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What is the difference between a transmitter, intelligent sensor and sensor controller?

Sensors in an HVAC environment
Sentera offers devices to measure or control following parameters: temperature, relative humidity, CO2, air quality (TVOC), CO, NO2, ambient light, differential pressure, volume flow and air velocity.

transmitter or sensor is a device that measures a certain parameter. The device translates this measured value into an analogue output (0-10 VDC / 0-20 mA / PWM) or Modbus RTU register.

An intelligent sensor has the possibility to define different ranges for different parameters. These types of sensors only have one single output. When all measured values are at their minimum range, the sensor output will remain at its minimum value. When one of the measured values approaches the maximum range, the sensor output will also increase towards its maximum. This functionality makes it possible to control air flow in function of different parameters with a simple, intelligent sensor. The parameter with the narrowest range has the highest influence on the sensor output.

A sensor controller offers the possibility to define a setpoint (via Modbus RTU). By controlling its output, the sensor controller will try to keep the measured values as close as possible to the setpoint values.

Click here to discover our range of HVAC sensors.

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