There are two main types of pressure gauges, the digital pressure gauge and the mechanical pressure gauge. When choosing an instrument, careful consideration should be taken when selecting the best deice for your application. Here, MGA Controls looks at the different types of pressure gauges and common applications of a digital pressure gauge.

The uses of a mechanical gauge

Mechanical pressure gauges, sometimes known as analogue gauges, are the most common type of pressure gauge. The Bourdon tube is the most common type of mechanical gauge, working on the principle of a curved tube straightening when under pressure.
Mechanical gauges are the most common type, providing reliably accurate results. Bourdon tubes offer superior linearity and can be accurate up to ±0.1%, making them suitable for precision measurements.

Application of a digital pressure gauge

The sensors and microprocessors in a digital pressure gauge are used to display highly accurate pressure readings. Analogue and digital pressure gauges are extremely similar, with the main difference being the way they display results. While an analogue gauge uses a pointer, a digital pressure gauge will display results through a numerical, digital reading, providing resolutions up to 0.01 or 0.001. This makes them the ideal option for very low pressures or small incremental pressure changes.
Common applications which utilise the digital pressure gauge include:

  • Oil and Gas industry
  • Maintenance and service facilities
  • Calibration service companies and service industry

Digital pressure gauges for gas

EEx gauges are suitable for use with potentially flammable applications, including gases and liquids. EEx certified gauges have been approved to the European ATEX regulatory standard, limiting excessive heat to prevent the ignition of a volatile gas or liquid.

MGA Controls have a wide range of pressure gauges available. To find out more information about our available products, please contact our technical team today on 01704 898980 or alternatively email