QUICKREAD 2-16 CHANNELS0 pages

QuickREAD 2-16 channels

The new QuickREAD data acquisition unit is one
of the latest generation developed by Agisco to
read and acquire different types of electrical
signals such as voltage, current, temperature,
strain-gauges, resistance, load cells, and many
more.
This logger can work in any environmental
condition.
OPERATING METHODS
The unit has a modular configuration consisting
of 2 or 16 analogical or 8 digital channel (up to
32 units for a cascade connection).
These devices are housed in casings of different
types, depending on their use. They can read
signals in current or voltage (4-20mA) or be
equipped with digital counters.
Each module is equipped with signal converters
- one for each channel - to read and transform
analogue impulses into digital so as to be
transmitted through the Rs-422 serial line or any
other available.
An RS 422 communication bus connects one
module to the next so as to cover distances of
1000m or more very easily. This allows installation
of many gauges spread over a large area
optimising the use of cables and avoiding
disturbances due to long distances.
Each board is connected to the central reading
device and are fully managed by it.
When low power consumption is needed, the
central unit consists of a Linux 2.6 industrial
embedded PC, 1.5Watt consumption and 4Gb
solid state memory.
When requested the central unit makes
enquiries to the peripheral boards and reads all
the connected sensors in real time.

In practice this procedure can be carried out by
a Windows PC (XP or higher) cabled to the
peripheral boards or to a remote computer with
a GSM modem.
There is also the possibility of replacing the bus
RS 422/485 with radio link (with the use of freeband Wi-Fi radio units such as W-pan) thus
avoiding the use of connecting cables.
Should the Wi-Fi connection be preferred, the
max communication distance is some hundreds
of meters in view. For longer distances (many
kilometres) additional trans/receivers modules
can be used as a radio link.
MATERIALS
Casings are made in different materials to best
suit the environmental conditions of the
instrumentation emplacement.
Casing materials range from polyester with high
fireproof characteristics for ambient with
elevated fire and/or explosion risks; fibreglass,
metal and even polypropylene for total
waterproofing and resistance against harsh
environment.

READ - Data Acquisition Device