levels.
Differential Pressure Flow Measurement: By measuring the pressure drop across a flow element such as an orifice plate, HVAC pressure sensors can accurately determine the flow rate of air or other gases in the system. This is essential for applications such as VAV (Variable Air Volume) systems and energy management.
Cleanroom Pressure Control: Maintaining a consistent pressure differential between different cleanroom areas is critical for preventing contamination. HVAC pressure sensors are used to monitor and control the pressure cascade, ensuring that air flows from cleaner to less clean areas.
Building Pressurization Control: Pressure sensors can be used to monitor and control the overall pressure of a building relative to the outside environment. This is important for maintaining occupant comfort, preventing drafts, and minimizing the infiltration of pollutants.