mini CORI-FLOW™ M15

Low Flow Coriolis Mass Flow Meter / 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™M15

Low Flow Coriolis Mass Flow Meters / Controllers for Liquid and Gases

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 M15 Mass Flow Meter (MFM) is suited for highly accurate measurement of gas or liquid flow ranges between 0,2…5 kg/h and 3…300 kg/h (which corresponds with 2,67…66,6 ln/min up to 40…4000 ln/min when used on nitrogen) 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 optional mass flow control by means of a separately mounted control valve or pump.

Technical specifications

Measurement / control system
Flow range (intermediate ranges available)min. 0,2…5 kg/h max. 3…300 kg/h
Mass flow accuracyLiquid: ±0,2% of rate; Gas: ±0,5% of rate
Repeatability± 0,5 % of rate ± ½(ZS* x 100/actual flow)%
Turndown ratioup to 1:100
Zero stability (ZS)< ± 50 g/h
Response time (sensor)200 msec
Operating temperature0 70 for ATEX Cat.3, Zone 2 max. 50°C
Temperature accuracy± 0,5 °C
Density accuracy< ± 5 kg/m³
Leak integrity, outboardOutboard < 2 x 10-9 mbar l/s He
Warm-up time> 30 min for optimum accuracy
Mechanical parts
Material (wetted parts)stainless steel 316L / 1.4404;
Housingstainless steel 430F
Pressure rating (PN)100 bar abs higher on request
Process connectionscompression type or face seal couplings (welded)
Ingress protectionIP65 (weatherproof)
Electrical properties
Power supply+15…24 Vdc +/- 10% Max. ripple recommended: 50 mV tt
Max. power consumptionmeter: max. 3 W; controller: max 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, 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);
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


mini CORI-FLOW M15 brochure
CORI-FILL brochure

MINI CORI-FLOW Quick Installation Guide


Hook-up diagrams
Analog I-O RS232

Dimensional drawing
M15 Mass Flow Meters
M15 Mass Flow Meter with C2I control valve
M15 Mass Flow Meter with C5I control valve
M15 Mass Flow Meter with F-002AI control valve
M15 Mass Flow Meter with F-003AI control valve
M15 Mass Flow Meter with F-003BI control valve
M15 Mass Flow Meter with F-004AI control valve
M15 Mass Flow Meter with F-004BI control valve
M15 Mass Flow Meter with F-033CI control valve

Solids 3D
Mass block mini Cori-Flow Mxx 2kg
Mass block mini Cori-Flow Mxx 4kg


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

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