Bronkhorst

LOW-ΔP-FLOW F-201DS

Mass Flow Controller for low pressure drop or corrosive gas service, with integrated shut-off valve

  • Large bore capillary (thermal bypass sensor)
  • Very low pressure drop
  • Less sensitivity to humidity or dirt
  • Suitable of corrosive gases
  • Easy to purge
  • Integrated shut-off valve for extra efficiency or safety
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LOW-ΔP-FLOWF-201DS

Thermal Mass Flow Controllers for low pressure drop or corrosive gas applications

Bronkhorst® model F-201DS Mass Flow Controllers (MFCs) are suited for precise measurement of flow ranges between 0,42…21 mln/min and 0,042…2,1 ln/min (N2-equivalent). The instruments are particularly suited for corrosive gases or applications with very low differential pressure (∆P). Compared to conventional instruments, LOW-∆P-FLOW MFCs have larger flow channels to minimize the risk of clogging, facilitate cleaning and purging, and cause lower pressure drop (the sensor only requires 0,5 to 5 mbar). For extra efficiency or safety, the F-201DS features an integrated, electrically operated shut-off valve.

The integrated digital pc-board provides signal and fieldbus conversion as well as PID controller functionality for mass flow control by means of the integrated control valve. 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 CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus or FLOW-BUS protocols.


Technical specifications

Measurement / control system
Flow range (intermediate ranges available)min. 0,42…21 mln/min max. 0,042…2,1 ln/min
Accuracy (incl. linearity) (based on actual calibration)± 1 % FS
Repeatability< 0,2 % RD
Turndown ratio1:50 (2...100%)
Multi fluid capabilitystorage of max. 8 calibration curves
Settling time (in control, typical)2 3 sec.
Control stability< ± 0,1 % FS (typical)
Operating temperature-10 +70 °C
Temperature sensitivity< 0,1% FS/°C
Max. Kv-value6,5 x 10-2
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Warm-up time30 min. for optimum accuracy 2 min for accuracy ± 2% FS
Mechanical parts
Material (wetted parts)stainless steel 316L or comparable; other on request
Pressure rating (PN)10 bar abs
Max. ΔP3 bar dif
Process connectionscompression type or face seal couplings
Sealsstandard: Viton®; options: EPDM, Kalrez® (FFKM)
Weight1,1 kg
Ingress protectionIP40
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
Shut-off valve (N/C)+24 Vdc, 3 W; using a shut-off control adapter reduces the power consumption
PROFIBUS DPadd 53 mA (15 V supply) or 30 mA (24 V supply)
PROFINETadd 77 mA (15 V supply) or 48 mA (24 V supply)
EtherCAT®add 66 mA (15 V supply) or 41 mA (24 V supply)
CANopen® / DeviceNet™add 48 mA (24 V supply)
Analog output0...5 (10) Vdc or 0 (4)…20 mA (sourcing output)
Digital communicationstandard: RS232; options: PROFIBUS DP, DeviceNet™, PROFINET, EtherCAT®, Modbus RTU or ASCII, FLOW-BUS
Electrical connection
Analog/RS2329-pin D-connector (male);
PROFIBUS DPbus: 9-pin D-connector (female); power: 9-pin D-connector (male);
CANopen® / DeviceNet™5-pin M12-connector (male);
FLOW-BUS/Modbus-RTU/ASCIIRJ45 modular jack
Control valve options
External actuator options to be connected to the controller
Ex-proof specifications
Approvals / certificates
Environmental / EMC0,1% Rd/bar typical N2

Technical specifications subject to change without notice.

For dimensional drawings and hook-up diagrams please visit the product page on our website

Downloads

Brochures
LOW-ΔP-FLOW Brochure

Manuals
General manual digital instruments
Operating instructions digital instruments

Hook-up diagrams
Analog IO - RS232
DeviceNet
EtherCAT
FLOW-BUS
Modbus
Optional Bus and IO Configurations
PROFIBUS DP
PROFINET
CANopen

Dimensional drawing
Dimensional drawing F-201DS


BRONKHORST (UK) Ltd

1 Kings Court
Willie Snaith Road
Newmarket Suffolk CB8 7TG
Tel. +44 1223 833222
[email protected]

      
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