AVT
Air velocity and temperature transducer with 3 selectable ranges engineered for building automation in the HVAC/R industry measuring air velocity and temperature in ducts for fancoil, valve and electric heater applications. Optionally, an LCD as well as realy outputs for limiting and monitoring are available.
| Measuring values | air velocity, temperature |
|---|---|
| Medium | air or other non-flammable/non-aggressive gases |
| Output voltage | 2x 0..10 V, min. load 1 kΩ |
| Output ampere | 2x 4..20 mA, max. load 400 Ω |
| Output switch contact | AVT LCD relay: relay with change-over contact (volt free contact), 250 V ~ / 6 A, 30 V = / 6 A |
| Power supply | 15..24 V = (±10%) or 24 V ~ (±10%) SELV |
| Power consumption | max. 2 W, AVT-R LCD: max. 2,4 W |
| Measuring range temp. | 0..+50 °C |
| Measuring range velocity | 0..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 velocity | 0..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) |
| Sensor | calorimetric measuring principle |
| Display | LCD 3,5", 45.7 x 12.7 mm, optional, for indication of measured values |
| Enclosure | ABS, cover PC |
| Protection | IP54 according to EN 60529 |
| Cable entry | M16 for wire max. Ø=8 mm, AVT-R LCD: 2x M16 |
| Connection electrical | terminal block, max. 1,5 mm² |
| stainless steel V2A, L=210 mm | |
| Weight | 220 g |
| Ambient condition | 0..+50 °C, max. 85% rH short term condensation |
| Delivery contents | incl. mounting flange |
| Notes | optional with display "LCD", optional with relay, Adjustable Immersion length: 50..180 mm, using mounting flange, adjustable switching threshold and hysteresis |