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GM35

For efficient control of combustion and drying processes

  • At a glance
    • Dynamic humidity correction
    • Fast in-situ measurement directly in the process
    • Simultaneous determination of up to three gas components, temperature, and pressure
    • No gas sampling and conditioning
    • Gas testable version of measuring probe available
    • Integrated self-test and control functions
    Your Benefits
    • Dynamic humidity measurement directly in the process
    • Provision of real humidity reference values
    • Unbiased measuring values due to in-situ measurement
    • Fast or short-term fluctuations in the process are being detected
    • Representative measurement by selection of an appropriate probe or cross-duct type
    GM35
    For efficient control of combustion and drying processes

    Simultaneous or as individual measurement: the GM35 gas analyzer measures CO2, H2O and CO, or N2O, as well temperature and pressure – and it does this reliably, quickly, and economically. As an in-situ gas analyzer, the GM35 detects these gas components directly in the gas stream without gas sampling. Reliability, precision, and short response time of the GM35 offer a key advantage for efficient control loops in all CO and CO2-generating 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.

    • GM35 system
      Measured valuesCO, CO2, H2O, N2O
      Performance-tested measurandsCO, CO2, H2O
      Measurement principlesGas filter correlation, Interference filter correlation
      Measuring ranges
      CO0 ... 180 ppm / 0 ... 20,000 ppm
      CO20 ... 22.5 Vol.-% / 0 ... 100 Vol.-%
      H2O0 ... 25 Vol.-% / 0 ... 100 Vol.-%
      N2O0 ... 60 ppm / 0 ... 2,500 ppm

      Measuring ranges refer to 1 m measuring path

      Measuring ranges depend on application and device version

      Certified measuring ranges
      CO0 ... 75 mg/m³ / 0 ... 2,000 mg/m³
      CO20 ... 15 Vol.-%
      H2O0 ... 25 Vol.-%
      Cross-duct and GMP version are type approved
      Zero point drift
      ± 2 %: relative to measuring range end value
      Reference point drift
      ± 2 %: within the maintenance interval, relative to measuring range full scale
      Ambient temperature
      –40 °C ... +55 °C
      Temperature change maximum ±10 °C/h
      Storage temperature
      –40 °C ... +55 °C
      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

      Electrical safetyCE
      Enclosure rating
      IP65 / NEMA 4x
      OperationMenu-driven operation via separate control unit
      Model

      Cross-duct version

      Measuring probe version

      Test functionsAutomatic check cycle for zero and span point
    • Sender/receiver unit
      DescriptionAnalyzer unit of the measuring system
      Enclosure rating
      IP65 / NEMA 4x
      Dimensions (W x H x D)
      291 mm x 527 mm x 529 mm
      Weight
      29 kg
      Power supply
      Voltage115 V AC / 230 V AC
      Frequency48 ... 62 Hz
      Power consumption≤ 350 W
    • Open measuring probe (GMP)
      DescriptionMeasuring probe in open design with integrated purge air control system
      Process temperature
      ≤ +430 °C
      With N2O measurement max. 180 °C
      Process pressure
      ≤ 120 hPa
      Depending on purge air supply
      Process gas velocity
      ≤ 40 m/s
      Dust load
      ≤ 3 g/m³
      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

      PT1000 temperature sensor

    • Gas-testable measuring probe (GPP)
      DescriptionMeasuring probe with gas permeable filter element for adjustment with test gas
      Process temperature
      ≤ +430 °C
      With N2O measurement max. 180 °C
      Process pressure
      ≤ 250 hPa
      Depending on purge air supply
      Process gas velocity
      ≤ 40 m/s
      Dust load
      ≤ 30 g/m³
      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 AC / 230 V AC
      Frequency50 Hz / 60 Hz
      Power consumption≤ 150 W
      Auxiliary gas connections
      Integrated components

      Pressure sensor

      PT1000 temperature sensor

    • Reflector unit
      DescriptionReflector unit with hollow triple reflector
      Process temperature
      ≤ +500 °C
      With N2O measurement max. 180 °C
      Process pressure
      Depending on purge air supply
      Dimensions (W x H x D)
      291 mm x 280 mm x 161 mm
      Weight
      1.5 kg
    • GM35 evaluation unit, steel sheet enclosure
      DescriptionThe evaluation unit serves as the user interface and is responsible for data processing and output as well as control and monitoring functions.
      Enclosure rating
      IP65 / NEMA 4x
      Analog outputs3 outputs:
      0/4 ... 20 mA, 500 Ω
      Electrically isolated
      Analog inputs1 input:
      0 ... 20 mA, 100 Ω
      Digital outputs3 relay contacts:
      + 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W
      Preset for failure, maintenance and functional control
      Digital inputs3 inputs:
      + 24 V
      Serial
      Type of fieldbus integrationRS-232
      FunctionProprietary service interface, connection to SOPAS ET software
      CAN bus
      FunctionInternal system bus
      Indication
      LC display
      Status LEDs: "Power", "Maintenance" and "Failure"
      Input

      Arrow keys

      Functional keys

      OperationMenu-driven operation via LC-display and membrane keyboard
      ModelSteel sheet enclosure
      Dimensions (W x H x D)
      200 mm x 346 mm x 97.5 mm
      Weight
      3 kg
      Power supply
      Voltage115 V / 230 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 50 W
    • GM35 AWE evaluation unit, cast metal enclosure
      DescriptionThe evaluation unit serves as the user interface and is responsible for data processing and output as well as control and monitoring functions.
      Enclosure rating
      IP67
      Analog outputs3 outputs:
      0/4 ... 20 mA, 500 Ω
      Electrically isolated
      Analog inputs1 input:
      0 ... 20 mA, 100 Ω
      Digital outputs3 relay contacts:
      + 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W
      Preset for failure, maintenance and functional control
      Digital inputs3 inputs:
      + 24 V
      Serial
      Type of fieldbus integrationRS-232
      FunctionProprietary service interface, connection to SOPAS ET software
      CAN bus
      FunctionInternal system bus
      Indication
      LC display
      Status LEDs: "Power", "Maintenance" and "Failure"
      Input

      Arrow keys

      Functional keys

      OperationMenu-driven operation via LC-display and membrane keyboard
      ModelCast metal enclosure
      Dimensions (W x H x D)
      289 mm x 370 mm x 138 mm
      Weight
      3 kg
      Power supply
      Voltage115 V / 230 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 50 W
    • Connection unit
      DescriptionTo lengthen the internal CAN-Bus connection with cable provided by the customer
      Dimensions (W x H x D)
      125 mm x 103 mm x 57 mm
      Weight
      3 kg
    • Purge air fixture, sender/receiver unit
      DescriptionFixture to flanges with connections for purge air and external cabelling
      Dimensions (W x H x D)
      320.9 mm x 360 mm x 220 mm
      Weight
      7 kg
      Auxiliary gas connections
      Integrated components

      PT1000 temperature sensor

      Pressure sensor

    • Purge air fixture, reflector unit
      DescriptionFixture to flanges with connections for purge air and external cabelling
      Dimensions (W x H x D)
      320.9 mm x 360 mm x 220 mm
      Weight
      7 kg
      Auxiliary gas connections
    • 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

    Technical drawings

    GM35 connection unit
    evaluation unit, cast metal enclosure
    GM35 reflector unit
    gas-testable measuring probe (GPP)
    open measuring probe (GMP)
    GM35 sender/receiver unit
    SLV4-2 purge air unit, 2BH1300
    evaluation unit, steel sheet enclosure
    purge air fixture
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