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Thies First Class Advanced X-Heated

Make: Thies Clima                              Model: 4.3352.00.400 – heated
✅ The wind transmitter is intended for use in the wind energy, meteorology and environmental measuring technology.
✅ Measurand : Horizontal component of the wind velocity,Absolute and relative air pressure,Frequency and acceleration in the X-, Y- and Z-axis,Housing interior temperature.
✅ Senso Type : Cup Anemometer
✅ Signal Output : RS485 / ASCII / MODBUS and Frequency output.
✅ Supplied With : Connection plug, Instructions for use, Factory test/ Calibration Certificates.

Thies First Class Advanced X-Heated-4.3352.00.400

The wind transmitter is designed for use in wind energy, meteorology, and environmental monitoring. The anemometer was designed to gather the following measured variables: the horizontal component of wind velocity; absolute and relative air pressure; the inclination angle between the Z-axis and the vertical; the inclination angle between the X-axis and the horizontal; the frequency and acceleration on the X-, Y-, and Z-axes; and the housing interior temperature.

A defined and optimized dynamic behavior even in extremely strong turbulence, little overspeeding, a low beginning value, and an optimized oblique inflow behavior are further features.
This sensor is distinguished by an integrated adjustment of the influence of air density on the rotation velocity of the cup star, particularly in its features. The gadget has a digital interface in the form of an RS485 interface in half-duplex mode. The interface, in conjunction with ID-based communication, permits the functioning of the wind transmitter in a bus. Two data protocols are available:

  • ASCII (THIES format).
  • Binary (MODBUS-RTU).

For winter operation, the device can be equipped with an electronically controlled heater, which provides a barely measurable friction moment of the ball bearings in low temperatures and prevents ice buildup on the shaft and gap.

Application and features of Thies First Class Advanced X-Heated:



✅ Power curve measurement at wind power plants
✅ Wind potential studies
✅ Site appraisals
✅ Research purposes
✅ Meteorological Applications
✅ Class A compliance in accordance to IEC 61400-12-1 and 61400-12-1 Ed.2
✅ Worldwide the first classified anemometer according IEC 61400-12-1 Ed.2
✅ Calibrated according to MEASNET and IEC 61400-12-1 Ed.2 (ilac-MRA)
✅ Frequency output (1082 Hz at 50 m/s)
✅ Outputs: RS485 / ASCII / MODBUS
✅ Option for connecting a bus-compatible wind vanes and anemometers in parallel (daisy chain)
✅ Supply 3.7 … 48 V DC
✅ With heating (24V AC/DC, 25W)
✅ Measurement Range: 0.3…75 m/s
✅ Accuracy: <1% of value or < ±0.2 m/s (0.3…50m/s)
✅ Survival Wind Speed 80 m/s (≥ 30 min)
✅ Linearity: r>0.99999 (4…20 m/s)
✅ IP 55
✅ 2 years warranty

Thies Clima


4.3352.00.400 – heated

Weight (Mass)

approx. 0.5kg


290 × 240 mm


Type : open-drain or push-pull
Form : rectangle
Frequency : 1082Hz @ 50m/s without using calibration data
Amplitude : corresponds to supply voltage, max. 15V
Load : Ra > 1 kΩ (Push-pull output with 200Ω in series), Approx. <200nF (corresponds to a cable length ~ 1km)

Power Supply

Electric supply for electronic :
Voltage : 3.7 … 42V DC (galvanically separated from the housing)
Current : 40mA typ. 100mA max. (with heating pressure sensor on), approx. 3.3mA in power saving mode SM1, HT0
Electric supply for Housing heater :
Voltage : 24V AC/DC, 45 … 65Hz
Open circuit voltage : max. 30V AC, max. 42V DC
Wattage : 25W
Proportional control, control temperature: 5°C, Heater can be enabled disabled via interface, galvanically separated to the housing and the measured value logging

Operating Environment

Admissible environmental conditions : -40 … +80°C/ 0 … 100% relative humidity, including condensation

Protection Level

IP 55 (DIN 40050)

Standerd / Regulation

IEC 61400-12-1

Mast Diameter

Mounting on mast :
Outer diameter : ≤ 34mm
Inner diameter : ≥ 22mm
Note: mounting on mast is possible with separate adapter (option).

Wind Speed

Measurement range: 0.3 … 75m/s
Resolution: 0.05m wind travel
Measurement uncertainty ±1% from the measured value or < ±0,2m/s @ 0,3 … 50m/s


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