The next-generation flagship Smart Trak Model 100 digital mass flowmeter - the Smart Trak 2 from Sierra Instruments - is now available in the UK from Litre Meter.
Smart-Trak 2 features Dial-A-Gas technology with up to 10 pre-programmed gases with the same unit.
Its internal microprocessor is pre-programmed with 10 gases that are commonly used in biotechnology, pharmaceutical, analytical and research applications - others gases can be substituted to customise the flowmeter.
This technology allows the instrument to be used for multiple applications, creating greater flexibility as well as helping to reduce its spares inventory.
The Smart Trak 2 has an accuracy of +/-0.5 per cent of full scale and can measure flow ranges from 0-10sccm to 0-1,000slpm.
Constructed in 316 stainless steel, the instrument features a fast-response control valve and primary standard calibration and NIST traceability.
It also has a pilot module that replaces expensive control and readout electronics, available mounted to the face of the instrument or in a handheld version.
The flowmeter enables a range of control functions including gas type, setpoint value and source, engineering units, output signal and valve state (open, closed or automatic).
These control functions are also available from a PC via RS-232.
Source code for RS-232 communication is provided but it has multi-drop RS-485/Modbus RTU capability using Sierra's Compod.
The Compod enables simple gas processes such as gas mixing and blending, batch control, leak testing and process monitoring at a fraction of the cost of complex programmed logic controllers (PLCs).
A Compod, coupled with Sierra's Smart-Trak mass flowmeters and controllers, simplifies basic flow control installations and permits the networking of multiple instruments using open-source Modbus RTU protocol.
Two digital outputs and one analogue input can be configured by the end user for a variety of process controls.
Unlike dedicated PLCs, a Compod is a small device that mounts locally to the face of the Smart-Trak MFC.
Litre Meter, a manufacturer and supplier of custom flowmeters, is the UK distributor for the Sierra Instruments range of flowmeters.
As with Litre Meter's own custom flowmeters, Sierra Instruments' range is designed to operate in harsh conditions.
