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Dubai
Abu dhabi
+971 4 3247500 Sun - Thu 08:00 - 5:30 No: FZJOA1517, JAFZA ONE PO BOX 18410, DXB
+971 2 6765979 Sun - Thu 08:00 - 5:30 P.O. Box : 33719, Abu Dhabi, UAE
UAE Qatar India
Dubai
Dubai
Abu dhabi
+971 4 3247500 Sun - Thu 08:00 - 5:30 No: FZJOA1517, JAFZA ONE PO BOX 18410, DXB
+971 2 6765979 Sun - Thu 08:00 - 5:30 P.O. Box : 33719, Abu Dhabi, UAE
UAE Qatar India
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GM35 in-situ gas analyzer

GM35- CO, CO2, H2O, N2O

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.

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Description
Overview
Technical Specifications
Applications
Video

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 system
    Measured values CO, CO2, H2O, N2O
    Performance-tested measurands CO, CO2, H2O
    Measurement principles Gas filter correlation, Interference filter correlation
    Measuring ranges
    CO 0 … 180 ppm / 0 … 20,000 ppm
    CO2 0 … 22.5 Vol.-% / 0 … 100 Vol.-%
    H2O 0 … 25 Vol.-% / 0 … 100 Vol.-%
    N2O 0 … 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
    CO 0 … 75 mg/m³ / 0 … 2,000 mg/m³
    CO2 0 … 15 Vol.-%
    H2O 0 … 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 safety CE
    Enclosure rating
    IP65 / NEMA 4x
    Operation Menu-driven operation via separate control unit
    Model Cross-duct version

    Measuring probe version
    Test functions Automatic check cycle for zero and span point
  • Sender/receiver unit
    Description Analyzer 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
    Voltage 115 V AC / 230 V AC
    Frequency 48 … 62 Hz
    Power consumption ≤ 350 W
  • Open measuring probe (GMP)
    Description Measuring 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 media Stainless steel 1.4571, stainless steel 1.4539
    Auxiliary gas connections
    Integrated components Pressure sensor

    PT1000 temperature sensor
  • Gas-testable measuring probe (GPP)
    Description Measuring 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 media Stainless steel 1.4571, stainless steel 1.4539, ceramics, PTFE
    Power supply
    Voltage 115 V AC / 230 V AC
    Frequency 50 Hz / 60 Hz
    Power consumption ≤ 150 W
    Auxiliary gas connections
    Integrated components Pressure sensor

    PT1000 temperature sensor
  • Reflector unit
    Description Reflector 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
    Description The 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 outputs 3 outputs:
    0/4 … 20 mA, 500 Ω
    Electrically isolated
    Analog inputs 1 input:
    0 … 20 mA, 100 Ω
    Digital outputs 3 relay contacts:
    + 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W
    Preset for failure, maintenance and functional control
    Digital inputs 3 inputs:
    + 24 V
    Serial ✔
    Type of fieldbus integration RS-232
    Function Proprietary service interface, connection to SOPAS ET software
    CAN bus ✔
    Function Internal system bus
    Indication
    LC display
    Status LEDs: “Power”, “Maintenance” and “Failure”
    Input Arrow keys

    Functional keys
    Operation Menu-driven operation via LC-display and membrane keyboard
    Model Steel sheet enclosure
    Dimensions (W x H x D)
    200 mm x 346 mm x 97.5 mm
    Weight
    3 kg
    Power supply
    Voltage 115 V / 230 V
    Frequency 50 Hz / 60 Hz
    Power consumption ≤ 50 W
  • GM35 AWE evaluation unit, cast metal enclosure
    Description The 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 outputs 3 outputs:
    0/4 … 20 mA, 500 Ω
    Electrically isolated
    Analog inputs 1 input:
    0 … 20 mA, 100 Ω
    Digital outputs 3 relay contacts:
    + 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W
    Preset for failure, maintenance and functional control
    Digital inputs 3 inputs:
    + 24 V
    Serial ✔
    Type of fieldbus integration RS-232
    Function Proprietary service interface, connection to SOPAS ET software
    CAN bus
    Function Internal system bus
    Indication
    LC display
    Status LEDs: “Power”, “Maintenance” and “Failure”
    Input Arrow keys

    Functional keys
    Operation Menu-driven operation via LC-display and membrane keyboard
    Model Cast metal enclosure
    Dimensions (W x H x D)
    289 mm x 370 mm x 138 mm
    Weight
    3 kg
    Power supply
    Voltage 115 V / 230 V
    Frequency 50 Hz / 60 Hz
    Power consumption ≤ 50 W
  • Connection unit
    Description To 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
    Description Fixture 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
    Description Fixture 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
    Description Unit 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 air 40 mm
    Test functions Pressure switch (switching point –35 hPa)
    Integrated components 2-step air filter, type Europiclon, dust capacity 200 g

Fields of applications

  • Emission monitoring according to EN 14181, e. g., in power or cement plants
  • Control of the water injection upstream of the electrostatic precipitator
  • Monitoring of the combustion efficiency in hazardous waste incineration
  • Process monitoring in urea production
  • Tube rupture detection in heat exchangers

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