The Short Answer: Pressure In, Current Out Power a two-wire pressure transmitter with 24 VDC and put a milliamp meter in the loop. At zero pressure you will read close to 4 mA; at the top of the confi...

A technician clamps a three-wire Pt100 into an ice bath, connects it to a transmitter, and reads 100.00 ohms. In boiling water, the same sensor reads 138.51 ohms. That shift is the whole story: platin...

A pressure sensor works by converting a physical pressure into an electrical signal. The signal is generated when a diaphragm or another elastic element deflects under pressure, and a sensing element ...

A lift station pump runs dry for twenty seconds and the mechanical seal is gone. A chemical tank overflows for one minute and fumes fill the containment area. Both failures happen daily on industrial ...

A maintenance engineer notices that the flow reading on a cooling-water line no longer matches a temporary clamp-on ultrasonic meter. The first instinct is to question the differential pressure transm...

A P&ID can distinguish a magnetic flow meter from a turbine meter with nothing more than a circle, a short line, and a four-letter tag. That compact symbol carries the operating principle, the sig...