What is a pressure sensor?
There are two types of pressure sensors: gauge and differential pressure sensors. They are reliable, cost effective instruments to measure the hydrostatic level of liquids, such as water or fuel, in vented or sealed tanks. For a vented tank, the pressure transmitter should be mounted to the bottom. Typically, the transmitter will be threaded into the outlet line of the tank, a side bung, or flange.

Tank Specifications:
First we need to know the specifications of the tank:
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Maximum width: 600mm
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Minimum velocity: 0.3m/s
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Maximum velocity: 1.5m/s
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Transmission range of controller: 50m
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The important thing that our calculations will be based on is the controller transmission range: 50m.
What type of pressure sensor should I use?
Well, that depends on the tank specifications, here we are given 50m transmission range, so we are going to use a maximum height of 50m.
Pressure equation is given by:

Where:




Substituting the values we get:
Note that the pressure is in pascals. We need to convert that to psi unit

In order to do that, we divide pascals over psi and we get:

Finally, from the following table, we can choose the appropriate sensor from the "Pressure Range psi".
The closest value for 71.1 psi is 100 psi.
So, the appropriate pressure sensor is: 24PCF Type.

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To make things simple, This calculator is generated to calculate pressure for any given input.