I Say Duplex, You Say Tandem, Let’s Call The Whole Thing Pumped!

pipes and pumps at a pump stationIf you ask the internet about duplex pumps (What are they? How do they work? Why would or should you use them?), you will get a variety of answers.

Some sound like they are talking about two pumps, usually with a shared source, that may or may not work together. Others sound more like two offset pumping mechanisms in one mechanical unit. That’s two very different concepts to be linked by one name.

So which is it? Are they interchangeable? Does it matter? Let’s take a look.

Changing Response Times

Emergency LightTiming is everything for your sensors. A sensor that is too sluggish to respond to quickly changing levels or pressure won’t alert you to dangerous process conditions until it’s too late. And an overly sensitive sensor sees an emergency in every stray reading or transient condition. Neither sensor is effective, in terms of time or money.

Sensors using sample buffers for signal processing can condition Output Readings using various combinations of four settings: Sample Rate, Averaging, Window, and Out of Range Samples. All four work together to produce an Output Reading customized to your liking. Let’s take a look at them individually, and then look at an admittedly staged example to see their cumulative efforts.