language
Contact Us

How do We Select Suitable Pressure Gauges?

When selecting a pressure gauge, you need to consider the type, range, accuracy, sensitivity, dimension, remote transmission function and other functions such as indication, recording, adjustment and alarm.

LASON, a top pressure gauges supplier from china, will give you the detailed selection guides for you!


Main basis for pressure gauge selection:


1. Requirements for measurement in process production, including measuring range and accuracy

In the case of static test (or slow change), the maximum of the measured pressure is specified to be two-thirds of the full scale of the pressure gauge. In case of pulsating (fluctuating) pressure, the maximum of the measured pressure should be one half of the full scale of the pressure gauge.

The accuracy grades of commonly used pressure gauges are 0.05, 0.1, 0.25, 0.4, 1.0, 1.5 and 2.5. You should choose from the accuracy requirements for production process and the best economy. The maximum allowable error of the pressure gauge is the product of the range of the pressure gauge and the percentage of accuracy grade. If the error exceeds the accuracy required by the process, replace the pressure gauge with better accuracy.


2. The properties of the measured medium

When choosing a pressure gauge, you need to consider the properties of the measured medium, such as the state (gas, liquid), temperature, viscosity, corrosiveness, degree of oil contamination, flammability and explosiveness, etc. Oxygen meter, acetylene meter, etc. are not suitable for oily environments. Corrosion resistant pressure gauge, high temperature resistant pressure gauge, diaphragm pressure gauge, etc. are suitable for special medium.


3. Environmental conditions during use

Consider the temperature, corrosion, vibration, humidity, etc. For example, shockproof pressure gauges are suitable for vibration environments.


4. Staff observation

Choose different types of mechanical pressure gauges with different gauge diameters (outer dimensions) according to the locations of the pressure gauges and the lighting conditions of the locations.

Related Article for Reference

How to Calibrate the SF6 Gas Density Relay? Why Is Regular Calibration Necessary?
How to Verify SF6 Gas Density Relays?Since SF6 gas density relays are typically installed alongside switches in the field and are not easy to disassemble, as frequent disassembly can lead to interface...
Thu 09 2023
SF6 Density Calibration and Automatic Inflation and Deflation Device
Ⅰ. Introduction of SF6 density calibration and automatic inflation and deflation deviceSF6 density calibration and automatic inflation and deflation device is mainly composed of standard calibration ...
Mon 01 2023
SF6 Relay Tester: a Tool to Improve Power Testing Efficiency
SF6 Gas Relay Calibrator plays a key role in the power industry, providing power workers with a more convenient means of power testing. Behind this tool lies advanced technical features that provide e...
Tue 04 2024
Lanso Instruments INC.
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com