Electricity + Control July 2015

FLOW MEASUREMENT + INSTRUMENTATION

ROUND UP

User-friendly mass flow controller

EL-FLOWPrestige is the next generation of Bronkhorst mass flow meters/ controllers for gases. Nearly all core components have been redesigned and many improvements and innovations have been incorpo- rated. With this new series Bronkhorst introduced the ‘Differential Temperature Balancing’ technology, ensuring high accuracy and a superb sensor stability. New, power efficient micro-processors with innova- tive multistage control loops have been applied to achieve enhanced dynamic behaviour.The newmetal housing is of robust yet compact design. EL-FLOW Prestige represents a truly ground-breaking shift in versatility and user-friendliness, featuring an on-board gas conversion model, various fieldbus options and customizable I/O functions.The control performance of EL-FLOW Prestige mass flow controllers is fac- tory adjusted to swiftly respond to setpoint changes, without overshoot. Moreover, the controllers are

highly resistant to mechanical shocks and pressure fluctuations, which may be caused by other devices consuming gas from the same source. As an option the mass flow controllers can be tuned for extra fast flow response (down to 500 milliseconds) or extra smooth control, depending on the requirements of the user’s process. The dynamic behaviour can also be tuned on site easily, by adjusting the controller speed settings via FlowTune, or by using our soft- ware tool FlowPlot. This free tool can also be used for device diagnostics or alarm and counter settings. Mecosa is the sole agent for Bronk- horst Cori-Tech in South Africa.

Enquiries:Tel 011 257 6100 or email measure@mecosa.co.za

Low volume variable area flowmeters

MAKING TECHNOLOGY WORK FOR YOU

KOBOLD Instrumentation, represented in South Africa by Instrotech – a Comtest Group company – has launched the KFR line of acrylic body flow- meters offering the perfect balance between low- cost, accuracy and range availability. Bridging the microflow and large flow ranges, this flowmeter can provide an effective solution to industrial applications, such as gas analysis and water

app l i c a t i ons . The KFR oper- ates on proven suspended float system, i.e. the installation po- sition is vertical and the flow is from bottom to top. It has a one-

piece acrylic body with PVC or metal fittings for durability. Large lettering and extra hash marks make the scale clearly visible and take the guess- work out of reading flow. Further enhancing read- ability, the low flow meters offer an inherently stable float design, while the larger flowmeters feature a float stabilisation mechanism. In the larger flow ranges, the stabilisation mechanism allows a smaller installation footprint at a cor- respondingly lower price. Most units are offered both with, or without, needle valves. Accuracy, value, low cost are three non-mutually exclusive attributes which are made possible by KOBOLD KFR flowmeters.

SENSING SOLUTION SPECIALIST

Enquiries:Tel. 010 595 1831 or email sales@instrotech.co.za

Tel: 011 615 7556 | Fax: 011 615 7513 | e-mail: clive@countapulse.co.za