YOKOGAWA ROTAMASS Nano Coriolis Mass Flowmeter

When Every Drop Counts

Introducing the world’s most compact dual bent tube Coriolis Mass Flow and Density Meters series, offering exceptional accuracy for measuring the lowest flow rates.

The dual tube design effectively compensates for fluctuations in density, temperature, pressure, and environmental conditions. This ensures consistent, repeatable, and highly accurate measurements, particularly for small-sized Coriolis Mass Flow and Density Meters.

• Typical Applications
  • Batching
  • Dosing
  • Blending
  • Chemical injection
  • Dosing systems
  • High-pressure gases
  • Liquid and gas low flow measurement
  • Precision coatings
  • Metering pump control
  • Metrology
  • R&D laboratory
  • Vacuum thin film coating
    

    Specification & Function

    Refer to the General Specification sheet located under the ‘Downloads’ tab for detailed specifications.

    Product Line			Rotamass Nano		Rotamass Prime	Rotamass Hygienic	Rotamass Supreme	Rotamass Intense	Rotamass Giga
    Flow Range
    Liquid process fluids
    Liquids in general			●		●	●	●	●	●
    Aggressive liquids			○		–	–	●	●	○
    High viscous fluids			○		●	●	○	○	○
    Gaseous process fluids
    Gases in general			○		●	○	○	○	●
    Low density gases			○		●	●	○	○	○
    Mixed process fluids
    Unmixable or mixable liquids			●		●	●	●	●	●
    Liquids with entrained gas			●		●	●	●	●	○
    Process conditions
    Process temperature			-50 to +260 °C -58 to +500 °F		-70 to +200 °C -94 to +392 °F	-70 to +140 °C -94 to +284 °F	-196 to +350 °C -321 to +662 °F	-70 to +150 °C -94 to +302 °F	-70 to +350 C or +200 C (Giga 2F) -94 to +662 F or +392 F (Giga 2F)
    Process pressure up to			285 bar or 460 bar?*1 4183 psi or 6672 psi?*1		100 bar 1450 psi	40 bar 580 psi	100 bar or 250 bar?*1 1450 psi or 3626 psi?*1	up to 700 bar 10000 psi	100 bar or 180 bar?*1 1450 psi or 2610 psi?*1
    Line sizes			DN15 to DN40 1/4 in. to 1 1/2 in.		DN15 to DN125 3/8 in. to 5 in.	DN25 to DN80 1 in. to 3 in.	DN15 to DN125 3/8 in. to 5 in.	9/16 or 3/4“in. AutoClave 1/4 in. to 2 in.	DN100 to DN250 4 in. to 10 in.
    Accuracy
    Mass flow for liquids up to			± 0.1 %		± 0.1 %	± 0.1 %	± 0.1 %	± 0.1 %	± 0.1 %
    Mass flow for gas up to			± 0.50 %		± 0.35 %	± 0.35 %	± 0.35 %	± 0.50 %	± 0.35 %
    Density for liquids up to			± 0.5 g/l		± 0.5 g/l	± 0.5 g/l	± 0.5 g/l	± 0.5 g/l	± 2.0 g/l
    Turndown flat accuracy			○		●	●	○	○	–
    Materials and process connections
    Material of wetted parts			Alloy C-22/2.4602 & 316L/1.4404		316L/1.4404	316L/1.4404	316L/1.4404 or alloy C-22/2.4602 or 304/1.4301?*1	316L/1.4404 or alloy C-22/2.4602 or 304/1.4301*1	316L/1.4404 or alloy C-22/2.4602 (Giga 1F only)
    Flange process connections			EN, ASME, JPI, JIS		EN, ASME, JPI, JIS	?	EN, ASME, JPI, JIS	ASME	EN, ASME, JIS
    Threaded process connections			G, NPT		G, NPT	DIN11851, SMS1145	G, NPT	G, NPT	?
    Clamp process connections			DIN32676		?	DIN32676, JIS/ISO2852	DIN32676, JIS/ISO2852	?	?
    Sensor design
    Insulation and heat tracing options			●		–	–	●	–	●
    Rupture disk			○?*1		–	–	●	●	●
    Customer & NAMUR face-to-face length			●		●	–	●	–	○
    Approvals / Certificates
    3-A, EHEDG, EC1935:04 and EC2023:06			–		–	●	●	–	–
    Marine application			●		●	●	●	●	○
    Functional Safety			SIL 2 (SIL3)
    Custody transfer application			NTEP (Nano 20)		NTEP	NTEP	NTEP, INMETRO	NTEP	NTEP, INMETRO
    Hazardous area approvals			IECEx, ATEX, UKEx, FM (USA/Canada), NEPSI, INMETRO, PESO, EAC Ex, Taiwan Safety Label, Korea Ex, Japan Ex, ECAS Ex, Ukraine Ex

    ●: supported????○: supported under certain conditions????-: not supported????*1: available on demand