EL-FLOW Prestige Mass Flow Meters/Controllers for Gas0 pages

EL-FLOW Prestige
®

World’s most versatile Mass Flow
Meters / Controllers for Gases

Cutting edge technology
EL-FLOW Prestige is the next generation of Bronkhorst Mass Flow Meters/
Controllers for gases. Nearly all core components have been redesigned and
many improvements and innovations have been incorporated. With this new

Enjoy the benefits!

›t Innovative sensor
gradient insensitive, accurate temperature
and pressure correction, high linearity
›t ngenious laminar flow element
I
perfect flow split
›t mproved control valve
I
reliable, reproducible, outstanding
dynamic behavior
›t Upgraded electronics
versatile flow control algorithms,
embedded intelligence, reduced power
consumption

series Bronkhorst introduced the “Differential Temperature Balancing” technology,
ensuing a superb sensor stability. New, power efficient micro-processors with
innovative multistage control loops have been applied to achieve enhanced
dynamic behavior. The new metal housing is of robust yet compact design.

Adaptable to your process
The control performance of EL-FLOW Prestige Mass Flow Controllers is factory adjusted to
swiftly respond to setpoint changes, without overshoot. Moreover, the controllers are highly
resistant to mechanical shocks and pressure fluctuations, which may be caused by other
devices consuming gas from the same source. As an option the MFCs can be tuned for extra
fast response (settling times t98% down to 500 msec) or extra smooth control, depending on
the requirements of the user’s process. The dynamic behavior can also be tuned on site easily,
by adjusting the controller speed settings via FlowTune™, or by using our software tool
FlowPlot™. This free tool can also be used for device diagnostics or alarm and counter settings.

Reduce your cost of ownership

Select the I/O options of your preference

The mass flow meters and controllers can be
supplied in full scale ranges from 0,7 mln/min up
to 20 ln/min Air-equivalent at max. 64 or 100 bar
(1000 or 1500 psi) pressure rating. Like previous
Bronkhorst instruments, EL-FLOW Prestige offers
high flexibility due to the multi-gas/multi-range
functionality. This functionality, now extended to
25 gases, is easily accessible via the FlowTune™
software or PLC; there is no need to disconnect
the instrument from your system. For additional
gas types the user can calculate accurate fluid
properties for conversion by means of our free,
online software tool Fluidat® on the Net. Users
of EL-FLOW Prestige instruments can rescale
their instruments on site, saving time and money
for dismounting and recalibration. Furthermore,
original equipment manufacturers (OEMs) are
able to drastically reduce the variety of spare
instruments kept on stock and thus reduce the
cost of ownership.

Numerous input/output options can be offered through the programmable sub-D 9-pin
connector. In addition to the various analog signal options and the standard RS232
communication, there are such options as RS485 communication, digital frequency/pulse
output, alarm output/reset, valve purge/close and analog valve output. Furthermore
Bronkhorst offers various integrated fieldbus options: DeviceNet™, PROFIBUS DP,
PROFINET, Modbus RTU/ASCII, EtherCAT® and FLOW-BUS. The latter is an RS485 based
fieldbus, specifically designed by Bronkhorst High-Tech for their mass flow metering and
control solutions. For the convenience of customers working with LabVIEW™ (graphical
software by National Instruments) Bronkhorst provides a certified plug & play instrument
driver for instruments with FLOW-BUS™ interface.

Customise your flow device
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User configurable control characteristics
Gases selectable from embedded database
Analog I/O or digital communication (RS232 / RS485 / fieldbus)
Various on-board alarm and counter functions
Wide choice of seals and process adapters
Normally Closed / Normally Opened control valve function
Optional, integrated shut-off valve