The digital pressure manometer is a useful tool for a variety of industries and is mainly used to measure the differences between two pressures in a system. When compared to the traditional liquid manometer, digital manometers offer much more convenience in measuring pressure for industries such as the HVAC and aerospace industries, where proper pressure measurement is crucial.
Digital vs. Liquid Manometers
Liquid manometers are U-shaped and work on the concept of fluid displacement. The U-shaped glass tube is partially filled with water or other liquid, depending on the type of pressure being measured, and the gas line is connected to one side of the tube. This allows the gas to add pressure within the tube, which in turn displaces the water.
The pressure is measured based on the height or displacement difference between the two legs of the tube. Due to certain limitations, such as glass tubing, this type of manometer is better suited for laboratory settings.
How Does a Digital Manometer Work?
A digital pressure manometer works on the same concept of measuring the differences in pressure or measuring a single pressure. The many uses for a digital manometer including isolating pressure issues with gas systems, such the propane system in a barbeque grill. This type of meter is also used to troubleshoot heating, ventilation, and pressure issues in the HVAC industry. The digital meter is commonly used for other types of low pressure pneumatic or gas systems as well.
Pressure is measured in pounds per square inch or PSI and the readouts are displayed digitally. Other units that may be included are Pascal (Pa) or millibars (mbar). The manometer operates within certain ranges of temperature, pressure, and materials. Some meters also provide a flow reading and some can provide imperial or metric units. Since this is a micro-processor based instrument, it also has a onboard memory that can link through a single or dual output connector while some can transmit date wirelessly.
Benefits of Using a Digital Manometer
With its streamline design and portable capabilities, a digital pressure manometer is a convenient and accurate way to measure pressure differences. It’s lightweight, and wireless capabilities make it perfect for onsite applications. Many also feature their own power source via an internal battery and feature and easy to read, user-friendly interface that comes in a variety of fonts, legibility, and also backlit options for dimmer work environments.
