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What VFD should I use with my pump?

What VFD should I use with my pump?

Here at Marshall Wolf Automation, we receive calls on a daily basis asking which VFD is best suited for a particular pump or fan motor application. While our tech support team is more than happy to help our customers find the right VFD, this simply isn’t a ‘right or...
What is a Centrifugal Pump?

What is a Centrifugal Pump?

I was recently updating descriptions on a new line of soft starters from Carlo Gavazzi (the RSWT series) and came across this sentence: ‘The RSWT Series is a 3-phase pump soft starter, in which all three phases are controlled to achieve current balancing on all...
What is a Proximity Sensor?

What is a Proximity Sensor?

What is a proximity sensor? A proximity sensor is used to detect nearby objects…without touching them. Another way of saying this is ‘non-contact object detection’. How does this happen? Usually a proximity sensor sends out an electromagnetic field or a beam...