Gas flow measuring instruments
FLOWSIC100 Flare-XT

FLOWSIC100 Flare-XT
On request
Please note: In accordance with Article 2 (4), this product does not fall within the scope of RoHS directive 2011/65/EU and is also not designed for use in products which fall within the scope of this directive. You can find additional information in the product information.
The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.
Our regional sales organization will help you to select the optimum device configuration.
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  • Precise and robust gas flow meter for flare gas or flare stack applications: Our ultrasonic gas flow measuring instrument FLOWSIC100 Flare-XT is designed for flare gas measurement or flare metering. The high-resolution measurement and innovative sensor design is being developed for most efficient uses in petroleum refineries, natural gas processing or offshore and onshore oil and gas plants. Emission control or monitoring, detection of flare gas leaks, steam flow measurement, monitoring of gas losses, monitoring of steam injection in flare gas burning, as well as process optimization and condition monitoring are fields of use for this gas flow meter. The gas flow meter is measuring values such as gas velocity, gas temperature, gas volume and mass, mass flow rate, molecular weight, volumetric flow a. c., volumetric flow s. c. and sound velocity. The flare gas flow meter provides an intelligent device monitoring process and supports predictive maintenance - designed for current and future challenges.

    At a glance
    • Measurement availability under all operating conditions, at high gas velocities and with changing gas compositions
    • Intuitive FLOWgateTM operating software
    • I-diagnosticsTM for self-monitoring, easy verification and condition-based maintenance of the system
    • Retrofit solutions for existing measurement systems
    Your benefits
    • Several standards and guidelines for flare gas measurement are observed
    • Maximum plant availability
    • Ultrasonic sensors, Interface Unit, Spool Piece from a single source as well as globally available services
    • Compatible with current and future communication architectures
    • Independent maintenance through verification on demand and support by SICK when required
    • Easy replacement of existing measurement systems, with suitable retrofit or upgrade solutions available
    • FLOWSIC100 Flare-XT system
      Measured valuesMass flow rate, volumetric flow s. c. (standard condition), volumetric flow a. c. (actual condition), molecular weight, gas volume and mass, gas velocity, gas temperature, sound velocity
      Number of measuring pathsSingle path, Dual path
      Measurement principleUltrasonic runtime difference measurement, ASC technology (ASC = active sound correlation)
      Measuring mediumTypical flare gas
      Measuring ranges0,03 m/s ... 120 m/s 1
      Measuring spanUp to 4000:1 1
      Repeatability(acc. to ISO 5725-1; JCGM 200:2012): < 0.5 % of the measured value in the range ≥ 1 m/s
      Resolution(acc. to JCGM 200:2012): + 0.001 m/s
      Uncertainty of measurement
      Volumetric flow, a. c. 1-31 % ... 5 %
      Related to the measured value with ultrasonic technology (in the range ≥ 0.3 m/s to measuring range end value)
      0,5 % ... 1,5 % with Spool Piece and flow calibration
      Related to the measured value with ultrasonic technology (in the range ≥ 1 m/s to calibration range end value) 4
      Mass flow rate 1-32 % ... 5.5 %
      Related to the measured value with ultrasonic technology (in the range ≥ 0.3 m/s to measuring range end value)
      1,5 % ... 2 % with Spool Piece and flow calibration
      Related to the measured value with ultrasonic technology (in the range ≥ 1 m/s to calibration range end value) 4
      ASC technology measurement uncertainty
      Volumetric flow, a. c. 1,2,51 % ... 8 %
      Nominal pipe size
      1-path measurement4 ″ ... 72 ″
      2-path measurement12 ″ ... 72 ″
      Other nominal sizes on request
      Ambient humidity≤ 95 %
      Relative humidity
      Conformities

      ATEX: 2014/34/EU

      EMC: 2014/30/EU

      RoHS: 2011/65/EU

      PED: 2014/68/EU

      Electrical safetyIEC 61010-1
      Footnote

      1 Depending on application conditions, such as gas composition, process temperature, device type, pipe diameter, etc. For mass flow additionally selection and parameterization of the conversion algorithm as well as uncertainty of the pressure and temperature sensors. To be evaluated by SICK.

      2 With fully developed turbulent flow profile. Typically 20D straight upstream and 5D straight downstream piping is required.

      3 Below a specific threshold Reynolds number, only run time effects and uncertainties of geometry, excluding contributions from the flow profile are considered.

      4 Depending on the capabilities of the selected flow lab.

      5 Additional measurement uncertainty. In the range of 100 % - 130 % of the last gas velocity measured with ultrasonic transit time difference measurement.

    • General technical information for ultrasonic sensors
      Ambient temperature
      Sensors, ignition group IIC T4–40 °C ... +70 °C
      Sensors, ignition group IIC T4–50 °C ... +70 °C
      (optional)
      Sensors, ignition group IIC T6–40 °C ... +55 °C
      Sensors, ignition group IIC T6–50 °C ... +55 °C
      (optional)
      Storage temperature

      –40 °C ... +70 °C

      –50 °C ... +70 °C
      (optional)

      Enclosure rating
      IP66 / IP67
      Dimensions (W x H x D)For details see dimensional drawings
    • F1F-S
      Gas temperature
      –196 °C ... +280 °C
      Operating pressure

      CL150 device flange 1: 20 bar (g)

      PN25 device flange (optional) 1: 20 bar (g)

      CL300 device flange (optional) 1: 20 bar (g)
      1 Temperature dependent. For details, see section Application ranges.

      Ex-approvals
      IECExEx db [ia Ga] IIA T4 Ga/Gb
      Ex db [ia Ga] IIB T4 Ga/Gb
      Ex db [ia Ga] IIC T6 Ga/Gb
      Ex ia IIC T6 Ga
      ATEXII 1/2G Ex db [ia Ga] IIA T4 Ga/Gb
      II 1/2G Ex db [ia Ga] IIB T4 Ga/Gb
      II 1/2G Ex db [ia Ga] IIC T6 Ga/Gb
      II 1G Ex ia IIC T6 Ga
      NEC/CEC (US/CA)Class I, Division 1, Group D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIA, T4
      Class I, Division 2, Group D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIA, T4
      Class I, Division 1, Groups C and D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIB, T4
      Class I, Division 2, Groups C and D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIB, T4
      Class I, Division 1, Groups B, C and D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIB + H2, T4
      Class I, Division 2, Groups A, B, C and D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIC, T4
      Weight≤ 12 kg
      (pair of ultrasonic sensors)
    • F1F-H
      Gas temperature
      –70 °C ... +280 °C
      Operating pressure

      CL150 device flange 1:
      ATEX/IECEx: 20 bar(g)
      CSA: 16 bar(g)

      PN25 device flange (optional) 1:
      ATEX/IECEx: 20 bar(g)
      CSA: 16 bar(g)

      CL300 device flange (optional) 1:
      ATEX/IECEx: 20 bar(g)
      CSA: 16 bar(g)

      1 Temperature dependent. For details, see section Application ranges.

      Ex-approvals
      IECExEx db IIC T6 Gb
      ATEXII 2G Ex db IIC T6 Gb
      NEC/CEC (US/CA)Class I, Division 1, Groups B, C and D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIB + H2, T4
      Class I, Division 2, Groups A, B, C and D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIC, T4
      Weight≤ 14 kg
      (pair of ultrasonic sensors)
    • F1F-P
      Gas temperature
      –196 °C ... +280 °C
      Operating pressure

      CL150 device flange 1:
      ATEX/IECEx: 20 bar(g)
      CSA: 16 bar(g)

      PN25 device flange (optional) 1:
      ATEX/IECEx: 20 bar(g)
      CSA: 16 bar(g)

      CL300 device flange (optional) 1:
      ATEX/IECEx: 20 bar(g)
      CSA: 16 bar(g)

      1 Temperature dependent. For details, see section Application ranges.

      Ex-approvals
      IECExEx db [ia Ga] IIA T4 Ga/Gb
      Ex db [ia Ga] IIB T4 Ga/Gb
      Ex db [ia Ga] IIC T6 Ga/Gb
      ATEXII 1/2G Ex db [ia Ga] IIA T4 Ga/Gb
      II 1/2G Ex db [ia Ga] IIB T4 Ga/Gb
      II 1/2G Ex db [ia Ga] IIC T6 Ga/Gb
      NEC/CEC (US/CA)Class I, Division 1, Group D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIA, T4
      Class I, Division 2, Group D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIA, T4
      Class I, Division 1, Groups C and D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIB, T4
      Class I, Division 2, Groups C and D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIB, T4
      Class I, Division 1, Groups B, C and D, T4
      Class I, Zone 1, Ex/AEx d[ia] IIB + H2, T4
      Class I, Division 2, Groups A, B, C and D, T4
      Class I, Zone 2, Ex/AEx nA[ia] IIC, T4
      Weight≤ 10 kg
      (pair of ultrasonic sensors)
    • Interface Unit
      DescriptionUnit for controlling the ultrasonic sensors and processing, evaluating and storing measured value data
      Ambient temperature
      –40 °C ... +60 °C
      -40 °C ... +65 °C (optional (limited I/O))
      Storage temperature–40 °C ... +70 °C
      Ambient pressure80 kPa ... 110 kPa
      (0,8 bar .. 1,1 bar)
      Ambient humidity≤ 95 %
      Relative humidity
      Ex-approvals
      IECExZone 1: Ex db eb ia IIC T4 Gb
      Zone 1: Ex db ia IIC T4 Gb
      Zone 2: EX ec ia IIC T4 Gc
      ATEXZone 1: II 2G Ex db eb ia IIC T4 Gb
      Zone 1: II 2G Ex db ia IIC T4 Gb
      Zone 2: II 3G Ex ec ia IIC T4 Gc
      NEC/CEC (US/CA)Zone 1: Ex d ia IIC T4 Gb
      Zone 1: Class I, Zone 1, AEx d ia IIC T4 Gb
      Zone 1: Class I, Division 1, Groups B, C, D, T4
      Zone 2: EX ec ia IIC T4 Gc
      Zone 2: Class I, Zone 2, AEx ec ia IIC T4 Gc
      Zone 2: Class I, Division 2, Group A, B, C and D, T4
      Enclosure rating
      IP66 acc. IEC 60529, Type 4X acc. UL50E
      Analog outputsUp to 6 outputs when using I/O modules (Option)
      16 bit:
      4 ... 20 mA
      7 V DC ... 30 V DC
      In accordance with NAMUR NE43
      Passive, electrically isolated
      Reverse polarity protection
      Analog inputsUp to 6 outputs when using I/O modules (option)
      24 bit:
      4 ... 20 mA
      0 ... 5 V DC
      In accordance with NAMUR NE43
      Passive, electrically isolated
      Reverse polarity protection
      Digital outputs

      Switching output:
      Up to 6 outputs when using I/O module (option)
      Electrically isolated
      Max. current: 70 mA
      Max. switching frequency: 50 Hz
      Max. input voltage: 30 V DC
      Max. saturation voltage at output: 0.5 V DC
      Switchable Namur/open collector
      Reverse polarity protection

      Digital output/Frequency output:
      Up to 12 digital outputs when using I/O modules (option)
      Electrically isolated
      Max. current: 50 mA
      Max. switching frequency: 10 kHz
      Max. input voltage: 30 V DC
      Max. saturation voltage at output: 1.8 V DC
      Switchable Namur/open collector
      Reverse polarity protection

      Digital inputsUp to 6 with use of I/O modules
      (Option):
      Electrically isolated
      For connecting volt-free contacts or active switching outputs
      Min. input on voltage 2 V DC
      Max. input off voltage 2.85 V DC
      Max. clamping voltage: 30 V DC
      Reverse voltage protection
      Serial✔ (3)
      Type of fieldbus integrationRS-485
      Data transmission rateElectrically isolated
      Ethernet
      Data transmission rate10 Mbit/s ... 100 Mbit/s
      Modbus
      Type of fieldbus integrationTCP
      RTU RS-485
      ASCII RS-485
      HART
      Type of fieldbus integrationHART® master for connecting external pressure and temperature transmitter
      HART® slave (for communication with control system)
      Foundation Fieldbus
      Remark(Option)
      Data transmission rateClamping voltage: DC 9 V DC ... 32 V DC
      Current consumption: 18 mA
      FOUNDATION fieldbusTM H1, IEC 61158-2 with 31.25 kBit/s
      ITK 6.3
      3 transducer blocks for process measurement variables, counter readings and diagnostic variables
      8 AI blocks
      1 PID block
      Optical interface
      Type of fieldbus integrationService interface (IR, according to IEC 62056-21)
      IndicationLCD: Measurands, system information, maintenance, need for maintenance, alarm
      OperationFLOWgateTM software or control panel on the LCD screen
      Dimensions (W x H x D)For details see dimensional drawings
      Weight

      Zone 1/Div 1 Ex db version: + 17.5 kg

      Zone 1 Ex db eb version: + 23 kg

      Non-Ex/Zone 2: + 8 kg

      Electrical connection
      Voltage115 ... 230 V AC / 15 ... 28 V DC
      FrequencyAC variant: 50 ... 60 Hz
      Power consumption≤ 18 W
      (AC variant) / ≤ 12 W (DC variant)
      OptionsOffshore-version, sun and weather protection, tag plate, mounting set 2-inch-pipe installation, infrared-USB adapter, cable glands

    Technical drawings

    FLOWSIC100 Flare-XT
    Dimensional drawing Interface Unit Cl. 1 Div. 2
    FLOWSIC100 Flare-XT
    Dimensional drawing Interface Unit Zone 2
    FLOWSIC100 Flare-XT
    Dimensional drawing Interface Unit Zone 1 EXDE
    FLOWSIC100 Flare-XT
    Dimensional drawing Interface Unit Cl. 1 Div. 1 + Zone 1 EXD
    FLOWSIC100 Flare-XT
    Dimensional drawing F1F-S/H
    FLOWSIC100 Flare-XT
    Dimensional drawing F1F-P-M20/-NPT
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