Air Velocity Transmitter

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Product Description

The AVT is an electronic air velocity and temperature transmitter for air and non-combustible gases with optional relay output.

AVT air velocity transmitters are engineered for building automaton in the HVAC/R industry. They are electronic air velocity and temperature transmitters for air. They measure air velocity and temperature in ventilation ducts, with field selectable options for measurement range and output settings in a single device.

AVT has a duct mount probe and an adjustable duct flange suitable for round or rectangular ducts.

AVT series devices include:

Separate readings and outputs for air velocity and temperature
Proportional output options: voltage (010 V) and current (420 mA)
PID controller for air velocity (-D models)
Three field selectable measurement ranges for air velocity, selectable with jumpers (models without display)
Freely selectable measurement range for air velocity via menu (-D models)
Field selectable measurement units (-D models):
air velocity: m/s, ft/min
temperature: Celsius, Fahrenheit

AVT series device options offer:

Display (-D models)
Field adjustable relay (-R models)
Modbus (-MOD models)

Optional relay output : Will work as Air flow Switch Technical Details :

Air velocity measurement:	Measurement range: 02 m/s, 010 m/s, 020 m/s, freely selectable Accuracy (typ at 25 C): v 0.15 m/s and 2 m/s (0.2 m/s + 2 % from reading) v > 2 m/s and 10 m/s (0.5 m/s + 3 % from reading) v > 10 m/s (1.0 m/s + 3 % from reading)
Temperature measurement:	Measurement range: -2550 C (probe) Accuracy (25 C): 0.5 C (air velocity > 0.5 m/s)
Measuring units:	Air velocity: m/s or ft/min Temperature: C or F
Supply voltage:	24 VDC 10 % / 24 VAC 10 %
Current consumption:	max. 80 mA + 40 mA with mA output + 10 mA with relay option (DC supply voltage)
Output signal 1 (T out [C]) :	010 Vdc, load > 1 k 420 mA, load 20400
Output signal 2 (v out [m/s]) :	010 Vdc, load > 1 k 420 mA, load 20400
Optional relay output:	250 Vac, 6 A res., adjustable operating direction, switching point and hysteresis
Operating temperature:	-2550 C (probe) 050 C (transmitter housing)
Probe:	Stainless steel, adjustable immersion length, mounting flange included
Protection standard:	IP54, cable downwards