Emerson Micro Motion Heavy Fuel Viscosity Meter (HFVM) Viscomaster

The Micro Motion Heavy Fuel Viscosity Meter (HFVM) Viscomaster by Emerson is the next generation of direct insertion viscosity and density meters.

The device is designed to help solve issues such as maximising engine power output regardless of fuel quality variations, optimising heavy fuel oil (HFO)/marine gas oil (MGO) cut-over times and reducing fiscal exposure through improved NOx/SOx management.

Using the same tuning fork design as its predecessors, like the Micro Motion 7829 Viscomaster, the device also incorporates a robust, low-friction, diamond-like carbon (DLC) coating that is suitable for tackling process applications such as marine HFO combustion control, MGO, viscosity control and land-based fired heaters.

The head-mounted transmitter is also hazardous-area approved and can connect to control systems via various digital and analog protocols.

Support from 4-20 mA, HART, Wireless HART and RS485 Modbus communications ensures system integration and start-up commissioning costs are reduced, while the meter also accepts and processes external signals from other field instrumentation such as temperature and mass/volumetric flow devices. This means the meter can calculate and output enhanced process measurements while also minimising installation and cabling costs.

The device features Known Density Verification (KDV), a diagnostic capability that checks the meter for measurement alarm conditions, sensor integrity and the presence of coating, erosion or corrosion. This technology expands the availability of diagnostic information in critical viscosity and density measurement applications, which can result in maintenance costs and cycle time reductions.

Marine approvals for the meter include Lloyds, Germanischer Lloyd’s, Det Norske Veritas (DNV) and Bureau Veritas (BV).