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Ventus-UMB for wind energy applications



Ventus-UMB for wind energy applications

Extremely precise and maintenancefree measurement of wind speed, wind direction and air pressure as well as calculation of acoustic virtual temperature. The ultrasonic wind sensor is designed without mechanical parts as known with traditional “cups and vane”. The digital or analog output delivers instantaneous, average, min or max value with flexible measuring rate. The VENTUS is heated in case of critical ambient conditions. Made for cold climates! Recommended for: Wind turbines, marine/ships, meteorology and building automation. The following outputs/protocols are available: NMEA, UMB-ASCII, UMB-Binary, MODBUS (ASCII, RTU), SDI-12, 4…20 mA, 0…10V, 0…20 mA, 2…10V, frequency (analog)


Dimensions Ø approx. 150 mm, height approx. 170 mm
Weight Approx. 1.62 kg
Permissible ambient temperature -40…60°C
with heating 24VDC / 240VA (140VA + 100VA)
Bus operation Up to 32 devices
Operating voltage electronics 12-24VDC / 1.2VA, without heating
Electrical connection 8 pole plug
Housing material Aluminium, seawater-proof
Protection type IP68
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 0…20 mA, 4…20 mA, 0…10V, 2…10V,
2…2,000 frequency (instantaneous, avg, min, max)
Load Max. 500 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
HALT Highly Accelerated Life Test
Maximum operating height 3500m