2024-04-25 10:07:06
Thies First Class Advanced II-Heated | MeteoXperts Solutions
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Thies First Class Advanced II-Heated

Make: Thies Clima                                        Model: 4.3352.00.000 – heated
✅ The wind transmitter is designed for the acquisition of the horizontal component of the wind velocity in the field of meteorology and environmental measuring technology.
✅ Measurand : Wind Speed.
✅ Sensor Type : Cup Anemometer
✅ Signal Output : Frequency (1082Hz @ 50m/s)
✅ Supplied With : Terminal plug, Instruction for Use, Factory test/ Calibration Certificates.

Thies First Class Advanced II-Heated: 4.3352.00.000

The wind transmitter is intended for the measurement of wind power system capacity characteristics, location assessment, and the acquisition of the horizontal component of wind speed in the fields of meteorology and environmental measuring technology. Dynamic behavior with high turbulence intensity, less over speeding, and low beginning values are specified and tuned.

The output contains a digital signal that represents the measurement value. It can be sent to process control systems, data loggers, display instruments, recording instruments, and data loggers. The instrument may be supplied with optional electrically controlled heating for winter operation, which ensures that the ball bearings spin smoothly and keeps the shaft and slot from freezing up.

The wind spins a low-inertia 3-cup star made of carbon fiber-reinforced plastic. The rotation is optically scanned and converted into a square wave signal. The frequency of this signal is proportional to the number of rotations. Depending on the supply voltage, the output signal ranges between the maximal output voltage and ground or a potential (life zero), lifted by approximately 1.2V. The supply of the electronics can be done with a DC voltage of 3.3 V up to 48 V at a very low current consumption. An AC or DC voltage of 24 volts is intended for the separate supply of the optional heating. In all probability, the heating guarantees a trouble-free function of the wind transmitter First Class even under extreme meteorological icing conditions.

The outer parts of the instrument are made of corrosion-resistant anodized aluminum. Highly effective labyrinth gaskets and O-rings protect the sensitive parts inside the instrument against humidity and dust. The instrument is mounted on a mast tube, and the electrical plug connector is located in the transmitter shaft.

Application and features of Thies First Class Advanced II-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)
✅ Supply 3.3 … 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


4.3352.00.000 – heated 

Weight (Mass)

Approx. 0.5kg


290 × 240 mm


Form : rectangle, edge steepness < 1μsec
Frequency : 1082Hz @ 50m/s
Amplitude : is supply voltage, max. 15V
Push-Pull Output : output resistance : typical 100Ω ≥ 10V, 130Ω @ 5V, 230Ω @ 3.3V ,Constant power limiting on typical 25mA
Load : R ≥ 1kΩ ,C ≤ 200nF (corresp. to length typical cable < 1km)

Power Supply

Electrical supply for optoelectronic scanning :
Voltage: 3.3 … 48V DC (galvanic isolation from housing)
Current: 130μA typ. 150μA max. @ 3.3 … 15.0V (w/o external load), 180μA typ. 200μA max. @ 15 … 48V (w/o external load)
Electrical supply for heating :
Voltage: 24V AC/DC, 54 … 65Hz (galvanic isolation from housing)
Idling voltage: max. 30V AC, max. 48V DC
Capacity: 25W

Operating Environment

Permissible Ambient conditions : -50 … +80 °C, all occurring situations of relative humidity (incl. dew moistening)

Protection Level

IP 55 (DIN 40050)

Standerd / Regulation

IEC 61400-12-1

Mast Diameter

Mounting on mast : R 1“, for ex. DIN 2441 , 1½ “ with separate adaptor (option)

Wind Speed

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


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