TPi July 2015

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54 Tube Products International July 2015
Mater ials handl ing & logist ics
RFID pressure transmitters
for hydraulic applications
Stauff presented its PT-RF series of
pressure transmitters at Hannover
Messe 2015.
The innovation in the field of universal
pressure measurements for fluid
technology applications will provide
benefits for system operators,
maintenance personnel and repair
technicians, as well as for original
equipment manufacturers.
The use of these transmitters in
a hydraulic system allows the
wireless collection of pressure
data without having to connect
measuring devices to the
user’s equipment, eliminating
the possibility of introducing
contamination into the system
and speeding up the process.
The operating principle of the
pressure transmitters is based
on RFID (radio frequency
identification) technology.
The energy required for a
measurement is transferred
to the pressure transmitter via
the antenna of the associated
reading and display device so
that the transmitter requires no
internal or external power supply
in the traditional sense (eg in the form of
a battery) and no external wiring.
As well as the system temperature, other
relevant information is transmitted as
standard, including media temperature,
date and time of the measurement,
and the unique serial number of the
pressure transmitter. The software
included with the unit allows subsequent
evaluation and further processing of
the measurement results previously
transmitted to PC or notebook via the
USB interface.
The pressure transmitters are available
in five different versions and cover the
usual measuring ranges for hydraulics
between 0-16 bar and 0-600 bar
(absolute), depending on requirements,
with a precision of max ±1 per cent
full scale. Temperature values can be
displayed from -40°C to +85°C.
The pressure transmitters are available
with ¼" BSPP (with FPM profile sealing
rings) or ¼" NPT screw-in threads.
Corresponding connection pieces are
available for the temporary or permanent
use of existing test couplings.
Measurements can be carried out at
the press of a button, without extensive
training and within a few seconds, and
then documented in a reliable process.
Unscrewing and re-installing pressure
gauges or other measuring and display
devices – practically a temporary
opening of the system – is not required.
Potential hazards for people, machines
and the environment, for example from
emitted residual oil in the test hose or
leaks at the measuring point, as well
as ingress of dirt into the system (eg in
dusty environments) can be effectively
excluded.
Walter Stauffenberg GmbH & Co KG
– Germany
Vacuum handling system
The Starlift vacuum system from Acimex can handle tubes, pipes (concrete, steel
or cast-iron), tanks and any other cylindrical device.
Handling by suction cups is a safe way to move products without any mechanical
contact. A rubber gasket ensures a soft touch without leaving marks or
deformation of the pipes.
Both driving and remote handling operations are carried out by a single
operator, on either an excavator or a forklift crane. Remote control ensures 100
per cent security.
Acimex – France
PT-RF pressure
transmitter with
reader
PT-RF pressure transmitters for direct installation