What is a differential pressure gauge?
Simple differential pressure gauge consists of a glass -shaped glass tube in which an inert liquid is located. When the two shape arms are subjected to different pressures, the fluids in the appropriate tubes reach different heights. Changing the pressure from one place to another may be determined by the difference in the height of the fluid in two arms. Differential manometers can move from the device simple enough to be built at home after electronic equipment with computer chips and digital readings.
When the holes at the top of the differential manometer are exposed to the same pressure, such as atmospheric pressure, the liquid in the shoulders sits at the same heights. If additional pressure is to measure, such as the air pressure in the diving tank, the air pressure in the tank will push the liquid in the shoulder to which it is attached down while the liquid rises in the opposite arm.
To calculate the pressure difference between atmospheric air and air tank air, the difference between the height of the fluid in each RAM measuredENI. Larger pressure differences are measured by denser fluids such as mercury, while lower pressure differences can be done with less dense fluids such as water.
When the weather speaks of a barometric pressure of so many millimeters (mm) mercury, this may mean that the pressure difference between the interior and the outer side of the storm will push the mercury on the differential pressure gauge. For example, atmospheric pressure, £ 14.7 per square inch (about 101 kPa), pushes the mercury on a tube of 760 mm, while the water would grow 33 feet. The eye of the category five at 13.3 psi (about 93 kPa) moves the mercury by 690 mm, but the water would rise 29.8 feet. The water rises much higher than the heavier mercury in the U -shaped arm, and the simple water manometer would be much greater than that used by mercury. The pressure difference can be measured by multiplying the weight of the fluid column by changing it at a height.
portable differential pressure gauge must afterTake mercury and another point with low frost, high density, indicator fluid. Handheld, digital differential pressureometers have two external valves, each of which can be connected to the pressure source. Digital battery -powered manometers are activated to the subtracting button in a number of different formats. The cables are available to connect portable units to computers to configure results and design messages.