Most of our sensors can be programmed in the field. This includes setting your minimum (zero) and maximum (span) set points. Let's break it down a little for you:
Ultrasonic sensors are all field programmable. In this process, you'll set your min and max set points as desired. You can redo this process as needed.
Continuous float level transmitters are not field programmable. They leave our facility already calibrated, and this should last the life of the sensor.
Our submersible pressure transducers are even capable of some quick field calibration. You can re-zero the sensor using a magnet.
Digital pressure gauges are also fully programmable. You can set the zero and span on each gauge.
Our pressure transmitters, except for our hammer union pressure transducer, also have a zero and span adjustment.
Calibration is really done for pressure sensors. Our level sensors don't experience drift over time like a pressure sensor will. Send your pressure sensor back in for calibration on a regular basis, at least once per year, to ensure the best accuracy possible.