Product information Wireless data loggers
Terminal header in the model HD35EDWH
The model HD35EDWH is equipped with four terminal header inputs. Each input can be configured as input for: Pt100/Pt1000, thermocouple,
0/4…20 mA (the shunt resistance is internal), 0…50 mV, 0…1 V, 0…10 V or potentiometer. Only input 4 can also be configured as pulse counter
(counting of switchings of a voltage-free contact).
Input 1
Input 3
Input 4
Input 2
3-wire
Pt100
0...10 V
transmitter
ON/OFF contact
4-20 mA
transmitter
Example of connection of HD35EDWH model inputs
The model HD35EDWH is also available with 7...28 Vdc external power supply (HD35EDWH
E
, without battery).
Version for weather stations (HD35EDM...TC)
An
IP67
waterproof version is available for meteorological applications, in a housing with front dimensions 120x122 mm. The model has:
-
one input for relative humidity and temperature with NTC sensor combined probe or, alternatively, for temperature only probe
with NTC sensor;
-
one input for pyranometer;
-
one input for rain gauge;
-
one input for cup anemometer;
-
one input for wind direction vane;
It is also possible to connect only some of the probes.
Internal sensor for measuring the atmospheric pressure.
Calculated quantities (depending on the sensors available):
-
dew Point;
-
daily solar radiation in Wh/m
2
(Wh = watt-hour);
-
ainfall rate in mm/h;
-
rainfall statistics;
-
Felt air temperature as a function of the wind speed:
Wind Chill
index;
-
wind gust
: maximum wind speed obtained from the 3 seconds averages of the measurements acquired once per second;
All the values acquired by the data logger can be simultaneously displayed in real time on the monitor of the PC.
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