The Micro Motion FDM fork density meter features vibrating tines driven by piezoelectric crystals and an integral temperature sensor. A head-mounted transmitter supports local configuration and optional display for multi-variable I/O, meter health, and application capabilities.

Standard process measurements include density, temperature (including external temperature when an external device is connected), and drive gain. A comprehensive range of derived output variables is available depending on application configuration, including referred density (concentration), referred density via API tables 53A/53B, specific gravity (concentration), %Alcohol, Alcohol proof, °API, °Balling, °Baume, °Brix, °Plato, %Mass, %Solids, °Twaddle, and user-defined calculation output.

When an external device is connected, additional derived variables become available: mass flow, net solids flow, enhanced concentration accuracy, referred density with live pressure input, and tank mass. Integral HART I/O allows direct input of external temperature, pressure, and flow measurements for enhanced calculations.

The optional local display is a segmented two-line LCD that can be rotated in 90-degree increments for ease of viewing. Optical switch controls enable hazardous area configuration and display operation. A three-color LED indicates meter and alert status. Display functions include viewing process variables, viewing and acknowledging alerts, configuring mA and RS-485 outputs, and supporting Known Density Verification (KDV).

Key Features

• Vibrating element liquid density meter
• Density range: 0 to 3.0 g/cm³ (3000 kg/m³)
• Density accuracy: ±0.001 g/cm³ (±1 kg/m³)
• Integral 100Ω RTD temperature sensor
• Process temperature up to 200°C (392°F)
• Ambient temperature: -40 to 65°C (-40 to 149°F)
• 95% RH, non-condensing at 60°C humidity limit
• Wide range of derived concentration variables
• Optional rotatable LCD display with optical switches
• HART I/O for external device integration
• EMC compliant to EN 61326

Applications

• Chemical and petrochemical processing
• Food and beverage concentration monitoring
• Alcohol and distillation measurement
• API gravity measurement in hydrocarbons
• Solids concentration in slurries
• Process control and quality assurance