Endress+Hauser believes a new era has begun with the successful completion of a three-month trial period in a local mining application that proved the viability of radar technology in solids level measurement.
To date, solids radar measurement devices have been launched with no great success, often failing to satisfy basic client requirements such as consistent accuracy and reliability. Having already captured a firm place in non-invasive level measurement in liquids of all kinds after the introduction of 2-wire technology, radar has now been perfected for use in solids measurement. This is largely due to the development of auxiliary components, which achieved an enormous increase in radar sensor sensitivity with low power input.
"We placed great importance on making radar work and work well in solids measurement," says Endress+Hauser marketing manager, Grant Joyce. "The reliability, accuracy and cost-effective nature of radar technology gave us the confidence that, once we had a working solution, it would be welcomed into the market."
Once the instrumentation specialist was ready to take its Micropilot M FMR250 solids radar to market, an ideal opportunity presented itself in the form of Middleburg Ferro Chrome inviting several manufacturers to provide it with a working solids measurement solution in a difficult application.
Right from the start, the client was impressed with the FMR250. "I never realised that the set-up and calibration would be so quick and easy," said a spokesperson from the mine. "The previous suppliers took the entire day and still the set-up was not complete." Having met and exceeded the client's expectations, Endress+Hauser's solids radar especially impressed in terms of its price/performance ratio.
Micropilot M FMR250 is available in two compact designs: with horn or parabolic antenna. It is intended mainly for use in level measurement in high silos with powdery or lumpy bulk solids, eg, cement, raw meal, fly ash, clinker or animal feed. Dust, filling noise, pressure and temperature layers do not impair the reliability of measured values. In addition, this non-invasive measuring principle is highly suited to measurement in abrasive bulk solids, eg, iron oxide.
The maximum measuring range of Micropilot M FMR250 is 70 m and it can handle applications up to +200°C. Its two-wire technology provides simple and cost-effective wiring. The integrated air purge connection ensures reliable functioning, even in extremely dusty applications - and this without any labour-intensive and expensive retrofitting. The alignment unit provides optimum adjustment to angled surfaces and prevents interfering reflections. Commissioning and operation is handled via the plain language display directly on site or the ToF-Tool/FieldCare operating software from the control room - as simply and fast as is the case with all time-of-flight instruments from Endress+Hauser.
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