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Micro Motion FVM Fork Viscosity Meter
A high performance, multivariable Fork Viscosity Meter that delivers reliable viscosity, density and temperature measurement in pipelines, bypass loops and tanks.
Micro Motion FVM Fork Viscosity Meter


Viscosity accuracy
±0.2 cP (0.5 –10 cP range) then ±1% full scale of the following ranges:
0.5 to 10 cP
10 to 100 cP
100 to 1000 cP
Operating viscosity range
0.5 to 20,000 cP
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 to +200 °C (–58 °F to +392 °F)
Operating temperature range – long stem
–40 °C to +150 °C (–40 °F to +302 °F)
Wetted parts:
316L stainless steel

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:


  • Receive reliable and continuous multivariable measurement of viscosity, density and temperature
  • Easily insert directly into pipelines, bypass loops and tanks
  • Expand usage with a hazardous area-approved, head-mounted transmitter that supports local configuration and display
  • Quickly verify meter health and status using advanced internal diagnostics
  • Support multiple simultaneous protocols for connection to DCS, PLC and flow computers
  • Interact with our detailed schematic tool to learn more about our Dedicated Density and Viscosity Meters