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Liquid flowmeter RS-2M

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Liquid flowmeter RS-2M is used for measurement of instantaneous liquid flow rate, calculating the accumulated liquid volume and keeping consumption archives.


Flowmeters are used for:

  • measurement of instantaneous liquid flow rate;
  • calculating the accumulated liquid volume;
  • keeping consumption archives.

Measurement method:

The physical principle of measurement is based on the electromagnetic induction phenomenon, in accordance with which, during motion of electroconductive liquid in the magnetic field, generated by excitation coils of the primary speed transducer, an electromotive force (EMF) is induced in it, which is proportional to the average speed of liquid motion. The output signal of the primary transducer comes to the computing unit where all the measured quantities are calculated.

This method has a number of advantages as compared to the conventional flowmeters of the turbine, impeller and other types:

  • Sensitivity to small liquid flow rates-the turbine, impeller or another mechanism usually do not rotate at small liquid flow rates;
  • Absence of moving parts in the flow-no friction, wear, and, as a consequence, deterioration of the flowmeter's metrological performance, enhancement of reliability;
  • Classical flowmeters create resistance to the liquid motion, while the probe does not affect the flow at all;
  • The flowmeter is insensitive to contamination in liquid;
  • Easy mounting without shut-off of the mainline;
  • Perfectly suited for pipelines of larger diameter up to 1,700 mm.


  • Calculating the current liquid flow rate;
  • Calculating the accumulated liquid volume;
  • Keeping archives of measured quantities;
  • Data transmission via a GSM-telemetry channel.

Field of application:

  • Utility and household and industrial metering of water at the consumer's side: residential apartment buildings, industrial facilities;
  • Industrial metering of water at the supplier's side: distribution and pumping station, water intake facilities, hydroelectric stations, etc.;
  • Metering of technological non-aggressive electroconductive liquids: chemical, food, light industry;
  • Metering in non-metallic thick-walled water pipelines, incl. pressure pipelines of hydroelectric stations;
  • Liquid metering in non-round pipelines;
  • Metering of contaminated liquids.

Design features:

  • The remote flow measurement cabinet allows monitoring the readings and controlling the flowmeter from a convenient place (duty personnel's room, control room);
  • The flow measurement cabinet keeps measurement archives;
  • A port for computer connection;
  • The cabinet can be equipped with GSM-telemetry;
  • A connector for an emergency power supply source;
  • Upon customer's requests, instruments are completed with a calibrated straight section with counter flanges;
  • The implemented dust and moisture protection degree for the primary transducer is IP 67, ensuring full protection from dust, condensate and flooding.


Spark protection:

  • Spark protection barrier;
  • Without spark protection barrier.

Electrical power supply:

  • 220 V;
  • Emergency power supply source;
  • Fully non-volatile computer with its own power supply source.


  • Integrated GSM-module;
  • Without integrated GSM-module.


  • Probe;
  • With a calibrated straight section.
You can order the liquid flowmeter rs-2m from  dealers  at a good price.

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Characteristic Value

Range of measurements of volumetric liquid flow rate, m3/h

from 0.1 to 40,856

Limits of permissible relative error during flow rate measurement, %, in the range of liquid flow rate speeds (V, m/s):
- 0.015 ≤V ≤ 0.1
- 0.1 ≤V ≤ 5


Range of electroconductive liquid temperatures, °С

from 0 to 150

Permissible daily values of clock rate, s


Maximum pipeline overpressure, MPa


Pipeline nominal bore diameter, mm:

from 50 to 1,700

Power supply parameters:
AC voltage, V
frequency, Hz



Flowmeter weight, kg, not more than:


Overall dimensions of primary transducers, mm, not more than:


Overall dimensions of flow measurement cabinet, mm, not more than:


Average service life, years, at least:


Average mean time between failures, at least, h


Nominal diameter:

DN, mm 50 60 80 100 150 200 250 300 400 500 600-1,700
Qmin, m3/h 0.11 0.15 0.27 0.42 0.95 1.70 2.65 3.82 6.78 10.60 special order
Qmax, m3/h 35.3 50.9 90.4 141.3 317.9 565.2 883.1 1271.7 2,260.8 3,532.5 special order

Download software

NameInstrumentsFiles nameSize,byte
DOTNET 4.0.3


DotNetPack_403ru 124 147 694
XGViewer_1.2.45 PC-2M BP20
XGViewer_1.2.45 15 287 360

Certificate of type approval (RUS)

Certificate of type approval - Kazakhstan (RUS)

Certificate of type approval - Belarus (RUS)

Certificate of type approval - Uzbekistan (RUS)

Certificate of type approval - Kyrgyzstan (RUS)

Certificate of type approval - Turkmenistan (RUS)