風向風速計 / ICEFREE3A
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This product is no longer available.
This product is no longer available.
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概要
The ICEFREE3A anemometer is an electrically heated wind-speed sensor, designed for ice-prone sites. The sensor provides an electrical output signal with frequency directly proportional to wind speed.
The ICEFREE3A is manufactured by Renewable NRG Systems and has an 8 m (26 ft) cable.
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詳細
The ICEFREE3A monitors wind speed using a three-cup anemometer. Rotation of the cup wheel produces a sine-wave that is directly proportional to wind speed. The frequency of the sine wave is measured by the data logger pulse count channel, then converted to engineering units (mph, m s-1, knots).
Wiring Information
Gray Cable
- Clear - Signal
- Black - Reference
- Shield - Shield
Red Cable
- Black - Heater
- White - Heater
仕様
| Sensor | 3-cup anemometer |
| Measurement Description | Wind speed |
| Range | 0 to 90 m s-1 (0 to 200 mph) |
| Sensor to Sensor Variation | 99.7% of sensors fall within 4.3% of stated transfer function (based on over 800 samples) |
| Distance Constant | 7.6 m (25 ft) for 63% recovery |
| Sensor Output Signal Range | 0 to 155 Hz |
| Operating Temperature Range | -40° to +60°C |
| Operating Humidity Range | 0 to 100% RH |
| Supply Voltage | 24 V ac/dc |
| Supply Current Inrush | 8 A (maximum) |
| Supply Current Steady State | 1 A at 20°C, 4 A under maximum thermal load (head frozen in clear ice then powered on) |
| Body Diameter | 7.0 cm (2.75 in.) |
| Swept Diameter of Rotor | 12.7 cm (5 in.) |
| Cable Length | 8 m (26 ft) |
| Overall Assembly Height | 22.4 cm (8.82 in.) |
| Weight | 1.45 kg (3.2 lb) |
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