JMW,
I finally went to your website so I now understand why you steer and twist the conversation towards bunkering and HFO. And you seem to have a quite few things wrong so I will keep my reply short with just two points…
(1) Read AP Moller - Maersk articles on bunkering – the biggest marine...
A Micro Motion Elite meter will solve the problem just as Chance17 says. The addition would be to clarify the offering for entrained gas applications. Micro Motion recognized some time ago that low frequency Coriolis meters (around 140-200 Hz) had a large advantage in entrained gas applications...