Measurement Expert Blog

Deciding whether your float switch needs to be normally open or normally closed for pump control can be a little confusing. So we would like to clear things up.

When we say normally open or normally closed, we are referring to an electrical circuit. An open circuit is incomplete, meaning that the electric current is unable to complete the loop due to a gap. A closed circuit is complete with no gaps, enabling the current to travel through the whole loop. 

APG recently introduced the new API 18.2 MPX Custody Transfer Approved Magnetostrictive Float Level Sensors. We also provided you with a quick synopsis of API 18.2 and its importance for increasing safety and accuracy in crude oil custody transfers from lease storage tanks. In this post, we will tie the two together, showing you how our API 18.2 MPX sensors meet the requirements of API 18.2.

It’s Titanium. It’s bulletproof. Right?

Okay, perhaps our MPI-T isn’t literally bulletproof, but then again neither is Sia. And while the bulletproof metaphor nearly works for APG’s new MPI-T Intrinsically Safe, Titanium Stem Magnetostrictive Float Level Transmitter, perhaps an even better one is that of dodging bullets. There are all sorts of bullets related to crude oil storage just waiting to kill your level measurement systems, but the MPI-T can help you dodge those bullets.

What is API 18.2? What does “Custody Transfer of Crude Oil From Lease Tanks Using Alternative Measurement Methods” even mean? Why does it matter? Does anyone actually benefit? Who cares?