Precision pressure gauges

A precision manometer is extremely accurate and reliable. It is therefore the ideal gauge for precise measurements. Are you looking for the perfect manometer for your specific application? EMVO Techniek will be delighted to help you out. Do you not know what precision gauge you need? We are happy to give you advice. As a wholesaler, we are specialists in manometers.

If you want to be able to read very precise pressure values, you need a precision gauge. The scale on a precision gauge is much more detailed than scales of other manometers and the display is usually also bigger. They can be used for absolute as well as differential pressure measurement. The class of the instrument indicates how accurate it is. A precision gauge with class 0.6 for example, has a maximum deviation of 0,6% of the total scale value. So if the scale goes up to 10 bars, the maximum deviation will be 0,06 bars.

Bourdon precision gauge

Most precision gauges are based on the Bourdon principle. This technique was invented in the 19th century and is still widely considered as very accurate and reliable. Inside the pressure gauge, there is a little C-shaped, somewhat flattened brass tube. On one end, the measured medium enters the tube. The other end is closed and connected through a mechanism to an indicator on the display.

When pressure on the inside of the tube increases, the tube will lose its flat shape and become or round, which will force the C-form to straighten. This will cause the closed end to start to move, and that movement is enlarged by the mechanism it is connected to. That will result in the indicator to rotate along the scale in the display.