Bronkhorst

LOW-ΔP-FLOW F-100D

Mass Flow Meter for low pressure drop or corrosive gas service

  • Large bore capillary (thermal bypass sensor)
  • Very low pressure drop
  • Less sensitivity to humidity or dirt
  • Suitable of corrosive gases
  • Easy to purge
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LOW-ΔP-FLOWF-100D

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

Bronkhorst® model F-100D Mass Flow Meters (MFMs) are suited for precise measurement of flow ranges between 0,2…10 mln/min and 0,4…20 mln/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 meters 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).

The integrated digital pc-board provides signal and fieldbus conversion as well as PID controller functionality for optional mass flow control by means of a (separately mounted) 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. 0,2…10 mln/min max. 0,4…20 mln/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
Response time (sensor)1 2 sec.
Operating temperature-10 +70 °C
Temperature sensitivity< 1% FS/°C
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
Process connectionscompression type or face seal couplings
Sealsstandard: Viton®; options: EPDM, Kalrez® (FFKM)
Weight0,4 kg
Ingress protectionIP40
Electrical properties
Power supply+15 24 Vdc
Max. power consumption meter
Supply
15 V
24 V
at voltage I/O
95 mA
65 mA
at current I/O
125 mA
85 mA
Max. Power consumption controller
Supply
15 V
24 V
at voltage I/O
290 mA
200 mA
at current I/O
320 mA
215 mA
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; 0,01% Rd/bar typical H2

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-100D


Bronkhorst USA inc.

57 South Commerce Way
Suite 120
USA - Bethlehem, PA 18017 
Tel.  +1-610-866-6750
[email protected]

     
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