Bronkhorst

mini CORI-FLOW™ M14

Low Flow Coriolis Mass Flow Meter

  • 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™M14

Low Flow Coriolis Mass Flow Meters 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 M14 Mass Flow Meter (MFM) is suited for highly accurate measurement of gas or liquid flow in the range of 0…30 kg/h (which corresponds with 0…400 ln/min when used on nitrogen) at operating pressures up to 200 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 ratesLiquid: 0…30 kg/h (nominal flow rate: 10 kg/h);
Gas: 0…400 ln/min (N2);
Full Scale (FS) value is user-configurable
Mass flow accuracyLiquid: ±0,2% Rd;
Gas: ±0,5% Rd
Repeatability± 0,05 % of rate ± ½(ZS* x 100/actual flow)%
Turndown ratioup to 1:100
Zero stability (ZS)< ± 6 g/h
(Guaranteed at constant temperature and for unchanging process and environment conditions.)
Response time (sensor)200 msec
Temperature effecton zero: < 0,5 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)
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Warm-up time> 30 min for optimum accuracy
Mechanical parts
Sensorsingle tube, DN 1.3
Material (wetted parts)stainless steel 316L or comparable;
optional: Hastelloy-C22
Housingstainless steel 430F
Pressure rating (PN)200 bar abs , higher on request
Process connectionscompression type or face seal (VCR/VCO) couplings, or Tri-Clamp flanges (welded)
Sealsmetal
Weight1,1 kg
Ingress protectionIP65 (weatherproof)
Electrical properties
Power supply+15…24 Vdc +/- 10%
Max. ripple recommended: 50 mV tt
Max. power consumption3 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/ASCII5-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

Downloads

Brochures
mini CORI-FLOW M12-M14 brochure
CORI-FILL brochure
Manuals
MINI CORI-FLOW Manual
MINI CORI-FLOW M1x Quick Installation Guide
Certificaten
ATEX: KEMA 10ATEX0111X
KCs certificate
Hook-up diagrams
Analog I-O RS232
DeviceNet
FLOW-BUS
Modbus
PROFIBUS DP
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
M12-M13-M14 1-4 VCR.type
M12-M13-M14 excl. adapters
Mass block mini Cori-Flow Mxx 2kg
Mass block mini Cori-Flow Mxx 4kg