Sitrans Mass 2100 DI 3 to DI 40 Flowmeter

  • High Accuracy Better than 0.1% of mass flow rate
  • Versatile Suitable for a variety of liquid and gas measurement applications
  • Superior Performance Superior performance in terms of of flow accuracy, turn-down range and density accuracy
  • Suitable for Hazardous Areas Intrinsically safe Ex-design ia IIC as standard
Product Options


The Sitrans MASS 2100 DI 3 to DI 40 is a coliolis mass flowmeter suitable for accurate measurement of a variety of liquids and gases. Coriolis flow measurement is independent of changes in process conditions/parameters such as temperature, density, pressure, viscosity, conductivity and flow profile. Due to this versatility the meter is easy to install and the coriolis flowmeter is recognized for its high accuracy in a wide turndown range which is paramount in many applications.

The MASS 2100 DI 3 to DI 40 flow meter offers superior performance in terms of flow accuracy, turn-down range and density accuracy. Installation is simple via a "plug & play" mechanical and electrical interface, ensuring optimum performance. The sensor delivers true multi-parameter measurements i.e.: Mass flow, volume flow, density, temperature and fraction.


The MASS 2100 coriolis flowmeter consists of a single bent tube in a double bent pipe configuration, welded directly to the process connectors at each end. The sensor is available in 2 material configurations, AISI 316L or Hastelloy C22 with a wide variety of process connections. The enclosure is made in stainless steel AISI 316L W 1.4404 with a grade of encapsulation of IP66/NEMA 4. The centre-block is brazed onto the sensor pipes from the outside which acts as a mechanical low pass filter.

The mass flowmeter is as standard EEx ia approved, intrinsically safe, and can be installed in either a horizontal or vertical position. In a horizontal position the mass meter is self draining.

Heating Jacket

All the sensors MASS 2100, DI 3 to DI 40, can optionally be equipped with a heating coil in order to prevent solidification of sensitive fluids during down-time or periods between discontinuing processes. This provides an alternative to the costly electrical heating normally used, as it gives the freedom to choose either hot water, superheated steam or hot oil, to maintain a constant temperature inside the sensor.


  • High accuracy better than 0.1% of mass flow rate
  • Large dynamic turn-down range better than 500:1
  • Single continuous tube design, with no internal welds, reductions or flow splitters offers optimal hygiene, safety and CIP cleanability for food & beverage and pharmaceutical applications
  • MarketsÃ???Ã??Ã?¢?? biggest wall thickness, ensuring optimal life-time and corrosion resistance and high-pressure durability
  • Densitometer performance available through a density accuracy better than 0.0005 g/cm3 with a repeatability better than 0.0001 g/cm3
  • Full bore design provides lower pressure loss due to same internal
    diameter throughout the entire sensor.
  • Balanced pipe design with little mechanical energy loss, ensures optimal performance and stability under non-ideal and unstable process conditions (pressure, temperature, density changes etc.)
  • 4-wire Pt1000 temperature measurement ensures optimum accuracy on mass flow, density and fraction flow
  • Multi-plug electrical connector & SENSORPROM enables true "plug & play". Installation and commissioning in less than 10 min.
  • Intrinsically safe Ex-design ia IIC as standard, making service in hazardous area possible without having to demount the sensor if a compact Ex d transmitter needs service
  • Sensor pipe available in high-quality AISI 316L stainless steel W 1.4435 or Hastelloy C22 W 2.4602 offering optimum corrosion resistance
  • Centre-block design decouples process noise from the environment such as vibrations, pulsations, pressure shocks etc. making installation flexible and versatile
  • Rugged and space-saving sensor design in stainless steel matching all environments
  • Uniform sensor interface matching all transmitter versions at the same time whether it is compact IP67/NEMA 4X, compact Ex d or remote installation, one sensor fits all
  • High-pressure program as standard
  • Sensor calibration factor is also valid for gas measurement

Manufactured by: Siemens-Milltronics
Model: Sitrans Mass 2100 DI 3 to DI 40 Flowmeter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Dosing within chemical industry
Food and beverage industry
Automotive industry (engine testing rigs)


Measuring Range From 0 to 52000 kg/h (0 to 114,600 lb/h)
Nominal Size From DI 3 to DI 40 (1/8" to 1½")
Accuracy 0.1 % of rate
Nominal Pressure Max 410 bar (Max 5946 psi)
Medium Temperature From -50 to 180 °C (-58 to 356 °F )
Sensor Design One tube bended
Enclosure IP65 (NEMA 4)
Approvals ATEX EEx (ia) IIC T3-T6


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