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Micro Motion FDM Fork Density Meter
Northeast Controls is pleased to be the authorized Emerson representative to sell this product line for Municipal Water and Wastewater applications, and as part of an overall Integrated Solution for all applications and industries.
A direct-insertion Fork Density Meter, that offers installation flexibility with continuous, real-time density and concentration measurement in pipelines, bypass loops and tanks.

Fork Density Meter Overview

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Micro Motion FDM Fork Density Meter


Density accuracy
±1,0 kg/m3(±0,001 g/cm3)
Operating density range
0-3000 kg/m3(0-3 g/cm3)
Operating temperature range – short stem
–50 °C a +200 °C (–58 °F a +392 °F)
Operating temperature range – long stem
–40 °C a +150 °C (–40 °F a +302 °F)
Wetted parts – short-stem meter:
304 or 316L stainless steel, Alloy C22, Titanium, or Zirconium

Wetted parts – long-stem meter:
Alloy C22 for stem lengths up to 2 m (6.5 ft) long
316L stainless steel for meters up to 4 m (13 ft) long

Tine finish:
Standard, DLC (Diamond-Like Carbon) coated, or electro-polished

Transmitter housing:
Polyurethane-painted aluminum or 316L stainless steel
Local display (optional)
Segmented two-line LCD screen.
Can be rotated on transmitter, in 90-degree increments, for ease of viewing
Suitable for hazardous area operation.
Optical switch controls for hazardous area configuration and display.
Glass lens.
Three-color LED indicates meter and alert status.
Display functions
View process variables.
View and acknowledge alerts.
Configure mA and RS-485 outputs.
Supports Known Density Verification (KDV).
Supports multiple languages.
Transmitter output channels
Available output channels (depending on the Electronics Interface option):
One or two externally powered (passive) 4–20 mA outputs
Channel A is 4–20 mA + HART
Channel B is 4–20 mA
One externally powered (passive) Time Period Signal (TPS)output
One externally powered (passive) Discrete output
One Modbus/RS-485 output Can also be ordered with a processor for use with a remote-mount 2700 FOUNDATION fieldbus transmitter
Meter approvals, calibrations, and certifications
Agencies & types of approval available:


  • Increase installation flexibility with continuous, real-time measurement in pipelines, bypass loops and tanks
  • Choose from a wide range of corrosion-resistant materials for measuring density and concentration of critical chemicals
  • Ensure friction reduction and improve coating immunity with Diamond-like Carbon (DLC) coating
  • Accelerate verification of meter health and installation with internal diagnostics
  • Support multiple simultaneous protocols for connection to DCS, PLC and flow computers
  • Expand usage with a hazardous area-approved, head-mounted transmitter that supports local configuration and display
  • Interact with our detailed schematic tool to learn more about our Dedicated Density and Viscosity Meters