Thermal mass flow-meter for gas
0 - 1 670 ln/min | EL-FLOW® Select Bronkhorst

EL-FLOW® Select Series Mass Flow Meters/Controllers are thermal mass flow meters of modular construction with a 'laboratory style' pc-board housing. Control valves can either be integrally or separately mounted, to measure and control gas flows from:

lowest range 0,014...0,7 mln/min
up to highest range 8...1670 ln/min

The control valve design of the mass flow controller distinguishes itself from competitive designs by its truly modular construction and its ability to be field replaced or changed by the user without any adjustment. The standard valve is normally closed and is available up to Kv-values of 1.5. Normally opened valves can also be supplied. Patented constructions enable us to handle high flows and/or pressures at differential pressures up to 400 bar in the EL-FLOW® program, a capability which is unique in the market place.

Features

- High accuracy (standard 0,5% Rd plus 0,1% FS)
- Fast response (down to 200 msec), excellent repeatability
- Optional Multi-Gas / Multi-Range functionality: freely programmable ranges and gas types
- Pressure ratings up to 400 bar (Multi-Gas / Multi-Range functionality up to 10 bar)
- Analog I/O-signals, RS232-connection; optional on-board fieldbus interface
- Electro-chemical polishing of all surfaces
- Compact, modular construction