Bronkhorst

IN-FLOW F-240MI

Industrial Style High-Pressure Mass Flow Controller for Gases

  • High accuracy, excellent repeatability
  • Fast response
  • Pressure rating up to 700 bar (delta-P max. 400 bar)
  • Compact, rugged design (IP65, dust and waterproof)
  • Virtually pressure and temperature independent
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IN-FLOWF-240MI

Industrial Style Gas Mass Flow Controllers for High Pressure / High Delta-P

Bronkhorst® model F-240MI Mass Flow Controllers (MFCs) are suited for accurate measurement and control of flow ranges between 0,2…10 mln/min and 10…500 mln/min with an operating pressure up to 700 bar and max. 400 bar pressure difference (ΔP). The MFC consists of a thermal mass flow sensor, a precise control valve and a microprocessor based pc-board with signal and fieldbus conversion. As a function of a setpoint value, the flow controller swiftly adjusts the desired flow rate. The IN-FLOW model is of rugged design (IP65) for use in industrial environments or even Zone 2 hazardous areas, with optional ATEX Cat. 3 approval.

IN-FLOW series are equipped with a digital pc-board, offering high accuracy, excellent temperature stability and fast response. 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 on-board interface can be mounted to provide DeviceNet™, PROFIBUS DP, PROFINET, Modbus, or FLOW-BUS protocols.


Technical specifications

Measurement / control system
Flow range, based on N2
(intermediate ranges available)
min. 0,2…10 mln/min
max. 10…500 mln/min
Accuracy (incl. linearity)
(based on actual calibration)
±0,5% Rd plus ±0,1% FS
Turndown 1:50
Multiple fluid capability storage of max. 8 calibration curves
Repeatability < 0,2% Rd
Settling time (controller) 2…4 seconds
Control stability < ±0,1% FS
Operating temperature

-10…+70°C;
for ATEX cat. 3 0…50°C

Temperature sensitivity zero: < 0,05% FS/°C; span: < 0,05% Rd/°C
Pressure sensitivity 0,1% Rd/bar typical N2; 0,01% Rd/bar typical H2
Leak integrity, outboard tested < 2 x 10-9 mbar l/s He
Attitude sensitivity max. error at 90° off horizontal 0,2% at 1 bar, typical N2
Warm-up time 30 min. for optimum accuracy
2 min for accuracy ± 2% FS
Mechanical parts
Material (wetted parts) stainless steel 316L or comparable
Pressure rating 700 bar abs
Min. ΔP 6 bar dif.
Max. ΔP up to 400 bar dif.
Process connections none, female thread;
special high-pressure adapters on request
Seals standard: Viton®; options: EPDM, Kalrez® (FFKM)
Ingress protection (housing) IP65
Electrical properties
Power supply +15…24 Vdc
Max. power consumption Supply
15 V
24 V
at voltage I/O
290 mA
200 mA
at current I/O
320 mA
215 mA
PROFIBUS DP add 53 mA (15 V supply) or 30 mA (24 V supply)
DeviceNet™ add 48 mA (24 V supply)
Analog output/command 0...5 (10) Vdc or 0 (4)…20 mA (sourcing output)
Digital communication standard: RS232;
options: PROFIBUS DP, PROFINET, DeviceNet™, Modbus RTU or ASCII, FLOW-BUS
Electrical connection
Analog/RS232 8 DIN (male);
PROFIBUS DP bus: 5-pin M12 (female);
power: 8 DIN (male);
PROFINET bus: 2 x 5-pin M12 (female) (in/out);
power: 8 DIN (male);
Devicenet™ 5-pin M12 (male);
FLOW-BUS/Modbus-RTU/ASCII 5-pin M12 (male)

Technical specifications and dimensions subject to change without notice.
For dimensional drawings and hook-up diagrams please visit the productpage on our website

Downloads

Brochures
IN-FLOW brochure

Manuals
General manual digital instruments
Operating instructions digital instruments

Hook-up diagrams
Analog IO - RS232
DeviceNet
FLOW-BUS
Modbus-RTU
PROFIBUS DP
PROFINET