Following a joint program by Rederi AB Transatlantic, Transas AB, and Emerson Process Management to develop an onboard solution for better control of marine fuel consumption, Rederi AB Transatlantic has installed Emerson’s Micro Motion Coriolis mass flowmeters on several ships in its fleet. The standard solution uses a compact Micro Motion F100-Series Coriolis sensor with a Model 1700 transmitter to provide highly accurate, traceable and transparent mass-based measurement of fuel oil. Using the MODBUS communications protocol, the mass flowmeter sends data to a fuel efficiency control system supplied by Transas AB in Sweden. This system, also called a Conning unit, collects information from the flowmeter and other onboard systems to help the crew optimize the operation of the ship.