4.3875.20.340 Ultrasonic Anemometer Compact by Thies
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The Thies 4.3875.20.340 Ultrasonic Anemometer 2D Compact is specially designed for use in rough environmental conditions and offshore applications. Built with a seawater-resistant aluminum Mg Si1 hard-anodized housing, this acoustic measurement device detects the horizontal components of wind speed and wind direction with high precision. It also measures virtual temperature and includes an integrated barosensor for barometric air pressure at installation height. A regulated heating system integrated into the sensors and housings ensures trouble-free year-round operation under extreme climatic conditions. The unit features digital outputs including RS 485/422 full and half duplex, as well as analog outputs. Designed for 1.5 inch mast attachment with an IP 68 protection type, it operates within a temperature range of -40 to +70 degrees Celsius.
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Characteristics
| Manufacturer | Thies |
|---|---|
| Part number | 4.3875.20.340 |
| Inner Code | 4289135 |
Technical specification
| Product type | Ultrasonic Anemometer 2D Compact Offshore |
|---|---|
| Wind Speed Measuring Range | 0.1 to 75 m/s |
| Wind Speed Accuracy | 0.2 m/s RMS <5m/s; +/- 2% > @5 m/s |
| Wind Direction Accuracy | +/- 2.0°@ Wg>1m/s |
| Virtual Temperature Measuring Range | -50 to +70°C |
| Virtual Temperature Accuracy | +/- 2K |
| Baromodule Range | 300 to 1100 hPa |
| Baromodule Resolution | 0.1 hPa |
| Baromodule Accuracy | +/- 0.25 hPa @ 25°C |
| Digital Edition | RS 485/422 FULL /HALF DUPLEX |
| Baud Rate | 1200 to 921600 bps |
| Analog Output | 0/4 to 20 mA, 0/2 to 10 V, 16 BIT, BURDEN 300 OHMS |
| Internal Measurement Rate | MAX 250 HZ |
| Operating Voltage | 8 to 60 V DC/ 12 to 42 V AC; 1.2 W |
| Heating Voltage | 24V AC/DC +/- 15%, 240 VA |
| Temperature Range | -40 to +70°C |
| Housing | Aluminum Mg Si1 hard anodized, seawater resistant |
| Mast Attachment | 1.5 inch |
| Protection Type | IP 68 |
| Connection | 8 pin plug |