With the new MG1000, German manufacturer Witt has launched a gas mixer with an extraordinary high flow rate of up to 1.264 Nm3/h (44,617 SCFH): The performance of the already impressive and award-winning MG500 series is more than doubled as a result.

The new system generates a mixture from two non-corrosive, non-toxic gases. A special EEx version is available for flammable gases. Covering a full spectrum of mixing ranges of 0-100 %, including smaller mixing ranges, such as 0-5 %, every conceivable concentration can be mixed - and delivered in any volume. Any pressure fluctuations in the gas supply are compensated by the integrated pressure equalising system. "These features alone make the MG1000 a benchmark device in the premium segment," remarks Product Manager Martin Bender.

This mixer is also distinguished by simple and user friendly handling. Thus, for example, a fully intuitive and infinite mixture setting is possible. Witt has installed an electro-pneumatic proportional mixing valve for this, which is controlled by the widely used Witt digital controller "Gas Control 50". This enables complete remote control of the mixer, including data management and evaluation, as well as export function via various interfaces. The gas mixture is permanently monitored by an analysis module before delivery. It is also possible to monitor the inlet pressures and temperatures. In the event of a fault, an alarm can be enabled, the mixer shut down or an external system automatically activated. The tolerable difference between the gas temperature and ambient temperature is 45 ?C (113 ?F). A heater for the mixer and control, as well as filters in the gas inlet, can be integrated. To protect the device settings, all operating elements, including the coloured touch screen, are located behind a lockable window.

The MG1000 is operated with a downstream buffer tank of up to 2000 litres. It is "Made in Germany" and meets all applicable quality and safety standards. The manufacturer Witt-Gasetechnik is regarded as one of the leading suppliers of mixing, metering and control systems, along with gas analysers and safety valves. Further information is available at www.wittgas.com

Martin Bender, Witt-Gasetechnik GmbH & Co KG. Email: witt@wittgas.com