For Low-Pressure Drop Or Corrosive Gas Service
For applications with only little differential pressure, Bronkhorst developed the LOW-ΔP-FLOW series mass flow meters and controllers. In these instruments, the flow resistance is minimized by a different sensor and by-pass construction.
- Lowest range 0,2…10 mln/min
- Highest range 20…1000 m3nh
- Environmental air sampling at atmospheric conditions
- Leak rate tests
- Gas consumption measurement, for example of natural gas, in low-pressure gas distribution systems
- Burner control
Control of mass flow with small pressure differences
The control of mass flow with small pressure difference comprises the LOW-ΔP-FLOW Mass Flow Controller in compact construction; the control valve and flow meter are integrated into one body. The maximum flow in these compact models is 1…50 ln/min Air, depending on the operating conditions. For the control of higher flow rates at very low differential pressures, Bronkhorst has devised special control valves with pressure compensation bellows (types F-004AC/F-004AI/F-004BI). These control valves are piped on to the flow meter while the electronic PI-control function is an integral part of the flow meter.
“Multibus” Digital Mass Flow Meters/Controllers
Bronkhorst developed their digital instruments according to the flexible “multibus” concept, due to which the instruments can be equipped with on-board interface board with CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP or FLOW-BUS protocol. More information about digital “multibus” communication.