GHM Delta OHM HD52.3D Series, Руководство по эксплуатации

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HD52.3D…
- 3 -
V2.2
1 INTRODUCTION
The instruments of the series HD52.3D… are 2-axis ultrasonic static anemometers. The availa-
ble measurement options combine in a single instrument the main quantities of meteorological
interest, making the instrument like a compact and light meteorological station.
Measured quantities:
 Wind speed and direction, U-V Cartesian components of wind speed
 Wind Gust
 Relative Humidity and temperature (optional)
 Global solar radiation (optional)
 Barometric pressure (optional)
 Rainfall (optional)
The “Rainfall” and “Global solar radiation” options are alternatives (they can not be both pre-
sent in the same instrument).
The average of wind speed and direction over a period configurable up to 10 minutes is calcu-
lated.
All models are equipped with a magnetic compass.
Wind speed and direction are determined by measuring the transit time of ultrasonic pulses
between two pairs of ultrasonic transducers.
RS232, RS485, RS422 and SDI-12 serial interfaces are available with NMEA, MODBUS-RTU
and SDI-12 communication protocols.
All versions have two analog outputs, for wind speed and direction, which are factory-
configurable within 4÷20
mA (standard), 0÷1 V, 0÷5 V or 0÷10 V (to be specified when or-
dering).
The heater option prevents the accumulation of snow and ice formation, allowing precise
measurements in all environmental conditions.
Mounting on
 40 mm mast. The electric connection is performed through a M23 19-pole con-
nector situated on the bottom of the instrument.
The low power consumption of the instrument allows installation in remote sites, with power
supplied by photovoltaic panel and backup battery.
The absence of moving parts minimizes the instrument maintenance.