Anemometer Thies First Class Advanced X

  • Intelligent optically-scanned cup anemometer

Thies First Class Advanced X is classified acc. to IEC 61400-12-1 Ed. 2.0 (2017-03). It has been designed to measure:

  • Horizontal wind speed
  • Absolute and relative air pressure
  • Inclination X, Y and Z
  • Acceleration, frequency and amplitude of vibration measurement in X, Y and Z

The anemometer is designed for measuring of wind resources for assessment reports and power curves. The sensor is characterized by minimal deviation from cosine line, optimized dynamic behavior even at highly intense turbulences, minimal overspeeding, low starting value and optimized oblique inflow behavior. It requires only low maintenance thanks to its low-inertia and ball-bearing cup star. For winter operation the electronically regulated heating guarantees smooth running of the ball bearings and prevents icing of shaft and slot.

Specification

Characteristics

 

Physical functionality

Optically-scanned cup anemometer

Delivered signal

Frequency output (pulse) and RS485 (Modbus)

Accuracy

 

Accuracy wind speed

±1% of measured value or < ±0.2 m/s @ 0.3 ... 50/s

Accuracy housing temperature

±1° (Measurement range: -40 ... +80 °C)

Accuracy air pressure

±1 hPa @ 20°C (Measurement range: 300 ... 1100 hPa)

Accuracy inclination (X, Y, Z)

±1° (Measurement range: -89.9° ... +89.9°)

Accuracy vibration (X, Y, Z)

±0.4 Hz (Measurement range: 0 ... 50 Hz)

Accuracy acceleration

±30 mg (Measurement range: ±8 g)

Linearity

Correlation factor r between frequency f and wind speed y

r > 0.999 99 (4 ... 20 m/s)

Starting velocity

< 0.3 m/s

Resolution

0.05 m wind run

Distance constant

< 3 m (acc. to ASTM D 5096 - 96) 3 m acc. to ISO 17713-1

Turbulent flow into cups

Deviation Δv turbulent compared with stationary horizontal flow

-0.5 % < Δv < +2 %

Frequency < 2 Hz

Wind load

Approx. 100 N @ 75 m/s

Operating range

 

Measuring range

0.3 ... 75 m/s

Survival speed

80 m/s (mind. 30 min)

Permissible ambient conditions

-40 ... +80 °C, 0 ... 100% RH including condensation

   

Electrical data

 

Output signal (frequency)

Form rectangle, 1090 Hz @ 50 m/s, supply voltage max. 15 V

Output signal (RS485)

Modbus protocol, bus-compatible

Half duplex, data format: 8N1

Baud rate: 2400, 4800, 9600, 19200, 38400, 57600

Electrical supply for optoelec. scanning

Voltage: 3.7 ... 42 VDC (galvanic isolation from housing)

typically 40 mA, max. 100 mA

Electrical supply for heating
(only S11200H)

Voltage: 24 V AC/DC (galvanic isolation from housing)

Idling voltage: max. 30 VAC, max. 42 VDC

Power consumption: 25 W

General

 

Connection

8-pole plug-connection for shielded cable in the shaft

Mounting

on mast tube R1”

Dimensions

290 x 240 mm

Fixing boring

35 x 25 mm

Weight

approx. 0.5 kg

Material Housing

Cup star

Anodised aluminiun

Carbon-fibre-reinforced plastic

Type of bearings

Metallic ball bearings

Protection

IP 55 (DIN 40050)

Patent

EP 1 398 637, DE 103 27 632, EP 1 489 427

EMC

EN 61000-6-2, EN 61000-6-3, EN 61010-1, EN 50581

Manufacturer

Thies

Accessory

Module set M83575 (incl. isolated repeater)

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