Manufacturer of gas, steam, liquid and thermal energy meters
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45A Sadovaya street, Belgorod, Russia
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    Manufacturer of gas, steam, liquid and thermal energy meters
    45A Sadovaya street, Belgorod, Russia
    +7 (800) 350-83-60
    Order a call
    Globus
    Products
    • New features of our devices
    • Metering devices
      Metering devices
      • Flowmeters
      • Meters
      • Irga-2 electronic correctors
    • Telemetry measuring system
      Telemetry measuring system
      • Integration of the Irga-2 computer in the automated process control system
      • Metering cabinets
    • Means of verification
      Means of verification
    • Hydraulic bench
      Hydraulic bench
    • Auxiliaries
      Auxiliaries
    • Medical equipment
      Medical equipment
    Service
    • Site Survey
    • Pre-Commissioning and Contract Supervision
    • Warranty and Post Warranty Maintenance
    • Service and Repair
    • Application Software Development
    • Development and Manufacture of Non-Standard Measuring Instruments according to Customer Specifications
    • Training
    Documentation
    • Certificates
    • Licenses
    • Operating instructions, technical documentation
    • Software
    Press center
    • News
    Company
    • About company
    • Requisites
    Contacts
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          • Telemetry measuring system
          • Integration of the Irga-2 computer in the automated process control system
          • Metering cabinets
        • Means of verification
        • Hydraulic bench
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        • Pre-Commissioning and Contract Supervision
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      45A Sadovaya street, Belgorod, Russia
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      • IRGA-RU ULTRASONIC FLOWMETER

      IRGA-RU ULTRASONIC FLOWMETER

      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER
      • IRGA-RU ULTRASONIC FLOWMETER

      The Irga-RU ultrasonic flow meter (hereinafter referred to as flow meters) is designed for measuring the volume and volumetric flow rate of gases (natural gas, air, nitrogen, oxygen, hydrogen, associated petroleum gas, coke oven gas, etc.).

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      • Description
      • Technical characteristics
      • Principle of operation
      • Versions
      • Advantages
      Description

      The Irga-RU ultrasonic flow meter (hereinafter referred to as flow meters) is designed for measuring the volume and volumetric flow rate of gases (natural gas, air, nitrogen, oxygen, hydrogen, associated petroleum gas, coke oven gas, etc.).

      The flow meter complete with the Irga-2 computer (or another similar computer) is intended both for stand-alone use and for use as part of meters, metering units and measuring complexes.

      It is possible to supply flow meters in a special version for a specific gas composition indicated by the customer in the questionnaire. If the gas composition is not specified by the customer, flow meters are produced for natural gas in accordance with GOST 5542.

      The composition of the flowmeter

      Structurally the flowmeter consists of three blocks:

      • "Irga RUP primary flow converter ", which is a mechanical device;

      • “VR 100 RU” electronic block;

      • "Irga BP" power supply unit with built-in spark protection barrier (if necessary). In non-explosive areas of premises and outdoor installations, the flowmeter is powered by a DC power supply with voltage of (5±0.5) V and 20 mA current (the DC power supply is not included in the flowmeter kit).

      • The VR-100 RU electronic unit controls ultrasonic transceivers, receives, processes, converts and transmits signals to the computing device, including, among other things, information about the travel time of ultrasonic pulses, which is necessary for calculating the volumetric gas flow rate under operating conditions (GOST 8.611 - 2013):

        v = (L•(t2 - t1)) / (2•t1•t2•cosα),

        where

        • v is the flow rate in the pipeline,

        • L is the distance between the transceivers,

        • α is the angle between the axis of installation of the sensors and the axis of the pipeline,

        • t1 and t2 are the travel times of ultrasonic pulses upflow and downflow.

        The Irga-2 computers (electronic correctors) of GLOBUS LLC or any other similar devices can be used as a computer (for example, Logika and Teplokom gas correctors).

      Technical characteristics

      Metrological and technical specifications

      Table 1. Metrological specifications

      Nominal diameter,
      DN *
      Range of flow measurements, m3/h
      minimum maximum
      25 0,03 24
      32 0,08 120
      40 0,12 180
      50 0,20 300
      80 0,50 800
      100 0,80 1200
      150 2,00 3000
      200 5,00 8000
      250 8,00 12000
      300 10,0 15000
      400 16,0 24000
      500 25,0 40000
      700 100 50000
      800 160 50000
      Limits of permissible relative measurement error of volumetric flow (Q) under operating conditions
      Nominal diameter,
      DN *
      0,025Qmax ≤ Q ≤ Qmax Qmin ≤ Q ≤0,025 Qmax
      25 to 500 ± 1,0% ± (1,0÷1,5)%
      700, 800 ± 2,0% ± 5,0%


      Table 2. Main technical specifications

      Specification

      Value

      Medium

      Gas

      • natural gas

      • air

      • nitrogen

      • oxygen

      • hydrogen

      • APG

      • coke-oven gas


      etc.

      Operating measurement ranges

      • 0.03 to 50,000 m3/h

      Nominal diameter, DN

      • 25 to 800 mm



      Medium temperature

      • - 55 to + 170 °С

      Ambient temperature

      • - 55 to + 80 °С

      Medium pressure

      • up to 32.0 MPa (320 atm)

      Calibration period

      • 48 months

      Power supply

      • AC: 220 V, 50 Hz

      • DC: 24 V

      • lithium battery: 3.6 V

      Power consumption

      • no more than 10 W

      The Irga-RU dimensions:*

      • length

      • width

      • height

      • 420 to 2,400 mm

      • 195 to 1,020 mm

      • 242 to 1,015 mm

      Note

      * Depending on DN and version.

      VR-100 RU dimensions:

      • no more than 115x90x55 mm

      Irga-BP dimensions:

      • no more than 210х140х100 mm

      The weight of the Irga-RU depends on DN and version

      • 2.5 to 456 kg

      The weight of the VR-100 RU

      • no more than 0.6 kg

      The weight of the Irga-BP

      • no more than 1.5 kg

      Mean time between failures

      • 75,000 h

      Full service life

      • 15 years

      Explosion proof marking

      • Irga-RUP

      • VR-100 RU

      • Irga-BP

      • 0ExiaIICT4

      • 0Exia[ia]IICT5

      • [Exia]IIC

      Principle of operation

      The operation principle of the Irga-RU flow meter is based on the time-pulse measurement of gas flow.
      It consists in measuring the transit time of ultrasonic (ultrasound) pulses in the upflow and downflow pipeline. The excitation and reception of pulses at a frequency of about 100 kHz is carried out by piezoelectric transducers, which are installed in the all-metal body of the flow meter at an angle (from 30 to 45 °, depending on version) to the direction of flow.

      The Irga-RU ultrasonic flow meter converts the volumetric flow rate of the measured medium into frequency, impulse-number or current (a specific type of output signal is indicated when ordering).

      Versions

      The flow meter has the following versions for the power supply:

      • for explosive areas:

        • S1 - Irga-BP, AC powered with a frequency of (50±1) Hz and a voltage of 187 to 242 V with a built-in liquid crystal display (LCD) to show the current volumetric flow rate of the measured medium under operating conditions

        • S2 - Irga-BP, AC powered with a frequency of (50±1) Hz and a voltage of 187 to 242 V without a built-in LCD

        • S3 - Irga-BP, DC powered with a supply voltage (24±1) V with a built-in LCD to display the current volumetric flow rate of the measured medium under operating conditions

        • C4 - Irga-BP, DC powered with a supply voltage (24±1) V without built-in LCD

        • C5 - Irga-BP, powered by a 3.6 V lithium battery with a built-in LCD to display the current volumetric flow rate of the measured medium under operating conditions

        • C6 - Irga-BP, powered by a 3.6 V lithium battery without built-in LCD

      • for non-explosive areas:

        • S7 - the flow meter is powered from a DC source with a supply voltage of 5V

      The flow meter versions depending on the medium pressure:

      • up to 0.15 MPa

      • up to 1.6 MPa

      • up to 2.5 MPa

      • up to 4.0 MPa

      • up to 6.3 MPa

      • up to 10.0 MPa

      • up to 16.0 MPa

      • up to 20.0 MPa

      • up to 32.0 MPa

      • up to 32.0 MPa



      The flow meter versions depending on the output signal:

      • F1100 - frequency, 100 to 1,100 Hz

      • F1000 - frequency, 0 to 1,000 Hz

      • F0 - impulse-number

      • I20 - unified current 4 to 20 mA

      • HL - digital,
        (output of measured parameters to an external
        digital controller or computer)

      • HART - HART output

      At the customer's request, the flow meter can be controlled via WiFi using a conventional mobile phone or tablet.

      Advantages

      There are versions that do not require straight sections (25 mm to 200 mm)

      A wide range of measured costs 1: 1,500

      Lack of hydraulic resistance

      Reliability (there are no mobile mechanical elements)

      High accuracy

      High-speed performance

      Noise immunity


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      • New features of our devices
      • Metering devices
        • Flowmeters
        • Meters
        • Irga-2 electronic correctors
      • Telemetry measuring system
      • Means of verification
      • Hydraulic bench
      • Auxiliaries
      • Medical equipment
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      Our contact

      +7 (800) 350-83-60
      Mo.-Fr from 8: 00 to 17: 00
      45A Sadovaya street, Belgorod, Russia
      sale@irga.ru
      service@irga.ru
      globus@irga.ru

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