Pressure transmitters are widely used in the process industry. The advertised accuracy specification of modern pressure transmitters has become more and more accurate.
Often the advertised accuracy specification includes anyhow only part of the truth. It includes only some of the accuracy components effecting the total accuracy that you can expect from the transmitter in practice in your application.
In this blog post, I will examine some popular pressure transmitters’ accuracy specifications and the different accuracy components, such as effect of: re-ranging, ambient temperature, mounting position, static pressure, long term drift, vibration, power supply and more.
I will shortly explain what these components are and what they mean with a few examples.