user manual

MODEL TV-4 WIND SPEED SENSOR
DESCRIPTION
The Texas Electronics, Inc. TV-4 Wind Speed Sensor is a mechanical style anemometer that measures the
horizontal velocity of wind. This unit combines small physical size with superior bearings to meet the EPA's
Prevention of Significant Deterioration (PSD) starting threshold requirements.
The TV-4 wind speed sensor is a freestanding device for measuring air velocity. The sensor consists of a
lightweight 3-cup anemometer, which electromechanically converts wind speed into a measurable electronic
signal.
The output signal can be presented in 3 optional forms: a pulsed DC signal, an AC frequency, or a conditioned
analog signal. Each output has a specific application. The pulsed DC signal is used where high-accuracy is
needed and continuous power is not a problem. The AC frequency output is used in situations where power
consumption is critical. And finally, the conditioned analog signal is used to easily and quickly communicate
with virtually all digital control systems such as PLC's or SCADA systems.
SPECIFICATIONS
Operating Range: 0-100 mph
Signal Presentation: Pulsed DC output - light chopper
AC Frequency, or Analog, 4-20 mA
(Please specify)
Pulsed DC output: 20-slot disc
1 MPH = 520 pulses/min.
100 MPH = 52000 pulses/min.
Input Power: +5.0 VDC @ 5mA (typical)
(Other voltages available upon request)
AC Frequency output: 26 mV/MPH (typical)
0.133 Hz/MPH
Input Power: None (self-generating)
Analog 4-20 mA out: 4 mA = 0 MPH
20 mA = 100 MPH
Input Power: 10-36 VDC
Performance:
Accuracy: +/- 2.0 mph (0.89 m/s)
Distance Constant: > 21.7' (6.6 m)
Starting Threshold: 0.6 mph (0.27 m/s)
Environmental:
Operational Envelope: 0-135 mph (0 to 60 m/s)
Temperature: -40 to 160° F (-40 to 70° C)
Relative Humidity: 0-100%