Texas Instruments SERIES 525 RAINFALL SENSORS MODEL TD-4WIND DIRECTION SENSOR, Description

MODEL TD-4 WIND DIRECTION SENSOR

DESCRIPTION

The Texas Electronics, Inc. TD-4 Wind Direction Sensor is a mechanical style wind meter that measures the horizontal wind azimuth. This unit combines small physical size with superior bearings to meet the EPA's Prevention of Significant Deterioration (PSD) starting threshold requirements.

The TD-4 wind direction sensor is a freestanding device for measuring the direction of wind. The sensor consists of a vane and counterweight assembly, which is mechanically coupled to a potentiometer (variable resistor). As the vane rotates in the wind, the potentiometer changes resistance proportionally to the direction of wind.

SPECIFICATIONS

Operating Range: Signal Presentation:

5000 ohm output:

10000 ohm output:

Analog 4-20 mA output:

Performance:

Accuracy:

Starting Threshold:

Resolution:

Potentiometer Linearity:

Environmental:

Operational Envelope:

Temperature:

Relative Humidity:

Physical:

Vane Overall Length:

Overall Height:

Turning Radius:

Weight:

Bearings:

Mounting Base:

Cable:

Warranty:

0-360° mechanical

5000 ohm potentiometer,

10000 ohm potentiometer, or Analog 4-20 mA

0-355° electrical range

3 VDC excitation minimum

0-357° electrical range

3 VDC excitation minimum

0-355° electrical range

10-30 VDC

+/- 3.0°

0.6mph (0.27 m/s)

1° +/- 1.0%

0-135 mph (0 to 60 m/s)

-40 to 160° F (-40 to 70° C) 0-100%

8.5" (21.6 cm) 6.75" (17.2 cm) 13" (33 cm)

0.5lbs (0.23 kg) less cable APEC 3 or better

Screw attachment, 10-32 machine screw

60' (18.3 m) 3 conductor 22 gauge

3 year