**Using a pressure measurement instrument to measure fuel level is very common, however most are scaled in bar or psi pressure ranges, and if they do happen to be scaled in level units, they are typically water level based, such as mH2O or ftH2O.**

There are many different grades of liquid fuels which vary in density, plus changes in tank temperature will affect the density of one fuel type. So it is important to carefully consider the pressure range required to ensure that the level being measured never exceeds the operating range of the measurement device.

**Tank level pressure measurement products**

- Generator diesel tank height level sensor for 1 metre height
- 2 metre deep diesel tank level sensor for submersion
- Genset hydrostatic sensor for measuring level of small diesel tank up to 12 inches
- Generator fuel oil day tank drop-in 200mb hydrostatic level sensor

The conditions which will produce the maximum hydrostatic pressure, are the lowest tank temperature and the maximum tank level. If you know the density of the fuel at the lowest tank temperature and the maximum possible fuel height in the tank, then you can calculate the pressure range needed to ensure the instrument will never go over-range.

For an example, let’s say you have a Kerosene fuel tank that is 1,385 mm deep, with a maximum specific gravity of 0.82 corresponding to the lowest tank temperature of 15.6 degC. If you convert this to a hydrostatic pressure, it will come out as 0.1114 bar, 1135.7 mmH2O or 3.726 ftH2O pressure.

**Tank level pressure measurement products**

- Hydrochloric acid storage tank 1mH2Og hydro-static pressure transmitter
- 100 psig range 4-20mA output freshwater hydrostatic pressure transducer for tank level gauging use
- Overground horizontal cylindrical 10ft dia diesel fuel tank level sensor with 10-90% Vs output
- Remote water tank level monitoring via GSM mobile network

## Related Help Guides

- Measuring the volume of liquid in a horizontal cylinder tank
- Determining water tank volume using hydrostatic pressure
- How do you measure the volume of a liquid using pressure

## Related Technical Terms

- cmH2O – Centimetres of Water Column at 4 deg C Pressure Unit
- ftH2O – Feet of Water Column at 4 deg C Pressure Unit
- mH2O – Metres of Water Gauge at 4 deg C Pressure Unit
- mmH2O – Millimetres of Water Column at 4 deg C Pressure Unit
- Specific Gravity

## Related Online Tools

- Pressure to Liquid Level Calculator
- Fluid Depth, Density, Gravity, and Pressure Calculator
- Liquid Level to Hydrostatic Pressure Calculator