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GM32

Measure aggressive gases directly and quickly — even in ATEX zones

  • At a glance
    • Direct, fast in-situ measurement
    • No gas sampling, no gas transport, no gas conditioning
    • Up to eight measuring components at the same time, plus process temperature and pressure
    • DOAS and CDE evaluation process
    • Numerous independent measuring ranges with consistent accuracy
    • Automatic self-test function (QAL3) without test gases
    • Overpressure encapsulated design for ATEX Zones 1 and 2
    Your Benefits
    • Measured values in real time without altering the gas composition
    • Short-term process deviations are detected
    • Representative measurement byselection of cross-duct or measuring probe versions
    • Fast on-site service due to modular design
    • Long maintenance-free intervals
    • Cost-effective in-situ gas analyzer — also in ATEX design
    • Low cost of installation and operation, no test gases required
    • Complete emissions measurement in Kraft pulp process by way of simultaneous measurement of TRS components plus SO2, NO, NH3
    GM32
    Measure aggressive gases directly and quickly — even in ATEX zones

    The GM32 in-situ gas analyzer measures SO2, NO, NO2 and NH3, as well as TRS components in Kraft pulp processes including pressure and temperature in the gas duct. Direct, fast and without gas sampling and transport. This means control systems are able to work with actual values in real time. Thanks to self-monitoring the measured value are reliable at any time. In case of a malfunction an early warning will be shown. For emission measurement of SO2 and NO, GM32 is tested for suitability according to European standard EN 15267. An ATEX version with comprehensive safety functions and sophisticated system technology is also available, as well as the GM32 TRS-PE (PE = Pulp Emission) for TRS measurement in Kraft pulp processes.

  • Please note: 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.

    • GM32 system, standard and Ex-version
      DescriptionType approved in-situ gas analyzer for emission monitoring and process control
      Measured valuesNO, NO2, NH3, SO2
      Performance-tested measurandsNO, SO2
      Measurement principlesDifferential optical absorption spectroscopy (DOAS)
      Measuring ranges
      NH30 ... 30 ppm / 0 ... 2,600 ppm
      NO0 ... 40 ppm / 0 ... 1,900 ppm
      NO20 ... 50 ppm / 0 ... 1,000 ppm
      SO20 ... 15 ppm / 0 ... 7,000 ppm
      LowNO20 ... 15 ppm / 0 ... 1,000 ppm

      Measuring ranges refer to 1 m measuring path

      Measuring ranges depend on application and device version

      Certified measuring ranges
      NO0 ... 70 mg/m³ / 0 ... 700 mg/m³
      SO20 ... 75 mg/m³ / 0 ... 1,000 mg/m³

      With an active measuring path length of 1.86 m (cross- duct) or 1.25 m (open path measuring probe)

      The gas-testable measuring probe (GPP) is not TUV approved

      Response time (t90)
      Open measuring probe (GMP)≥ 5 s
      Gas-testable measuring probe (GPP)≥ 120 s
      Cross-duct version≥ 5 s
      Response time adjustable
      Accuracy
      NH3± 2 %
      NO± 2 %
      NO2± 2 %
      SO2± 2 %
      Relative to the smallest measuring range
      Ambient temperature
      –20 °C ... +55 °C
      Temperature change maximum ±10 °C/h
      Storage temperature
      –20 °C ... +55 °C
      Temperature change maximum ±10 °C/h
      Ambient humidity
      ≤ 96 %
      Relative humidity, bedewing of optical surfaces not permitted
      Conformities

      Approved for plants requiring approval

      2001/80/EC (13. BImSchV)

      2000/76/EC (17. BImSchV)

      27.BImSchV

      TA-Luft (Prevention of Air Pollution)

      EN 15267

      EN 14181

      MCERTS

      GOST

      Ex-approvals
      IECExEx pzc op is [ia] IIC T3 Gc
      ATEXII 3G Ex pzc op is [ia] IIC T3 Gc
      Electrical safetyCE
      Enclosure rating
      StandardIP65, IP69K
      Ex-versionIP65
      OperationVia integrated operating unit or SOPAS ET software
      Test functions

      Internal zero point check

      Check cycle for zero and span point according to QAL3

      Options

      SCU control unit (for non-hazardous areas only)

      Multi range calibration (additional measuring ranges for one component)

      Extended gas temperature range up to 550 °C or 650 °C

      LowNO2

    • GM32 TRS–PE system
      DescriptionIn-situ gas analyzer for TRS monitoring in the Kraft pulping process
      Measured valuesNO, NH3, SO2, CH3SH, (CH3)2S, (CH3)2S2, H2S, TRS
      Measurement principlesChemometrical data evaluation (CDE)
      Measuring ranges
      NH30 ... 35 ppm / 0 ... 50 ppm
      NO0 ... 40 ppm / 0 ... 150 ppm
      SO20 ... 15 ppm / 0 ... 35 ppm
      H2S0 ... 35 ppm
      CH3SH0 ... 25 ppm
      (CH3)2S0 ... 20 ppm
      (CH3)2S20 ... 15 ppm
      TRS0 ... 70 ppm

      Measuring ranges refer to 1 m measuring path

      Measuring ranges depend on application and device version

      TRS = H2S + CH3SH (as H2S equivalent)

      For device variant 7: TRS = H2S + CH3SH + (CH3)2S + 2x (CH3)2S2

      Other measuring ranges on request

      Response time (t90)
      Gas-testable measuring probe (GPP)≥ 120 s
      Response time adjustable
      Accuracy
      NH3± 2 %
      NO± 2 %
      SO2± 0.3 ppm ... ± 2 %
      H2S± 2 %
      CH3SH± 2 %
      (CH3)2S± 2 %
      (CH3)2S2± 2 %
      TRS± 2 %
      Relative to the smallest measuring range
      Ambient temperature
      –20 °C ... +55 °C
      Temperature change maximum ±10 °C/h
      For device variant 7+20 °C ... +30 °C
      Storage temperature
      –20 °C ... +55 °C
      Temperature change maximum ±10 °C/h
      Ambient humidity
      ≤ 96 %
      Relative humidity, bedewing of optical surfaces not permitted
      Electrical safetyCE
      Enclosure rating
      IP65, IP69K
      OperationVia integrated operating unit or SOPAS ET software
      Test functionsInternal zero and reference point check
      OptionsSCU control unit
    • Sender/receiver unit, standard version
      DescriptionAnalyzer unit of the measuring system
      OperationVia integrated operating unit
      Dimensions (W x H x D)
      315 mm x 580 mm x 359 mm
      Weight
      20 kg
    • Sender/receiver unit, Ex-version
      DescriptionAnalyzer unit of the measuring system
      OperationVia integrated operating unit
      Dimensions (W x H x D)
      315 mm x 910 mm x 410 mm
      Weight
      20 kg
    • Open measuring probe (GMP)
      DescriptionMeasuring probe in open design with integrated purge air control system
      Process temperature
      ≤ +550 °C
      Process pressure
      –60 hPa ... 60 hPa
      Relative
      Dimensions (W x H x D)
      See dimensional drawings
      Weight
      25 kg
      Material in contact with mediaStainless steel 1.4571, stainless steel 1.4539
      Auxiliary gas connections
      Integrated components

      Pressure sensor (Not for Ex-version)

      PT1000 temperature sensor (not for Ex-version)

      Flow monitor (monitoring of purge air feed, not for Ex version)

    • Gas-testable measuring probe (GPP)
      DescriptionMeasuring probe with gas permeable filter element for adjustment with test gas
      Process temperature
      With ceramic filter≤ +430 °C
      With Teflon filter≤ +200 °C
      Process pressure
      –60 hPa ... 200 hPa
      Relative
      Dimensions (W x H x D)
      See dimensional drawings
      Weight
      45 kg
      Material in contact with mediaStainless steel 1.4571, stainless steel 1.4539, ceramics, PTFE
      Power supply
      Voltage115 V / 230 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 150 W
      Auxiliary gas connections
      Integrated components

      Pressure sensor

      PT1000 temperature sensor

    • Reflector unit
      DescriptionReflector unit with glass triple reflector
      Process temperature
      ≤ +650 °C
      Process pressure
      –60 hPa ... 200 hPa
      Dimensions (W x H x D)
      291 mm x 280 mm x 161 mm
      Weight
      9 kg
    • Connection unit, standard version
      DescriptionServes for connection of power supply, data and signal cabling provided by the customer
      Analog outputs2 outputs:
      0/4 ... 22 mA, 500 Ω
      Per module, extendable up to eight outputs
      Analog inputs2 inputs:
      0/4 ... 22 mA, 100 Ω
      Digital outputs4 outputs:
      + 48 V AC/DC, 0.5 A, 25 W
      Digital inputs4 inputs:
      + 3.9 V, 4.5 mA, 0.55 W
      Per module, extendable up to eight inputs
      Modbus
      Type of fieldbus integration

      TCP

      RTU RS-485 (via optional interface module)

      CAN bus
      FunctionInternal system bus
      Ethernet
      FunctionConnection to SOPAS ET software or OPC server
      Dimensions (W x H x D)
      450 mm x 424 mm x 158 mm
      Weight
      16 kg
      Power supply
      Voltage100 ... 250 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 260 W
    • Connection unit, Ex-version
      DescriptionServes for connection of power supply, data and signal cabling provided by the customer
      Analog outputs2 outputs:
      0/4 ... 22 mA, 500 Ω
      Per module, extendable up to eight outputs
      Analog inputs2 inputs:
      0/4 ... 22 mA, 100 Ω
      Digital outputs4 outputs:
      + 48 V AC/DC, 0.5 A, 25 W
      Digital inputs4 inputs:
      + 3.9 V, 4.5 mA, 0.55 W
      Per module, extendable up to eight inputs
      Modbus
      Type of fieldbus integration

      TCP

      RTU RS-485 (via optional interface module)

      CAN bus
      FunctionInternal system bus
      Ethernet
      FunctionConnection to SOPAS ET software or OPC server
      Dimensions (W x H x D)
      679 mm x 630 mm x 158 mm
      Weight
      16 kg
      Power supply
      Voltage100 ... 230 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 260 W
    • Purge air fixture, sender/receiver unit
      DescriptionFixture to flanges with connections for purge air and external cabling (only cross duct design)
      Dimensions (W x H x D)
      320.9 mm x 360 mm x 220 mm
      For details see dimensional drawings
      Weight
      7 kg
      Auxiliary gas connections
      Integrated components

      PT1000 temperature sensor (not for Ex-version)

      Flow monitor (monitoring of purge air feed, not for Ex version)

    • Purge air fixture, reflector unit
      DescriptionFixture to flanges with connections for purge air and external cabling (only cross duct design)
      Dimensions (W x H x D)
      320.9 mm x 360 mm x 220 mm
      For details see dimensional drawings
      Weight
      7 kg
      Auxiliary gas connections
      Integrated componentsFlow monitor (monitoring of purge air feed, not for Ex version)
    • SLV4-2 purge air unit, 2BH1300, 3-ph
      DescriptionUnit to provide dust-free air for flushing of optical surfaces
      Gas flow rate
      38 m³/h ... 63 m³/h
      At 30 hPa counter pressure, depending on low pressure inside the filter
      Ambient temperature
      –40 °C ... +55 °C
      Enclosure rating
      IP54
      Dimensions (W x H x D)
      550 mm x 550 mm x 258 mm
      For details see dimensional drawings
      Weight
      18 kg
      Power supply
      Three-phase current

      Δ: 200 ... 240 V, 50 Hz, 2,6 A, 400 W

      Y: 345 ... 415 V, 50 Hz, 1,5 A, 400 W

      Δ: 200 ... 275 V, 60 Hz, 2,6 A, 500 W

      Y: 380 ... 480 V, 60 Hz, 1,5 A, 500 W

      Δ: 270 ... 330 V, 50 Hz, 2,0 A, 400 W

      Y: 465 ... 570 V, 50 Hz, 1,16 A, 400 W

      Δ: 290 ... 360 V, 60 Hz, 2,1 A, 500 W

      Y: 500 ... 600 V, 60 Hz, 1,26 A, 500 W

      Δ: 230 V, 50 Hz, 2,7 A, 370 W

      Δ: 115 V, 60 Hz, 3,0 A, 450 W

      Δ: 220 ... 270 V, 50 Hz, 2,5 A, 400 W

      Y: 380 ... 465 V, 50 Hz, 1,45 A, 400 W

      Δ: 240 ... 290 V, 60 Hz, 2,6 A, 500 W

      Y: 415 ... 500 V, 60 Hz, 1,55 A, 500 W

      Auxiliary gas connections
      Purge air40 mm
      Test functionsPressure switch (switching point –35 hPa)
      Integrated components2-step air filter, type Europiclon, dust capacity 200 g
    • SLV6-1 purge air unit, 2SH1300, ATEX 3G
      DescriptionUnit to provide dust-free air for flushing of optical surfaces, for potentially explosive atmospheres
      Gas flow rate
      38 m³/h ... 63 m³/h
      At 30 hPa counter pressure, depending on low pressure inside the filter
      Ambient temperature
      –20 °C ... +40 °C
      Ex-approvals
      ATEXEx II 3G c T3
      Enclosure rating
      IP54
      Dimensions (W x H x D)
      550 mm x 681 mm x 287 mm
      For details see dimensional drawings
      Weight
      28 kg
      Power supply
      Three-phase current

      3-phase: 230 V/400 V, 50 Hz

      3-phase: 460 V, 60 Hz

      Auxiliary gas connections
      Purge air40 mm
      Test functionsPressure switch (switching point –35 hPa)
      Integrated components2-step air filter, type Europiclon, dust capacity 200 g

    Technical drawings

    SLV6-1 purge air unit, 2SH1300, ATEX 3G
    GM32 reflector unit
    connection unit, Ex-version
    connection unit, standard version
    sender/receiver unit, Ex-version
    sender/receiver unit, standard version
    gas-testable measuring probe (GPP)
    open measuring probe (GMP)
    SLV4-2 purge air unit, 2BH1300
    cross-duct version, Ex-version
    measuring probe version, Ex-version
    cross-duct version, standard version
    measuring probe version, standard version
    cross-duct version
    measuring probe version
    purge air fixture, Ex version, passive
    purge air fixture

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GM32
GM32
In-situ gas analyzers
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