Delta OHM HD32MT.3, Руководство по эксплуатации

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HD32MT.3
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V1.2
1 INTRODUCTION
HD32MT.3 data logger is able to acquire and store measured data from a series of environ-
mental sensors connected to its inputs.
The data logger has an SDI-12 port, to which you can connect up to four sensors, and an RS485
port with Modbus-RTU protocol for connecting Delta OHM sensors, such as:

HD52.3D… series of two-axis ultrasonic static anemometers for the measurement of
wind speed and direction, temperature, relative humidity, dew point temperature, baro-
metric pressure and solar radiation;

HD2003… series of three-axis ultrasonic static anemometers for the measurement of
wind speed and direction, temperature, relative humidity and barometric pressure;

HD9008.T7S temperature transmitter;

HD9008.T17S temperature, relative humidity, dew point temperature transmitter;

LP PYRA…S series of pyranometers;

LP SD18.1 sunshine duration sensor for the measurement of the state and duration of
sunshine;

TP32MTT.03 temperature probe for the measurement of ground temperature profile;

HD9408.3B precision barometer;

HD3910… probe for the measurement of the soil volumetric water content (VWC);

HD48S07TFP temperature transmitter with contact probe for photovoltaic panels;

HD2016 weighing rain gauge.
The data logger is equipped with three configurable analog inputs for connection of transmit-
ters with 0…1 V, 0…10 V, 0…20 mA or 4…20 mA analog outputs, such as:

HD3901… leaf wetting sensor;

HD4V8TBARO barometric transmitter.
It is also equipped with:

One input for the connection of a rain gauge with potential-free contact output;

One input for the connection of a cup anemometer with contact output or sinusoidal ana-
log output;

One potentiometric input for the connection of a wind vane for the measurement of
wind direction or for the connection of other sensors with potentiometric output;

A potential-free contact isolated alarm output.
An optional barometric pressure and temperature sensor (to be requested upon order) can
be directly mounted on the electronic card, inside the case.
The sensors supplied are factory-calibrated and interchangeable.
C
ONFIGURATION
The data logger is user-programmable and can be set for operations with a wide range of sen-
sors. It is possible to set instant, minimum, maximum or average measurement values. For
measurements requesting pulse counting, the total amount of counted pulses can be stored. Each
storage includes date and time of acquisition.
If the data logger is connected to a rain gauge provided with calibration report, the measurement
corrections can be defined according to the rain intensity, so as to obtain more precise measure-
ments.