mini CORI-FLOW™ M12V14I

Low Flow Coriolis Mass Flow Controller

  • High accuracy, excellent repeatability
  • Fast response
  • Independent of fluid properties
  • Additional density and temperature output
  • Compact, rugged (IP65) design
  • Optional ATEX approval Cat.3, Zone 2
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mini CORI-FLOW™M12V14I

Low Flow Coriolis Mass Flow Controllers for Liquids

mini CORI-FLOW™ Mass Flow Meters and Controllers are precise and compact instruments, based on the Coriolis measuring principle, designed to cover the needs of the low flow market. Bronkhorst® model M12V14I Mass Flow Controller (MFC) is suited for highly accurate control of liquid flow in the range 0…200 g/h at operating pressures up to 100 bar (higher on request). The instruments are equipped with a robust IP65 weatherproof housing and are optionally available with ATEX approval for use in Zone 2 hazardous areas.

The instrument contains a microprocessor based pc-board with signal and fieldbus conversion and a PID controller for mass flow control by means of an integrated control valve (normally closed).

Technical specifications

Measurement / control system
Flow rates0…200 g/h (nominal flow rate: 100 g/h);
Full Scale (FS) value is user-configurable;
advised minimum flow depends on fluid properties
Mass flow accuracy± 0,2 % Rd
Repeatability± 0,5 % of rate ± ½(ZS* x 100/actual flow)%
Turndown ratio1:50
Zero stability (ZS)< ± 0.1 g/h
(Guaranteed at constant temperature and for unchanging process and environment conditions.)
Settling time (in control, typical)1 sec. (typical)
Temperature effecton zero: < 0,01 g/h/°C;
on span: < 0,001% Rd/°C;
self heating (at zero flow): < 15°C
(Depends on flow rate, heat capacity fluid, T amb., T fluid and cooling capacity.)
Operating temperature0 … 70 °C ;
for ATEX Cat.3, Zone 2 max. 50°C
Mountingany position, attitude sensitivity negligible.
Instrument to be rigidly bolted to a stiff and heavy mass or construction for guaranteed zero stability.
External shocks or vibrations should be avoided.
Temperature accuracy± 0,5 °C
Density accuracy< ± 5 kg/m³ (at full scale flow)
Max. Kv-value2,4 x 10-3
Max. fluid viscosity0,1 Pa*s
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Warm-up time> 30 min for optimum accuracy
Mechanical parts
Sensorsingle tube, DN 0.25
Valve seatKalrez®-6375, other on request
Material (wetted parts)stainless steel 316L or comparable
Housingstainless steel 430F
Pressure rating (PN)100 bar abs
Process connectionscompression type or face seal (VCR/VCO) couplings, or Tri-Clamp flanges (welded)
Purge connection1/8” OD compression type or 1/8" VCR
Weight1,5 kg
Ingress protectionIP65 (weatherproof)
Electrical properties
Power supply+15…24 Vdc +/- 10%
Max. ripple recommended: 50 mV tt
Max. power consumptionmax. 7 W
Analog output0…5 (10) Vdc, min. load impedance > 2 kΩ;
0 (4)…20 mA (sourcing), max. load impedance < 375 Ω
Analog setpoint0…5 (10) Vdc, min. load impedance > 100 kΩ;
0 (4)…20 mA (sourcing), max. load impedance ~ 250 Ω
Digital communicationstandard: RS232;
options: PROFIBUS DP, DeviceNet™, Modbus RTU or FLOW-BUS
Electrical connection
Analog/RS2328-pin DIN (male);
PROFIBUS DPbus: 5-pin M12 (female)
power: 8-pin DIN (male);
CANopen® / DeviceNet™5-pin M12 (male);
FLOW-BUS/Modbus-RTU/ASCII 5-pin M12 (male);
Control valve options
External actuator options to be connected to the controller
Certification for hazardous areas
Approvals / certificates

Technical specifications subject to change without notice.

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


mini CORI-FLOW M12-M14 brochure
CORI-FILL brochure
Hook-up diagrams
Analog I-O RS232
Dimensional drawings
Meters - compression type weld adapters
Meters - VCR type machined adapters
Controllers - compression type weld adapters
Controllers - VCR type machined adapters
C5I Controllers - compression type weld adapters
C2I Controllers - compression type weld adapters
Controllers - on a 2 kg mass block
Controllers - on a 4 kg mass block
Dimensions Weld Adapters
Solids 3D
M12V14I-M13V14I-M14V14I 1-4VCR
M12V14I-M13V14I-M14V14I excl. adapters
Mass block mini Cori-Flow Mxx 2kg
Mass block mini Cori-Flow Mxx 4kg