Small fuel dispenser measurement accuracy analysis:

Small retail fuel dispensers metering accuracy analysis: Small tanker meter is generally performed using a standard profile or verification, by indicating the volume of fluid metered volume indication on the counter, in the standard container is the volume of fluid injection Another volume indication appears, the difference between two values ​​is called meter absolute error of the measured volume, the relative error E its measurement accuracy is: E = (VJ-Vs) / Vs x100% wherein: VJ- metered The oil indicated value on the display panel. The actual volume measured Vs- standard containers indication. Visible small tanker still has his error exists.
From the above equation, E> 0, it means that VJ is greater than Vs, the measurement value that is greater than the standard meter display shows the value of the container, less fat oil tanker to the user. E <0, ie oil tanker multiple users, for two reasons indication error generated more complex, including the systematic errors and random errors. System errors can be compensated by appropriately adjusted. We use the adjusting mechanism adjusts the actual displacement flow meter is in compensation or correction flowmeter system error, in order to improve the accuracy of the meter. Factors affecting the measurement error problem of small tankers also have a lot of. So sometimes can not blindly suspect misconduct gas station.