The AVT is an electronic air velocity and temperature transmitter for air and non-combustible gases with optional relay output. The AVT air velocity transmitters are electronic air velocity and temperature transmitters for air. They measure airvelocity and temperature in ventilation ducts using a duct mount probe.The transmitter provides separate readings and outputs for air velocity and temperature. The transmitter has onevelocity output and one temperature output. The available output signal modes are voltage (Vdc) and current (mA).The voltage output is selectable.The transmitter options include:• Display (-D models)• Field adjustable relay (-R models)• Modbus RTU communication (-MOD models)• Three probe lengths• 112 mm (-100 models)• 212 mm (standard models)• 412 mm (-400 models)The models without a display have three field select-able measurement ranges for air velocity. You can select themeasurement range with jumpers.The -D models provide a freely selectable measurement range for air velocity. You can select the measurement rangevia the device menu (-D models).The -D models have a PID controller for air velocity. The PID controller controls the output according to the airvelocity setpoint you define for the controller.You can configure the device setings using:• the device menu (-D models)• Modbus communication (-MOD models)The transmitter comes with an adjustable duct flange suitable for both round and rectangular ducts.The AVT air velocity transmitters are typically used in building automation systems in the HVAC/R industry for inductair flow and velocity monitoring, in-duct temperature monitoring, and VAV applications.
