How to choose a digital pressure gauge?

Manometers are used everywhere it is necessary to know, control, and regulate pressure. They are most commonly used in heat power engineering, utilities, food industry enterprises, chemical and petrochemical plants.

A manometer combines the functions of measuring and indicating instruments at the point of its installation. One manometer can be used to measure pressure in different media (liquid, steam, gas) provided its elements are resistant to these media. The standard design of KELLER digital manometers assumes stainless steel 316L in contact with the medium. If the manufacturer imposes any restrictions on the manometer or, conversely, expands the scope and conditions of operation, special symbols are applied to the device to inform about the application features. For example, on KELLER digital manometers, the manufacturer applies the "Ei" mark, which indicates the possibility of use under special requirements in explosive conditions. When choosing a manometer, attention should be paid to the dial diameter, the pressure measurement range, and its accuracy class. The lower the number, the more accurate the instrument.

KELLER manometers are produced with a wide range of accuracy classes: from 0.5% FSO to 0.025% FSO. In any case, the choice of a particular manometer depends on the measurement tasks.
Mostly, KELLER manometers are autonomous devices powered by a lithium battery. All KELLER manometers have the function of remembering Maximum and Minimum values and are easily operated with two buttons. Below is a comparative table of KELLER digital manometers' specifications. Detailed specifications can be found in the "Products – Digital Manometers" section.