IN-PRESS Industrial style Digital Pressure Meters / Controllers0 pages

IN-PRESS

Industrial Style Digital Pressure Meters and Controllers

> Introduction
Bronkhorst High-Tech B.V., the European market leader in thermal
Mass Flow Meters/Controllers and Electronic Pressure Controllers,
has many years experience in designing and manufacturing precise
and reliable measurement and control devices. With a wide range
of instruments, Bronkhorst High-Tech offers innovative solutions
for many different applications in many different markets.
The instruments are made to customers’ specification, in various
styles, suitable for use in laboratory, industrial and hazardous areas.

> IN-PRESS series for industrial
environments
The digital electronic Pressure Meters and Controllers of the
IN-PRESS series are of rugged design (IP65) for use in pilot and
production plants in industrial environments or even Zone 2 hazardous areas, with optional ATEX Category 3 approval. The instruments
have a well-proven compact thru-flow design and are available in
pressure ranges from 2…100 mbar up to 8…400 bar, both in absolute
and relative (gauge) pressure. The pressure controller performs
with high accuracy and repeatability and should be specified for
forward or backward pressure control.

> State of the art digital design
The IN-PRESS Pressure Meter/Controller is equipped with a diaphragm type piezoresistive pressure sensor and a digital pc-board,
as standard offering high accuracy, stability and reliability. The
main digital pc-board contains all of the general functions needed
for measurement and control. In addition to the standard RS232
output the instruments also offer analog I/O. As an option, an integrated interface board provides DeviceNetTM, PROFIBUS DP,
Modbus or FLOW-BUS protocols. The latter is a fieldbus based
on RS485, specifically designed by Bronkhorst High-Tech for their
mass flow and pressure metering and control solutions.

> Pressure Controllers for every application
The pc-board of an IN-PRESS Pressure Meter features integrated,
adaptable PID control for fast and smooth control of any electronically driven valve. With reference to the specific fields of application
there are different series of unique Bronkhorst High-Tech proportional, electromagnetic control valves.

There is a standard direct acting valve for common applications, a
pilot operated valve for high flow rates, the so-called Vary-P valve
that can cope with up to 400 bar ΔP and a bellows valve for applications with very low differential pressure.

> General IN-PRESS features
utWeatherproof IP65 housing
utHigh accuracy and repeatability
utHigh pressure capability up to 400 bar
utStable control even at varying process volumes
utOptional: ATEX approval Cat.3, Zone 2
utAnalog I/O signals: 0…5(10) V / 0(4)…20 mA
utigital communication: RS232, DeviceNetTM, PROFIBUS DP,
D

Modbus-RTU/ASCII or FLOW-BUS

> Fields of application
ut rocess pressure control in food, pharma and
P
(petro-) chemical industries

utFermenter pressure control (Biotechnology)
utFuel Cell technology
ut rotective gas pressure control in extrusion moulding
P
processes