mini CORI-FLOW Coriolis Flow Meter & Controller

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 in the range of 0…300 kg/h (which corresponds with 0…4000 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 optional mass flow control by means of a separately mounted control valve or pump.

Technical specifications

Measurement / control system

Flow rates	Liquid: 0…300 kg/h (nominal flow rate: 100 kg/h); Gas: 0…4000 ln/min (N2); Full Scale (FS) value is user-configurable










Mass flow accuracy	Liquid: ±0,2% Rd; Gas: ±0,5% Rd


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





Zero stability (ZS)	< ± 50 g/h (Guaranteed at constant temperature and for unchanging process and environment conditions.)









Response time (sensor)	≤ 200 msec





Temperature effect	on zero: < 5 g/h/°C; on span: < 0,001% Rd/°C; self heating (at zero flow): < 10°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. External shocks or vibrations should be avoided.

Temperature accuracy	± 0,5 °C





Density accuracy	< ± 5 kg/m³ (at full scale flow)





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




Warm-up time	> 30 min for optimum accuracy

Mechanical parts
Sensor	single tube, DN 3.1






Material (wetted parts)	stainless steel 316L / 1.4404;

Housing	stainless steel 430F
Pressure rating (PN)	100 bar abs , higher on request





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

Seals	metal
Weight	4,7 kg
Ingress protection	IP65 (weatherproof)

Electrical properties

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


Max. power consumption	meter: max. 3 W; controller: 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
M15+C0I: Gas flow control valve	Kv-max= 6,6 x 10^-2
M15+C2I: Liquid flow control valve	Kv-max= 2,3 x 10^-3
M15+C5I: Gas/Liquid flow control valve	Kv-max= 6,6 x 10^-2
M15+F-004AI: Gas/Liquid flow control	Kv-max= 3,0 x 10^-1
M15+F-004BI: Gas/Liquid flow control	Kv-max= 1,0

External actuator options to be connected to the controller

Certification for hazardous areas

Approvals / certificates

Downloads

Brochures
mini CORI-FLOW M15 brochure
CORI-FILL brochure

Manuals
MINI CORI-FLOW Manual

Certificaten
ATEX: KEMA 10ATEX0111X
KCs certificate

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

Dimensional drawings
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
Dimensions Weld Adapters