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Applications requiring a constantly monitored flow of cooling or cleaning water now have the perfect solution with the launch of the new PF3W Digital Flow Switch Series from the world leaders in pneumatics - SMC.Developed following the success of SMC's PF2W flow switch range, their R&D engineers have now taken these flow switches to a new level by improving both their design and operating performance. Depending on the selected model, the new Series PF3W is now up to 40% smaller in volume than the previous range thereby offering improved piping space and flexibility. Designed to work with fluids up to 90ºC, these switches incorporate an in-built temperature sensor so that both flow and fluid temperature can be effectively monitored at the same time. According to SMC engineers, pressure losses have also been reduced when compared to the previous range and the new PF3W can also be used with ethylene glycol operating fluid making these switches ideal for use in chiller type applications.Further improvements include the addition of two screens incorporating three colour numerical displays which can also be rotated in both clockwise and anti-clockwise directions thereby offering even better display visibility during operation.Available as non grease type and with analogue output if required, the new Series PF3W range meets IP 65 enclosure protection standards and are both RoHS and CE compliant.
During the past few years it's generally been accepted that analogue float type flow meters cannot always provide an accurate indication of performance when used in low flow rate applications. But now, thanks to R&D engineers from SMC, the world's leading automation experts and their new Series PFM Digital Flow Switch using MEMS technology, this simply isn't the case.Developed initially to detect microchip component adsorption in vacuum and early clogging in both filter and nozzle applications, the new Series PFM Flow Switch is incredibly compact and lightweight compared to existing flow sensors thanks to its micro electro mechanical system (MEMS) sensor. With its unique integrated flow adjustment valve, which can be added or disconnected by simply removing its retaining clip, linear flow rate can be adjusted manually by rotating the flow rate adjustment knob. Further features of the PFM are the dual colour digital display which indicates any performance irregularities at a glance and due to its MEMS sensor both straight or elbow piping options are possible making this the perfect flow switch when space limitations are an issue.Currently the PFM range is available in four maximum flow rate options 10, 25, 50 and 100 l/min and is suitable for use with air, nitrogen, argon or carbon dioxide.
SMC offers a variety of digital flow switches. Series PF2A for air, PF2W for water, PF2D for deionized water and chemicals. Flow rate setting and monitoring are possible with the digital display. Integrated and remote type displays are available for different types of application. Water resistant construction is used conforming to IP65 protection. Switching from real-time flow rate to accumulated flow is possible.
Answering the demands for a pressure sensor that would send an output over a wide range where most pressure sensors could not send a signal when adsorbing minute work pieces, SMC has designed the PFMV5 series. The PFMV5 is a small flow sensor with a rapid response time of less than 5ms. The PFMV5 series is mountable in a space-saving location since the straight piping length is not required. The PFMV3 voltage monitor for the PFMV5 series can cover a full range of sensors (6 ranges). The sensor connector offers easy connection and removal of wiring. The dual color display (red and green)allows for visual confirmation of the current condition.
The paddle style flow switch, series IF3 detects and confirms liquid flow. The series is generally used in fields such as air conditioning, water supply equipment, etc. Enclosures include a standard type for indoor applications away from moisture; drip proof (JIS C0920) which can tolerate water drip in indoor or outdoor applications; and splash proof (JIS C0920) which has a sealed construction that can tolerate hosing or salt laden atmospheres.
IFW series flow switches detect and confirm liquid flow. They are applicable to general industrial machines and various other applications. The IFW series will detect the flow of water and other non-corrosive fluids. The detection range is from 1 to 50 liters per minute. The flow setting can be adjusted with a screwdriver from the outside of the unit without removing the cover.
