Coriolis Mass Flow Controller (MFC) for gases and liquids

Low Flow Coriolis Mass Flow Controller for 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 M12V11I Mass Flow Controller (MFC) is suited for highly accurate control of gas flow ranges between 0,1…5 g/h and 4…200 g/h (which corresponds with 1,33…66,6 ml_n/min up to 0,05…2,66 l_n/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 mass flow control by means of an integrated control valve (normally opened).

Technical specifications

Measurement / control system

Flow rates	0…200 g/h (nominal flow rate: 100 g/h); Full Scale (FS) value is user-configurable










Mass flow accuracy	± 0,5 % Rd


Repeatability	±0,05% of rate ± ½(ZS* x 100/actual flow)%
Turndown ratio	1:50





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 effect	on 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 temperature	0 … 70 °C ; for ATEX Cat.3, Zone 2 max. 50°C


Mounting	any 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-value	3,4 x 10^-4


Leak integrity, outboard	< 2 x 10^-9 mbar l/s He




Warm-up time	> 30 min. for optimum accuracy

Mechanical parts
Sensor	single tube, DN 0.25





Valve seat	Kalrez®-6375, other on request
Material (wetted parts)	stainless steel 316L or comparable

Housing	stainless steel 430F
Pressure rating (PN)	100 bar abs





Process connections	compression type or face seal (VCR/VCO) couplings, or Tri-Clamp flanges (welded)

Seals	metal
Weight	1,5 kg
Ingress protection	IP65 (weatherproof)

Electrical properties

Power supply	+15…24 Vdc +/- 10%; Max. ripple recommended: 50 mV tt


Max. power consumption	max. 7 W







Analog output	0…5 (10) Vdc, min. load impedance > 2 kΩ; 0 (4)…20 mA (sourcing), max. load impedance < 375 Ω
Analog setpoint	0…5 (10) Vdc, min. load impedance > 100 kΩ; 0 (4)…20 mA (sourcing), max. load impedance ~ 250 Ω






Digital communication	standard: RS232; options: PROFIBUS DP, DeviceNet™, Modbus RTU or FLOW-BUS

Electrical connection
Analog/RS232	8-pin DIN (male);



PROFIBUS DP	bus: 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

Downloads

Brochures
MINI CORI-FLOW M12-M14 brochure

Manuals
MINI CORI-FLOW Manual

Certificates
ATEX: KEMA 10ATEX0111X

Hook-up diagrams
Analog I-O RS232
DeviceNet
FLOW-BUS
Modbus
PROFIBUS DP

Dimensional drawing
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

mini CORI-FLOW™ M12V11I

Low Flow Coriolis Mass Flow Controller for Gases

Technical specifications

Recommended accessories

Related productss