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Coriolis Mass Flowmeters Overview

Coriolis Flow meter Capabilities

Coriolis flow meters rely on the Earth’s coriolis effect to measure fluid mass flow rates. Inside of the Coriolis Flowmeter’s flow-body, flow is diverted into two parallel sensor flow tubes which are vibrated in opposition to one another by energizing a drive coil. The phase shift, which is measured by Hall Effect sensors mounted at the sensor tubes’ inlet and outlets, is caused by the Coriolis Effect and is directly proportional to the mass of the media flowing through the tubes. Thus, the Coriolis Flowmeter is a true Mass Flowmeter. For a more detailed discussion of the principle of operation, please go to:

In addition to providing a direct mass flow reading, the Coriolis Flowmeter offers a number of other advantages. Perhaps the biggest advantage is its’ multi-parameter measurement capability – the Coriolis Meter provides direct mass and volumetric flow rate, process temperature and density readings. It can also provide inferred readings for density dependent parameters such as % water-in-oil, degrees Brix and degrees Baume. Another advantage of the Coriolis Flow is that there is no requirement for pipe straight runs upstream and downstream of the meter.

Smartmeasurement offers Coriolis Mass flowmeters with several unique tube arrangements including U-shaped, Micro bend tube (MB) or Delta Tube (DT) to provide a best fit mass flow meter for our customers’ unique applications.  With this combination of product offerings, pipe diameters from ¼” to 8” and flow rates ranging from as low as 25 kg/hr up to 1,000,000 kg/hr can be accommodated. The unique combination of features and benefits offered by the ALCM family of Coriolis Flowmeters makes it an ideal choice for applications that are found in a variety of industries including Food & Beverage, Petrochem, Oil & Gas, Paint, and Industrial Process Control.

Hover mouse over icon for application notes.

Technology Model/
Gas Flow Liquid Flow Steam Flow Line Size Temperature Pressure Viscosity Accuracy Considerations
Coriolis ALCM Not available at SMC 0.3 ~18K kg/min<br />0.7~40K lb/min Cannot Measure 15mm~200mm<br />½" ~ 8" -50 ~ +200 °C<br />-58F ~392 °F 420 bar<br />6920 PSI < 30 CP ±0.15% of Reading Avoid vibration
Avoid vibration

Coriolis Flow Meters

ALCM - Coriolis Mass Flow Family
Technology Model Diameters Flow Rate Accuracy Pressures Temperature Outputs Approvals Features and Advatages
U tube - Coriolis Meter
ALCM-UT 1¼”~8”
(40-200 mm)
1,500~1,000,000 kg/hr ±0.5% of reading(std),  0.2% or 0.15% (opt) 928 psig
(64 bar)
482 °F
(250 °C)
4-20mA, 0-10 kHz pulse, RS485 NEPSI Exid ⅡB T4;  Exib ⅡC T 4  and CE Best turndown*, higher flows than  ALCMDT similar sizes >2" (50mm)
Micro Bend Coriolis Meter
ALCM-MB ½" to 2"
150~ 50,000Kg/hr ±0.5% of reading(std),  0.2% or 0.15% (opt) 928 psig
(64 bar)
482 °F
(250 °C)
4-20mA, 0-10 kHz pulse, RS485 NEPSI Exid ⅡB T4;  Exib ⅡC T 4  and CE Better Turndown* and lower flows than ALCMDT for similar sizes <2" (50mm)
Delta Tube Coriolis Meter
ALCM-DT ½"-8"
150-900,000 kg/hr ±0.5% of reading(std),  0.2% or 0.15% (opt) 6000 psig
(420 bar)
482 °F
(250 °C)
4-20mA, RS 485, Modbus, HART NEPSI Exid ⅡB T4;  Exib ⅡC T 4  and CE Small size <2" (50mm) higher flows than ALCMMB, lager sizes >2'' (50mm) better lower flow than ALCMUT


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