EX-Flow Mass Flow Meters & Controllers
The Mass Flow Meters of the Bronkhorst EX-FLOW series are of rugged design for gas flow applications in hazardous environments.
The intrinsically safe measuring head is tested according to ATEX95 Directive 94/9/EC and approved under EC-Type Examination
Number: KEMA 01ATEX1172, protection II 2 G Ex ib IIC T4 Gb.
This stands for:
II 2 G = ATEX group and category
Ex ib IIC T4 = CENELEC marking
ib= intrinsically safe Zone 1
IIC=highest gas group with a minimum ignition energyof 20 μJ, with gases such as acetylene or hydrogen
T4= max. surface temperature of 135C
Gb= IEC equipment protection level
The housing of the electronics compartment is rated to IP65.Mass Flow Meters can be supplied in ranges starting from
0,16…8 mln/min up to 11000 m3n/h air-equivalent, with pressure rating between vacuum and 700 bar. In combination with control
valves, either integrated or separate, Mass Flow Controllers can be offered up to 10…500 m3n/h air-equivalent.
Accuracy +/- 1% FS
Flow Range 0.16….7.5mln/min up to 222……11,000 M3 n/hr