Bronkhorst

IN-FLOW 'High-Flow' F-136BI

Industrial Style Mass Flow Meter for High Gas Flow

  • High accuracy, excellent repeatability
  • Pressure rating 400 bar
  • Virtually pressure and temperature independent
  • Compact design
  • Rugged, weatherproof housing (IP65, dust and waterproof)
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IN-FLOW 'High-Flow'F-136BI

Industrial Style Gas Mass Flow Meters for high flow rates

Bronkhorst® model F-136BI Mass Flow Meters (MFMs) are suited for precise measurement of flow ranges between 1…50 m3n/h and 7,5...375 m3n/h at operating pressures up to 400 bar. The MFM consists of a thermal mass flow sensor and a microprocessor based pc-board with signal and fieldbus conversion and a PID controller for optional mass flow control by means of a separately mounted control valve. 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 or FM Class I, Div. 2 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 CANopen®, DeviceNet™, PROFIBUS DP, PROFINET, Modbus RTU/ASCII or FLOW-BUS protocols.


Technical specifications

Measurement / control system
Flow range (intermediate ranges available)min. 1…50 m3n/h
max. 7,5…375 m3n/h
(based on N2)
Accuracy (incl. linearity) (based on actual calibration)± 1 % FS
Repeatability< 0,2 % RD
Turndown ratio1:50
Multi fluid capabilitystorage of max. 8 calibration curves
Response time (sensor)typical: 0,5 sec.
Operating temperature-10 … +70 °C
for ATEX cat. 3 and FM Class 1 Div 2 : 0…50°C
Temperature sensitivityzero: < 0,05% FS/°C; span: < 0,05% Rd/°C
Pressure sensitivity0,1% Rd/bar typical N2; 0,01% Rd/bar typical H2
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Attitude sensitivitymax. error at 90° off horizontal 0,2% FS at 1 bar, typical N2
Warm-up time30 min. for optimum accuracy
2 min. for accuracy ± 2% FS
Mechanical parts
Material (wetted parts)stainless steel 316L or comparable
Pressure rating (PN)400 bar abs.
Note: Generally, Bronkhorst develops products for an infinite lifetime. For this model, for applications above 340 bar, the maximum allowable pressure cycles is limited to 680.000 cycles.
Process connectionscompression type or face seal couplings
Sealsstandard: Viton®;
options: EPDM, Kalrez® (FFKM)
Ingress protectionIP65
Electrical properties
Power supply+15 … 24 Vdc
Max. power consumption
Supply
15 V
24 V
at voltage I/O
95 mA
65 mA
at current I/O
125 mA
85 mA
extra for fieldbus
<75 mA
<50 mA
Analog output0…5 (10) Vdc or 0 (4)…20 mA (sourcing output)
Digital communicationstandard: RS232;
options: CANopen®, DeviceNet™, PROFIBUS DP, PROFINET, Modbus RTU/ASCII or FLOW-BUS
Electrical connection
Analog/RS2328 DIN (male);
PROFIBUS DPbus: 5-pin M12 (female);
power: 8 DIN (male);
CANopen® / DeviceNet™5-pin M12 (male);
FLOW-BUS/Modbus-RTU/ASCII5-pin M12 (male)
PROFINETbus: 2 x 5-pin M12 (female) (in/out);
power: 8 DIN (male);
IEC 61010-1IEC-61010-1:2010 including national deviations for UL (61010-1:2012) and CSA (C22.2 No. 61010-1-12)
Control valve options
External actuator options to be connected to the controller
Ex-proof specifications
Approvals / certificates

Technical specifications subject to change without notice.

For dimensional drawings and hook-up diagrams please visit the product page 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
CANopen
Optional Bus and IO Configurations

Dimensional drawing
Dimensional Drawings F-136BI

Certificates
ATEX: KEMA 10ATEX0111X
KCs certificate IN-FLOW MFM (Korean)
FM approval Class I, Div. 2 (US), FM17US0363X
FM approval Class I, Div. 2 (CA), FM17CA0173X


Bronkhorst High-Tech B.V.

Nijverheidsstraat 1A
NL-7261 AK Ruurlo (NL)
Tel. +31 573 45 88 00
info@bronkhorst.com

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