METEO DATA LOGGER
The HD32MT.1 is a
data logger capable of capturing and logging the values measured by a
series of sensors connected to its inputs.
The data logger is completely programmable by the user and is
therefore very versatile.
The supplied HD32MTLogger application
software, supplied with the instrument, allows simple and intuitive
programming by using graphic interfaces, without the need of learning
any programming language, thus minimizing the time needed to make the
The values recorded by the instrument can be
transferred to a PC by using the HD32MTLogger software. The data logger
can be configured to memorize the instant value, the minimum value, the
maximum value, the average value and the standard deviation of the
For measurements that require the counting of pulses, the
total counted pulses can be stored. Different acquisition/recording
intervals can be programmed per each input. Each recording includes
acquisition date and time
The data logger has a "flash" internal memory arranged in circular
mode: when the memory is full the new data overwrite the older ones.
The number of storable measurements depends on the number of sensors
employed, on the type of measurement to be stored and on the fact that
the sensors are required all at the same time or at different instants.
For example, with 8 sensors captured at the same time, 100,000 records
can be stored, each one composed of 8 instantaneous measurements.
Data can also be directly recorded to a removable SD-type memory card
with a capacity of 4 GB. The use of a memory card allows extending the
memory capacity of the instrument, allowing not to loose the data when
the memory is full.
Three data logger versions are available, according to the
possibility of communication with the PC:
the communication with the PC for data transfer or
programming is done via cable connection.
Version with Radio Modem option: in addition to the direct cable
connection to your PC,you can transfer the data and program by VHF radio
using optional external radio modems.
Version with TCP/IP option: data transfer and programming can be
done via TCP/IP via optional external Ethernet Serial Server.
All versions can be equipped with an optional GSM module to be
connected externally to the instrument, through which you can send alarm
SMS to mobile phones and send the recorded data by e-mail
or to an FTP address.
The instrument can be connected to the most common sensors used in
industrial and environmental fields, with both analog and digital
The typical sensors that can be connected to the instrument are:
sensors with analog voltage output, both unipolar and bipolar;
sensors with analog current output (0...20mA, 4...20mA);
type K, J, T, N, R, S, B, E thermocouple temperature sensors; with
automatic cold junction
compensation by using a temperature sensor internal to the data
Pt100/Pt1000 and NTC temperature sensors; anemometer)
Sensors with digital output (TTL levels), or analog (periodical), for
counting measures, frequency and period (e.g. sensors for soil water
Resistors and potentiometers to measure resistance and voltage
relationship (e.g. vane anemometer)
magnetic sensors with reed contact (e.g. open door)
solar radiation sensors (pyranometers, albedometers, net-radiometers,
luxmeter, pyrgeometers, duration of irradiation)
sensors with open/close contact output (e.g. rain gauges, cup
sensors with RS485 output and MODBUS-RTU protocol;
HD2003 and HD52.3D series anemometers.
Dew Point, Heat Index, Wind Chill, Saturation Vapour Pressure
Custom mathematical formulas applied to the measured quantities, with
arithmetic operators, logical, mathematical and trigonometric functions,
control functions (IF ...THEN)
Reference Evapotranspiration ETo with FAO Penman-Monteith
There are potential-free contact alarm outputs and digital alarm
outputs. The outputs are activated if the values measured by sensors
connected to data loggers exceed the programmed thresholds.
The data logger is able to store and report error conditions caused by
malfunction of the connected sensors, hardware or data logger during
acquisition and storage. The alarm outputs can also be programmed to
detect such errors.
The instrument is particularly suitable for use in weather stations,
for the detection and remote transmission of climatic variables.
AP manufactures a wide range of sensors for measuring environmental
variables that can be connected to the data logger, including sensors
for measuring temperature, humidity, barometric pressure, wind speed,
solar radiation, amount of rainfall, etc.
The data logger can be supplied with a program of measures and stores
pre-installed according to specifications of the customer, in order to
be operational immediately after installation of the system.
is installed directly to meet the required specifications when ordering.
Some features of the data logger are password protected (Clock
Setup, User Code Setup, Send Program, GSM Setup). If needed the password
is entered by the user at the time of connection.
Power supply from 12 to 30 Vdc. The system can also be powered by a
solar panel and backup battery of adequate capacity, allowing for
installation in remote sites without electrical power.
lithium battery keeps the date and time of the instrument in the absence
of external power. The data logger can provide power to all sensors
connected at its terminals.
It can signal and store when the supply
voltage is below a programmable threshold and go into wait (standby)
mode to low power consumption. In this mode, the datalogger interrupts
the power supply to all sensors and suspends acquisitions/loggings,
until the supply voltage returns at least to the minimum threshold.