VENTUS Ultrasonic Wind Sensor
Extremely precise and maintenance-free measurement of wind velocity and wind direction as well as calculation of acoustic virtual temperature. The VENTUS ultrasonic wind sensor is designed without mechanical parts as they have been used with traditional "cups and vanes". The digital or analog output delivers instantaneous, average, min or max value with flexible measuring rate. The VENTUS is heated in case reaching critical ambient conditions. Made for cold climate! Recommended for: wind turbines, marine/ships, meteorology or building automation. The following outputs/protocols are available: NMEA, ASCII, UMB and 4.. 20 mA analog.
VENTUS-Ultrasonic Wind Sensor is heated in case reaching critical ambient conditions. Made for cold climate!
VENTUS is a seawater-resistant wind meter which in addition to determining wind direction and wind speed is also capable of calculating virtual temperature. The equipment is connected by way of an 8 pole screw connector. The measured values can be requested over a variety of interfaces:
- RS485 interface in half or full duplex
o UMB binary protocol
o UMB ASCII protocol
o NMEA protocol
- Analog data output of 2 adjustable channels with 4-20 mA
Recommended for:
- wind turbines
- marine/ships
- meteorology
- building automation
During commissioning, configuration and measurement polling takes place using the UMB-Config-Tool (Windows® PC software).
Technical data
Dimensions Ø ca. 150mm, height ca. 200mm
Weight Approx. 1.7kg
Permissible ambient temperature -40..+60°C (with heating) with heating 24 VDC, max. 240 VA (140W+100W)
Bus operation Up to 32 devices
Operating voltage electronics 24 VDC ±10% or 24 VDC/1.2 VA
Electrical connection 8 pole plug
Housing material Aluminium, seawater-proof
Protection type IP65
Pole diameter 50mm / 2"
Factory certificate Yes
Data output digital
Interface RS485 semi-/full duplex, isolated
Baud rate 1200-57600
Measurement rate instantaneous value 1-10s
Measurement Avg (arithmetic, vector), Min, Max 1...10min
Status Heating, sensor failure
Data output analog
Data output analog Only semi-duplex mode
Output signal 4-20 mA (instantaneous, avg, min, max)
Load Max. 300 Ohm
Resolution 16 bit
Jarring test According to IEC 60945
Corrosion test According to MIL-STD-810 Method 509.3
Ice-free test According to MIL-STD-810F Method 521.2
Wind direction
Principle Ultrasonic
Measuring range 0 .. 359.9 °
Unit °
Accuracy ± 2° RMSE >1.0m/s
Resolution 0.1 °
Wind speed
Principle Ultrasonic
Measuring range 0 .. 65 m/s
Unit m/s
Accuracy ±0.2 m/s or ±2% of reading, whichever is greater
Resolution 0.1 m/s
Virtual temperature
Principle Ultrasonic
Measuring range -50 .. 70 °C
Unit °C
Accuracy ± 2.0K (without heater and without sun exposure)
Resolution 0.1 °K
Ordering Information
8371.UM VENTUS-Ultrasonic Wind Sensor, metal housing and 240W-heater
8160.UISO UMB Interface converter ISOCON
8366.USV2 Power supply 24V/10A
8371.UK015 Connection cable Ventus/V200A, 15m incl. connector
8371.UK050 Connection cable Ventus/V200A, 50m incl. connector
8371.UST1 Connector Ventus/V200A
8379.USP-V Surge protection
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