Air velocity transmitter with 3 field-selectable measuring ranges for measuring and monitoring air velocities in ventilation systems in order to control regulation flaps or damper actuators. An integrated LCD and relay contacts for limiting the air volume are available as options.

Measured valuesair velocity, temperature
Mediumair or other non-flammable/non-aggressive gases
Output voltage2x 0..10 V, min. load 1 kΩ
Output current2x 4..20 mA, max. load 400 Ω
Output switch contactAVT LCD relay: relay with change-over contact (volt free contact), 250 V ~ / 6 A, 30 V = / 6 A
Power supply15..24 V = (±10%) or 24 V ~ (±10%) SELV
Power consumptionmax. 2 W, AVT-R LCD: max. 2,4 W
Measuring range temp.0..+50 °C
Measuring range velocity0..2 m/s, 0..10 m/s, 0..20 m/s, selectable at the device
Accuracy temperature<0,5 K (v> 0,5 m/s), ±0,5 K (typ. at 21 °C)
Accuracy velocity0..2 m/s: <0,2 m/s + 5% of measuring value, 0..10 m/s: <0,5 m/s + 5% of measuring value, 0..20 m/s: <1,0 m/s + 5% of measuring value (typ. at 21 °C)
Sensorcalorimetric measuring principle
DisplayLCD 3,5", 45.7 x 12.7 mm, optional, for indication of measured values
EnclosureABS, cover PC
Protection (IP)IP54 according to EN 60529
Cable entryM16 for wire max. Ø=8 mm, AVT-R LCD: 2x M16
Electrical connectionterminal block, max. 1,5 mm²
Pocketstainless steel V2A, L=210 mm
Weight220 g
Ambient condition0..+50 °C, max. 85% rH short term condensation
Delivery contentincl. mounting flange
Notesoptional with display "LCD", optional with relay, Adjustable Immersion length: 50..180 mm, using mounting flange, adjustable switching threshold and hysteresis

Contact us:

Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0

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