mini CORI-FLOW Ex d XM14

Ex-Proof Coriolis Mass Flow Meter/Controller for low flow rates

  • High accuracy, excellent repeatability
  • Fast response
  • Independent of fluid properties
  • Additional density and temperature output
  • IECEx and ATEX Zone 1 approved
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mini CORI-FLOW Ex dXM14

Ex-proof Coriolis Mass Flow Meters/Controllers for low flow rates

mini CORI-FLOW Ex d Mass Flow Meters are precise and compact instruments for low flow rates, based on the Coriolis measuring principle, built in an explosion proof housing for use in IECEx and ATEX Zone 1 hazardous areas, ATEX approval II 2 G Ex d e IIB T6 Gb. Bronkhorst® model XM14 Mass Flow Meter (MFM) is suited for highly accurate measurement of gas or liquid flow ranges between 0,03…1 kg/h and 0,3…30 kg/h (which corresponds with 0,4…13,3 ln/min up to 4…400 ln/min when used on nitrogen) at operating pressures up to 107 bar (a).

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. 0,03…1 kg/h max. 0,3…30 kg/h
Mass flow accuracyLiquid: ±0,2% of rate; Gas: ±0,5% of rate
Repeatability±0,05% of rate ± ½(ZS* x 100/actual flow)%
Turndown ratioMeter: up to 1:100; Controller: ≥ 1:50
Zero stability (ZS)< ± 6 g/h
Response time (sensor)200 msec
Settling time (in control, typical)1 sec. (typical)
Temperature accuracy± 5 °C
Density accuracy< ± 5 kg/m³
Warm-up time< 30 min for optimum accuracy
Mechanical parts
Material (wetted parts)stainless steel 316L or comparable
Pressure rating (PN)107 bar abs
Process connections1/8" OD compression type; other on request
Ingress protectionIP66
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; on request: Ex i output 4...20 mA
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 connectionAll instrument connections are wired to screw terminals
Electrical connection
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 Ex d brochure

Manual (incl. dimensions)
mini CORI-FLOW Ex d - Manual

IECEx: IECEx DEK 12.0040
JPEx: DEK 19.0041

Bronkhorst USA inc.

57 South Commerce Way
Suite 120
USA - Bethlehem, PA 18017 
Tel.  +1-610-866-6750
[email protected]

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