EX-FLOW F-106AX mass flow meter

Intrinsically Safe Gas Mass Flow Meters for high flow rates

Bronkhorst^® EX-FLOW Mass Flow Meters (MFMs) are suited for precise gas flow measurement in ATEX Zone 1 hazardous areas. The MFM should be connected to a power supply with galvanic isolation / preamplifier / readout system (located in the safe zone). See Bronkhorst^® E-8000 Series.

EX-FLOW model F-106AX covers flow ranges from 0,4...20 m³_n/h up to 4...200 m³_n/h (N₂-equivalent) at operating pressures up to 40 bar.

The intrinsically safe measuring head of the flow meter is tested according to ATEX 114 Directive 2014/34/EU and approved under EC-Type Examination Number: KEMA 01ATEX1172, protection II 2 G Ex ib IIC T4 Gb.
Other certifications: IECEx (IECEx DEK14.0060), TIIS (検・第TC21584号) and KCs = Ex ib IIC T4.

Technical specifications

Measurement / control system
Flow range (intermediate ranges available)	min. 0,4…20 m³_n/h max. 4…200 m³_n/h (based on N₂)









Accuracy (incl. linearity) (based on actual calibration)	± 1 % FS




Repeatability	< 0,2 % RD
Turndown ratio	1:50 (2…100%)
















Time constant	5 sec.








Operating temperature	-10 … +70 °C



Temperature sensitivity	zero: < 0,05% FS/°C; span: < 0,05% Rd/°C












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



Attitude sensitivity	max. error at 90° off horizontal 0,2% FS at 1 bar, typical N₂
Warm-up time	30 min. for optimum accuracy 2 min. for accuracy ± 2% FS

Mechanical parts







Material (wetted parts)	Stainless steel 316L or comparable


Pressure rating (PN)	up to 40 bar abs (PN10, 16, 40); for hazardous gases such as O₂, H₂, etc. do not exceed operating pressure of 10 bar; for higher pressure select a flanged type MFM, series F-107/F-117.





Process connections	Wafer type, for mounting between flanges according to DIN DN40 or ANSI 1½”

Seals	standard: FKM/Viton®; options: EPDM, FFKM/Kalrez®

Ingress protection	IP65

Electrical properties
























Output signal	15 … 20 mA (linear) Terminal connection, cable gland M16x1,5
I/O signals via PS/Readout (located in safe area)	analog: 0…5 Vdc, 0…10 Vdc, 0…20 mA, 4…20 mA; digital: RS232, PROFIBUS DP, DeviceNet™, Modbus RTU or ASCII, PROFINET, EtherCAT®, FLOW- BUS

Electrical connection











Ex-proof measuring head	Terminal connection, cable gland M16x1,5

Control valve options

External actuator options to be connected to the controller

Certification for hazardous areas

Approvals / certificates

Downloads

Brochures
EX-FLOW brochure

Manuals
Manual EX-FLOW meters and controllers - ATEX
Manual EX-FLOW meters and controllers - IECEx
Manual EX-FLOW meters and controllers - TIIS

Hook-up diagram
MFM Measuring Head

Dimensional drawing
Dimensional drawing F-106AX-F-106GX

Certificates
IECEx Certificate EX-FLOW MFM Measuring Head X100 : IECEx DEK14.0060
TIIS Certificate EX-FLOW MFM Measuring head X100 : 検・第TC21584号 (Japanese certification)
KCs Certificate EX-FLOW MFM Measuring Head X100 :: Ex ib IIC T4 (Korean certification)
ATEX CAT 2 Certificate EX-FLOW MFM Measuring Head X100 : KEMA 01ATEX1172
EU Declaration of Conformity Measuring Head X100 : ATEX CAT 2 (doc. 9.06.032)
ATEX CAT 2 Notification Directive 2014/34/EU : DEKRA 12ATEXQ0100

EX-FLOW F-106AX

Intrinsically Safe Gas Mass Flow Meters for high flow rates

Technical specifications

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