PDS Automatic Weather
Introduction to the PDS
Since Pacific Data Systems commenced the manufacture of automatic
weather stations in 1986, we have delivered stations to hundreds of
customers both across Australia and in 22 overseas countries.
A PDS Automatic Weather Station is supplied with our own Remterm
Weather® software which provides the user with the ability to
configure the station's operational parameters, (sensor types,
measuring ranges, logging intervals, etc) and to retrieve the stored
data in either graphical or report format. Real-time graphical
display of data is also available, as is remote communication with
the station via the PSTN telephone network, the GSM or CDMA cellular
telephone networks, satellite data networks such as Inmarsat D® or
Iridium® spread-spectrum radio-modems or VHF radio data links.
PDS automatic weather stations offer an "open architecture" so that
virtually any type of sensor (be it meteorological, air quality or
water quality) may be connected - regardless of whether the sensor's
output signal is voltage, current, resistance, frequency, contact
closure or pulse. Other weather stations use a "closed architecture"
whereby only sensors made by that particular manufacturer may be
used. The constraints of such a system are obvious.
We offer a three-year warranty on weather stations and a one-year
warranty on sensors telemetry modules and accessory items. These
warranties cover both parts and labour. In addition, we provide
unlimited free telephone support to our customers.
Please Contact us
for more information and pricing on our Automatic Weather Stations
including sensors and accessories.
The heart of the Weather
Station - the data logger
The standard data logger used in Pacific Data Systems Automatic
Weather Station is the dataTaker DT80.
This Microprocessor based, battery-powered data logger has 5
differential or 15 single ended analogue input channels, 8 digital
channels and 4 high speed counter channels. The 8 digital I/O and 1
latching relay, allow the switching on/off of control gear such
pumps etc. These digitals can also switch devices such as sirens and
buzzers as notifications of sensors reading out of specified ranges.
Most types of sensors can be connected to this extremely versatile
logger, enabling the logger to be used for other functions, in
addition to meteorological monitoring.
The 2 line display on the data logger allows the real-time viewing
of data and alarm conditions while on site without the need for a PC
There are 3 main ways of communication with an Automatic Weather
Station using the DT80 data logger apart from telemetry. These are:
Ethernet, USB and RS232 / RS485.
The data logger has an internal memory capacity of 64MB and is
upgradeable to 1GB. This memory is non-volatile Compact Flash memory
and will not be deleted if power is lost. If logging the 8 sensors
every 5 minutes, the 64 Mb of memory can record for over 1700 days
without filling up.
When initially setting up the weather station program, various
options can be selected so as not only the raw data be stored or
returned but also calculations using the sensors selected.
Calculations such as average, maximum reading, minimum reading,
standard deviation and many more can be added as one way of
minimizing the end-user overhead when adding these calculations into
viewing programs such as Microsoft Excel®.
Additionally, the DT80 is also auto-calibrating and auto-ranging
thus aiding the selection of the optimum workable parameters.
Find out more on the DT80 data logger. or go to
from an Automatic Weather Station in the field with either a PC or
USB Flash Drives
Connecting the Automatic Weather Station to a computer is made easy
by the Windows-based software supplied with each Weather Station
which will run on IBM compatible PC's. You Simply "Point - and -
click" on the required menu parameters in order to make you
selection. Later, when you want to retrieve the stored data, you
simply reconnect your computer and unload the stored data to a
spreadsheet or database file.
USB flash drives are available to provide increased data storage
capacity of up to 4Gb readings. The USB flash drives are
transportable for downloading data via an off-site computer. The
flash drive may also be used to store the stations program, if it
becomes necessary to change a program in the field. This may be done
without the needs for a computer on-site, simply by inserting a
flash drive into the logger's USB socket.