trykkfaldsmålere

Trykkfallsmålere, often translated as differential pressure gauges, are instruments used to measure the difference in pressure between two points in a system. This difference, or pressure drop, can provide valuable information about the state of the system being monitored.

Common applications for trykkfallsmålere include monitoring the blockage of filters, such as air or oil filters. As a filter becomes clogged, the resistance to flow increases, leading to a higher pressure drop across it. A trykkfallsmåler can indicate this condition by showing an increasing pressure difference. They are also used to measure flow rates in pipes. By placing a restriction, like an orifice plate or a Venturi tube, in a pipe, a pressure drop is created that is proportional to the flow velocity. The trykkfallsmåler quantifies this drop, allowing for flow rate calculations.

Other uses include monitoring the level of liquid in tanks. By measuring the hydrostatic pressure at the bottom of a tank, and comparing it to atmospheric pressure at the top, the liquid level can be determined. In HVAC systems, trykkfallsmålere are used to monitor fan performance and duct static pressure.

Trykkfallsmålere come in various types, including mechanical gauges with diaphragms or bellows, and electronic sensors that use strain gauges or other sensing technologies. The choice of trykkfallsmåler depends on the specific application, required accuracy, pressure range, and environmental conditions.