The IN-FLOW direct mass flow meters are modular instruments with a rugged design meeting IP65 (dust- and waterproof) requirements.
These mass flow meters can be combined with integrated or close-coupled control valves to form compact digital mass flow controllers, whereby flow ranges are measured and controlled within the range of 10 – 200mln/min up to 50 – 5000ln/min. The ATEX approval for use of these instruments in Category 3, Zone 2 hazardous areas is pending.
Mass flow meters of the IN-FLOW series work on the basis of direct through-flow measurement (no bypass), following the constant temperature anemometer principle. The instruments contain no moving parts and have no obstructions to the flow path, which makes them ideal for low pressure drop applications and virtually insensitive to moisture or particulates.
The instruments have analogue I/O signals and also an RS232 connection as a standard feature. In addition, there is the possibility of integrating an interface board with DeviceNet, Profibus-DP, Modbus or FLOW-BUS protocol.
The basic PC board features integrated PID control and various alarm and diagnostic functions. With these multiple functions and range up to 1:100, the new IN-FLOW series of mass flow meters truly offers an excellent price-performance ratio.
Mass flow meters find application in process control systems, for example in food, chemical and petrochemical plants.