The basic manometer is a U-shaped tube that measures pressure by the height of the liquid it will support. ... These systems also feature a microprocessor, as well as outputs for process control and data transfer, which often means that digital manometer tools require regular calibration.

How do you calibrate a manometer?

Connect one end of the manometer to the transducer pressure port (normally the + port). Secure the ruler or tape measure to the surface behind the U-tube. Raise or lower the free end of the tube to increase or decrease the fluid head applied to the sensor.

How often should a manometer be calibrated?

This applies to all gauges in all industries, no matter the application. Many companies, especially in the pharmaceutical, biotechnology, and medical device sectors, do the pressure gauge calibration every three to six months to keep processes optimized and prevent expensive quality control errors.