Bronkhorst®
Instruction Manual EL-FLOW® Prestige
9.17.084N
7
1
Introduction
1.1
Scope of this manual
This manual covers the
EL-FLOW® Prestige
series mass flow meters/controllers for gases. This manual includes product
information, installation instructions, operation, maintenance and troubleshooting tips.
1.2
Intended use
EL-FLOW® Prestige
instruments are designed to accurately measure and/or control gas flow rates of a specified gas at the
conditions stated on the serial number label. The gas in the pressurized system in which the instrument is mounted has to
be clean and dry. The instruments are suited for general purpose indoor (dry) applications, like laboratories and machine
enclosures. The instruments can be used for either (fast) switching gas flow or for controlling a constant flow rate (mass
flow controllers only).
The wetted materials incorporated in the EL-FLOW® Prestige are compatible with media and conditions (e.g. pressure,
temperature) as specified at ordering time. If you are planning to use the product (including any third party components
supplied by Bronkhorst, such as pumps or valves) with other media and/or other conditions, always check the wetted
materials (including seals) for compatibility. See the technical specifications of the product and consult third party
documentation (if applicable) to check the incorporated materials.
Responsibility for the use of the equipment with regard to suitability, intended use, cleaning and corrosion resistance of the
applied materials against the processed media lies solely with the end user.
Where appropriate, this document recommends or prescribes safety measures to be taken with respect to media usage or
working with the described equipment under the specified conditions. The end user is responsible for taking the necessary
safety precautions and proper use of appropriate (personal) protective equipment, even if such is not explicitly
recommended or required in this document.
The end user is considered to be familiar with the necessary safety precautions, and to comply with the appropriate
protective measures as described in the Material Safety Data Sheets of the media to be used in the system (if applicable).
Bronkhorst High-Tech B.V. cannot be held liable for any damage resulting from improper or unsafe use, use for other than
the intended purpose or use with other media and/or under other conditions than specified on the purchase order.
1.3
Product description
EL-FLOW® Prestige
is the next generation of Bronkhorst® Mass Flow Meters/ Controllers using the latest, highly accurate,
thermal by-pass sensor technology and featuring excellent control characteristics. Thanks to the advanced sensor
technology in combination with a state-of-the-art printed circuit board, the instruments feature improved long-term
stability as well as an unsurpassed temperature stability. Furthermore, due to a power efficient microprocessor, the power
consumption of the instrument is reduced. The mass flow meters and controllers can be supplied in full scale ranges from
0,7 ml
n
/min up to 100 l
n
/min Air-equivalent at max. 64 or 100 bar (1000 or 1500 psi) pressure rating.
EL-FLOW® Prestige
offers high flexibility due to the multi-gas/multi-range functionality. This function, now extended to
100 gases and mixtures thereof, 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.
