BRONKHORST EX-FLOW Ex-Proof (ATEX Zone-1 Certified) Mass Flow Meters / Controllers for gases

General
EX-FLOW instruments are thermal Mass Flow Meters / Controllers of rugged design and suitable for gas flow application in hazardous areas.
The intrinsically safe measuring head is tested according to ATEX 95 Directive 94/9/EC and approved under EC-Type Examination Number: KEMA 01ATEX1172, protection II 2 G Ex ib IIC T4 Gb. The housing of the electronics compartment is to IP65 classification. Control valves can either be integrally or separately mounted, to measure and control gas flows (air-equivalent) from:
Lowest range  0,16 ... 8 mln/min
Highest range  220 ... 11.000 m3n/h (Mass Flow Meter)
                      10 ... 500 m3n/h (Mass Flow Controller)
 

Gas Flow Control
An EX-FLOW Mass Flow Controller has a control valve with fast and smooth control characteristics.
The flow meter and valve should be connected (via separate cables) to a power supply with galvanic isolation / preamplifier / readout system (located in the safe zone) which contains a controller board to complete the control loop. The control valve receives its input from the controller board and immediately responds to any deviation between the output signal from the flow sensor and the setpoint signal.
Bronkhorst High-Tech applies two sorts of coils:
Style "XB" = intrinsic safe coil; needs safety barrier.
protection II 1 G Ex ia IIC T6
protection II 1 D Ex ta IIIC T80°C
Style "XC" = moulded coil; no safety barrier required.
protection II 2 G Ex eb IIC T4
protection II 2 D Ex tb IIIC T130°C
EX-FLOW features
• ATEX approval Cat.2, Zone 1
• Pressure ratings up to 700 bar
• Rugged, weatherproof housing (IP65, dust and waterproof)
• optional: low-ΔP versions up to 4...200 ln/min
• low capacities (based on air)

Mass Flow Meter (MFM)
Ranges
Type of process connections
Series F-110CX
min. 0,16 ... 8 mln/min
max. 0,2 ... 10 mln/min
Compression type couplings
Series F-111BX
min. 0,2 ... 10 mln/min
max. 0,4 ... 20 ln/min
Compression type couplings
Series F-111AX
min. 0,1 ... 5 ln/min
max. 2 ... 100 ln/min
Compression type couplings
Series F-112AX
min. 0,2 ... 10 ln/min
max. 5 ... 250 ln/min
Compression type couplings
Series F-113AX
min. 2 ... 100 ln/min
max. 25 ... 1250 ln/min
Compression type couplings
Series 
F-116AX/BX
min. 0,4 ... 20 m3n/h
max. 10 ... 500 m3n/h
Compression type couplings
Series 
F-106AX/.../GX
min. 0,4 ... 20 m3n/h
max. 220 ... 11000 m3n/h
"wafer type" for mounting
between flanges
Series 
F-107AX/.../DX
min. 0,4 ... 20 m3n/h
max. 36 ... 1800 m3n/h
flanged connection
(DIN or ANSI)
 

 

Mass Flow Controller (MFC)
Ranges
Series F-200CX 1)
min. 0,2 ... 10 mln/min
max. 0,2 ... 10 mln/min
Series F-201CX 1)
min. 0,22 ... 11 mln/min
max. 0,4 ... 20 ln/min
Series F-201AX 1)
min. 0,1 ... 5 ln/min
max. 2 ... 100 ln/min
Series F-202AX 2)
min. 0,2 ... 10 ln/min
max. 5 ... 250 ln/min
Series F-203AX 2)
min. 2 ... 100 ln/min
max. 25 ... 1250 ln/min
Series F-206AX/BX 2)
min. 0,4 ... 20 m3n/h
max. 10 ... 500 m3n/h
Series F-230MX/
F-231MX/F-232MX 3)
min. 0,2 ... 10 mln/min
max. 2 ... 100 ln/min

REQUEST FORM
TAGS ;
BRONKHORST EX-FLOW,Ex-Proof (ATEX Zone-1 Certified) Mass Flow Meters ,Controllers for gases,Flowmeter