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Configurable Air Velocity Sensing and Controls for Duct Airflow Measurement

Configurable Air Velocity Sensing and Controls for Duct Airflow Measurement

Configurable Air Velocity Sensing and Controls for Duct Airflow Measurement   
HVAC Series "Analyzing Airflow" Part 3:  

Note: Part 4 of our HVAC Series – Analyzing Airflow reviews airflow sensors as key elements of HVAC control systems.  

Embedded Air Velocity Sensing Provides Versatility  
The embedded air velocity sensing platform by Degree Controls empowers users with a range of configuration options for the many diverse industry applications that exist. A variety of velocity ranges, mechanical lengths, supply voltages, output communication types, as well as probe and remote head sensor styles are available.  

°C SPAR with Analog Output

For clients with their own data loggers, or where analog based communication and control systems have been pre-established, the °C SPAR can be configured with our F-Series of air velocity and temperature sensors. The voltage output may be configured 0-5V or 0-10V, and can be augmented with simultaneous digital communication.

Embedded Solution for Air Velocity Measurement In-Duct

Degree Controls has the products and experience to meet the many airflow measurement and testing scenarios faced by our clients.  

We met application specific requirements to convey average velocity across a duct area to the client’s BMS (Building Management System) as a 0-10V analog output with a set of our F500 series sensors.  For this large duct application, the sensors were modified to communicate in a master/slave arrangement over addressed UART communication: 

1) Each slave sensor communicates velocity reading(s) to its neighboring slave, or master. 

2) The master sensor receives velocity readings from all slave sensors.  

Set of F500 Master/Slave Air Velocity & Temperature Sensors

The master airflow sensor first records its own velocity reading and then averages all readings from sensors in the network. Next, the master sensor uses its 0-10V analog output to transmit the average velocity to the BMS or monitoring system. 

All sensors are powered by universal 24VAC. Sensors are connected with a latching connector and 0.6 m [2 ft] of cable. The master sensor itself has 2 m [6.6 ft] flying leads to connect to the BMS system. 

The master sensor can communicate to as many as 15 slave sensors. This flexible solution ships as a kit, and master and slave sensors already addressed. 

VIDEO: Airflow Sensors for HVAC Ducts

Air Flow Sensors for HVAC Ducts

Airflow Switch for HVAC Duct

S Series Air Flow Sensors for HVAC Ducts

The S-Series is a specialized platform of air velocity and temperature switches optimized for demanding applications including laboratory, HVAC, high-performance electronics, and more. With both relay and open drain outputs available and configurable alarm behaviors, the S-Series is the most customizable, high-performance airflow switch platform on the market.

Non-Directional Airflow Sensor for HVAC Duct

F Series Air Flow Sensors for HVAC Ducts

The F-Series is a platform of non-directional air velocity and temperature sensors optimized for demanding applications including laboratory, HVAC, high-performance electronics, and more. With both digital and analog outputs, which can be used simultaneously, the F-Series transducer sets a new standard in flexible design integration and airflow control.

Multi-Point Airflow Sensing for HVAC Ducts

C Spar Air Flow Sensors for HVAC Ducts

Fully-configurable °C SPAR Sensor Pole Array system for linear air velocity, humidity & temperature measurement. System is custom built to meet user-defined specifications including pole dimensions, calibration ranges, and sensor quantities. Aggregate sensor data with the °C Port Data Collection Instrument.

Consult with a Airflow Sensor Specialist

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Alex Sargent 
Alex joined Degree Controls, Inc. in 2018 bringing with him nearly a decade of experience with sensor technology and instrumentation. As Technical Sales Engineer he handles the sales of embedded sensors and consults some of the world's largest manufacturers on the use of these instruments.