R.M Young 32400 SERIAL INTERFACE

The Model 32400 SERIAL INTERFACE measures wind speed and direction signals from YOUNG sensors and signals from four general purpose voltage inputs. The voltage inputs may be used with YOUNG
temperature, humidity, barometric pressure, precipitation, or other sensors. One of the voltage inputs may also be used with a tipping bucket precipitation gauge. These input signals are converted into scaled values and placed in a serial string, which is output at up to 15 hertz.

The serial output is available in several serial data formats in either full duplex RS-232 or half-duplex RS-485 signals. Both continuous and polled serial outputs are available. When polled, up to 16 units can be networked together. For marine applications the 32400 produces standard NMEA serial output sentences. Calibrated voltage outputs for wind speed and direction are also provided when the 32400 is connected to a YOUNG wind sensor.

SERIAL INTERFACE SPECIFICATION SUMMARY

Wind Speed Input:
Sensor Type: AC Frequency Generator
Sensitivity: 50mV p-p at 10Hz
Range: 0-2000 Hz

Wind Direction Input:
Sensor Type: Potentiometer
Range: 0-5000mV = 0 to 355 degrees
Excitation: 5000mV (limited to 5 mA)

Voltage Inputs (Auxiliary Sensor Inputs):
Resolution: 12-bit
VIN1 and VIN2 0-1000mV
VIN3 and VIN4 0-5000mV

Voltage Outputs:
OUT1 0-5000mV 0-100 m/s wind speed
OUT2 0-5000mV 0-360° wind direction

Serial Output:
Full duplex RS-232,
Half duplex RS-485 (2 mS turnaround),
Baud: 1200, 4800, 9600, 19.2K, & 38.4K, 8 data, 1 stop, no parity

Operating Temp: -50°C to 50°C

Power: 11 to 30 VDC, 40 mA

Mounting:
Stainless steel U-bolt mounting clamp fits vertical pipe 25-50 mm (Ø1-2 in) (1 inch IPS (Ø1.34 inch actual)
Size:
7.50” (19.0cm) H
3.00” (7.6cm) W
3.00” (7.6cm) D