There is a defined process for everything in this world, be it human body or any other machinery or device. It is pertinent for an engineer to understand the complete flow of a machine, in order to understand the mechanism of any electrical device. Usually when we think of engineering, intentionally or unintentionally we get a thinking of refrigerators, huge looms, machines, cranes and other man made machinery includes everything or anything. Similarly there are some devices which have been created by ancestors or ours, to keep a strict check on overall machines. Precisely, checks and balances are required to understand and keep the machine on track, which brings us to the topic of differential gauges; a device which is used to monitor the pressure. Initially there were some parameters which were not considered to be measured in numbers for instance: pressure, heat, force and other abstracts like before mentioned. Differential gauge works as an indicator to catch, monitor and elaborate the gap among pressure points, normally only two pressure points are considered for the measurement of pressure but overall it elaborates the pressure picture between more than two points as well.

**Why it is important to measure the differential pressure?**

In layman terms everything beyond limit could create detrimental effects on surroundings. There are numerous manufacturing plants working day and night to produce different stuff, hence there must be something these plants are releasing in the air. Unfortunately, this released stuff causes harm to the society hence significance of a differential gauge and other stuff can be understood. For instance: According to the WHO there are some specific manufacturing companies such as: Pharmaceuticals; which are required to stabilize the range of differential pressure more than 11 pascals during the production area and the general surrounding pressure. As a result the prevention of cross contamination becomes easier and surroundings are saved. Check this link https://www.floydinstruments.com.au/digital_test_equipment.html to find out more details.

**Formula to calculate the differential pressure…**

Most of us don’t have the basic knowledge of engineering hence it is almost impossible to understand the technicalities involved, as a result it is important to understand technical stuff in a simplified way. There is a formula behind every machinery and mechanism which is first formulized on a piece of paper and later on becomes a physical thing to handle. To make this concept a bit simpler for the reader here is an example:

Differential pressure = pressure at dot X – pressure at dot Y

To further elaborate let’s deal with some numbers; suppose pressure at dot X is 70 psi and the other pressure dot which is ‘Y’ producing 30 psi. So the differential pressure would be:

Differential pressure = 70 – 30 =40 psi. (Which would be considered as a differential pressure)

To understand the complete concept one must memorize the aforementioned example and calculate the differential pressure manually. In order to completely understand the differential gauge concept just remove your brain and place a meter (gauge) calculating the same difference; that is differential pressure gauges Australia.