TPT July 2015

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Technology News
July 2015 65
Tube s t ra i ghten i ng mach i ne
Bültmann GmbH
Hönnestr. 31
58809 Neuenrade Germany
Phone: +49 2394 180
Fax: +49 2394 18171
E-Mail:
Manufacturing program:
Production lines for processing
tubes, bars and profiles of all
metals
-Peeling equipment
-Drawing equipment
-Straightening equipment
-Pointing equipment
-Cutting equipment
-Chamfering equipment
-Packing equipment
-Testing equipment
-Magnetic billet heaters
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 a 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 the 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
Fax: +49 2392 2505
Email:
Website:
PT-RF pressure transmitters for direct
installation