Electricity and Control February 2021

SENSORS + SWITCHES : PRODUCTS + SERVICES

Vibration sensors inform preventive maintenance

Volatile global economic conditions and ever tougher regulations are making it increasingly difficult for pulp and paper producers to protect their operating margins. The situation is aggravated by rising energy and raw ma- terials costs, as well as the challenges of meeting health, safety and environmental legislation. As a result, mills are looking for methods of reducing operating costs, one of which is to minimise maintenance activities, while opti- mising plant availability and uptime. Equipment malfunctions in pulp and paper mills can, in most instances, be traced back to poor maintenance. As with any other industry sector, preventing a problem is generally more cost-effective than fixing it afterwards. However, plant shutdowns, even scheduled plant shut- downs, have become increasingly expensive in today’s continuous processes. By installing vibration monitoring equipment, the running time between shutdowns can be extended and the frequency of shutdowns reduced. RC Sensors include a full range of vibration sensors to help industrial producers meet the challenges of mon- itoring and maintaining production machinery, including forming, pressing, drying and finishing systems. The RC range of accelerometers or vibration trans- mitters are designed to suit the many different and chal- lenging conditions found on pulp and paper production

machines, with solutions for online and offline monitoring. The range includes industrial accelerometers for use in tough environments and hazardous areas. In wet areas, the standard ac sensors (RC-100 Series) fitted with integrated silicon cables and sealed to IP68 provide a reliable and effective method of data monitoring. The sensors can be supplied in top- or side- entry form and are fully submersible. For press and dryer sections the ac sensors are available with integrated 2-Pin MS connectors, also with top- or side-entry options, depending on the headroom on the line. The accelerometers are available with a range of cable assemblies, including silicon that is flexible, easy to install in conduit and, when fitted to the accelerometer, provides IP66 sealing. Junction, switch and connection boxes are available in stainless steel, painted mild steel and polycarbonate housings. They can be supplied with a number of differ- ent channels to suit different paper machine applications. R&C Instrumentation supplies and supports the RC range of vibration measurement products. The instruments are manufactured in Europe and conform to European standards in manufacture, quality and reliability. As well as the standard range of RC vibration sensors, ATEX certified intrinsically safe units are available, as is a sensor with 4-20 mA vibration and 10 mV/°C temperature output. Portable instruments, raw data converters and programmable vibration switches complete the range of RC products. For more information contact R&C Instrumentation. Tel: +27 (0)71 471 2056, email: info@randci.co.za Visit: www.randci.co.za rent/voltage), as is already offered by the PS+ and FS+ pressure and flow sensors. The processing units of the TS720 series also detect the type of temperature probe (TC or Pt), thus eliminating a frequent source of errors. If the TS+ is to be integrated into existing installations or is required to replace existing sensors, the selection of dif- ferent IO-Link process data profiles makes it possible to adapt the device quickly, without the need for laborious modifications in the controller. The TS+ sensors are typically used in machine and plant building applications as well as in the process indus- try. Compact TS700 devices operate in a measuring range from -50 to +150°C. Depending on the temperature probe connected, type TS720 processing and display units can cover temperature ranges from as low as -200 to 1 800°C. For more information contact Brandon Topham at Turck Banner. Tel: +27 (0)11 453 2468 Email: brandon.topham@turckbanner.co.za Visit: www.turckbanner.co.za

Vibration sensors reduce shutdowns in pulp and paper mills.

Plug and play temperature sensors

Turck is expanding its innovative range of fluid sen- sors with IO-Link-capable sensors for flexible and reliable process temperature measurement. The sensors are compact devices and are available with an integrated temperature probe (TS700) as well as processing and display units (TS720) for connect- ing resistance thermometers or thermocouples. As part of the fluid sensor series that won the iF Design Award, the TS+ sensors also meet the growing demand for straightforward commissioning and high plant availability. This is supported by the robust stainless steel housing with touch operation instead of mechanical operating elements, plus IP67 and IP69K protection, which makes them suitable for use in harsh industrial environments As well as monitoring process values, the IO-Link interface provides the user with condition monitoring data for smart IIoT applications. To simplify commissioning, the TS+ devices feature automatic detection of the output type (PNP/NPN or cur-

The IO-Link- capable TS+

sensors deliver reliable process temperature measurement and can be used in harsh environments.

22 Electricity + Control FEBRUARY 2021