Product Specifications
Manufacturer:Micro Motion
Product Type:Fork Density Meter
Part Number:FDM Series
Density Range:0 to 3.0 g/cm³ (3000 kg/m³)
Density Accuracy:±0.001 g/cm³ (±1 kg/m³)
Temperature Sensor:100Ω RTD integral
Process Temperature:Up to 200°C (392°F)
Ambient Temperature:-40 to 65°C (-40 to 149°F)
Humidity Limit:95% RH, non-condensing at 60°C
Output Variables:Density, temperature, drive gain; derived variables including °Brix, °API, %Solids, %Mass, and user-defined calculations
Display:Optional two-line LCD, rotatable 90°, optical switches, three-color LED status
Certifications:Conforms to EMC standards, EN 61326
Documents: Product Manual, Product Specs
Product Description
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
Resources & Documentation
Fork Density Meter - 0-3 g/cm³, ±0.001 g/cm³ | Micro Motion FDM
Product Specifications
Manufacturer:Micro Motion
Product Type:Fork Density Meter
Part Number:FDM Series
Density Range:0 to 3.0 g/cm³ (3000 kg/m³)
Density Accuracy:±0.001 g/cm³ (±1 kg/m³)
Temperature Sensor:100Ω RTD integral
Process Temperature:Up to 200°C (392°F)
Ambient Temperature:-40 to 65°C (-40 to 149°F)
Humidity Limit:95% RH, non-condensing at 60°C
Output Variables:Density, temperature, drive gain; derived variables including °Brix, °API, %Solids, %Mass, and user-defined calculations
Display:Optional two-line LCD, rotatable 90°, optical switches, three-color LED status
Certifications:Conforms to EMC standards, EN 61326
Documents: Product Manual, Product Specs