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In-situ gas analyzers
GM700

Efficient process analysis – even under difficult conditions

Your Benefits

  • In-situ measurement directly in the process for accurate measured values
  • Measuring probe or cross-duct types to match the requirements of your measuring task perfectly
  • High reliability during operation
  • Can also be used in harsh ambient conditions
  • Detects quick and short-term process fluctuations

Overview

Efficient process analysis – even under difficult conditions

High reliability and precision as well as minimal response times are the distinguishing features of the GM700 laser gas analyzer. Based on the principle of TDLS (Tunable Diode Laser Spectroscopy) and by using specific light absorption, the GM700 is able to measure several gas components, such as NH3, HF, HCl or H2O. The in-situ measurement is ideal for the fast determination of gas concentrations in process control and emission monitoring.

At a glance
  • High selectivity due to high spectral resolution
  • Short response times
  • No calibration required
  • No moving parts: minimal wear and tear
  • No gas sampling or conditioning required
  • Overpressure encapsulated design for ATEX Zone 2

Accessories

spareparts

Applications

Service & Support

Technical overview

 

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.

  • System GM700, standard version

    System GM700, standard version

    DescriptionIn-situ gas analyzer for emission monitoring and process measurement
    Measured valuesNH3, HF, HCl, H2O
    Performance-tested measurandsHF
    Measurement principlesDiode laser spectroscopy (TDLS)
    Measuring ranges
    NH3 (up to 20% H2O by volume)0 ... 25 ppm / 0 ... 4,000 ppm
    NH3 (up to 40% H2O by volume)0 ... 25 ppm / 0 ... 100 ppm
    HCl0 ... 10 ppm / 0 ... 3,000 ppm
    HF0 ... 5 ppm / 0 ... 2,000 ppm
    Measuring ranges refer to 1 m measuring path
    Measuring ranges depend on application and device version
    Dual measuring ranges
    HCl / H2O0 ... 10 ppm / 0 ... 3,000 ppm (HCl)
    0 ... 50 Vol.-% / 0 ... 100 Vol.-% (H2O)
    NH3 / H2O0 ... 25 ppm / 0 ... 4,000 ppm (NH3)
    0 ... 20 Vol.-% / 0 ... 20 Vol.-% (H2O)
    NH3 / H2O0 ... 25 ppm / 0 ... 100 ppm (NH3)
    0 ... 40 Vol.-% / 0 ... 40 Vol.-% (H2O)
    Measuring ranges refer to 1 m measuring path
    Measuring ranges depend on application and device version
    Certified measuring ranges
    HF0 ... 5 mg/m³ / 0 ... 25 mg/m³
    Suitability-tested in the cross-duct type
    Response time (t90)
    Standard1 s ... 360 s
    Adjustable, preset to 4 s
    HF measurement1 s ... 180 s
    Adjustable, preset to 4 s, suitability-tested according to EN 15267
    Accuracy
    Zero point≤ ± 2 %
    Relative to measuring range end value
    Sensitivity≤ ± 2 %
    Within the maintenance interval (6 months), relative to measuring range full scale
    Ambient temperature
    –20 °C ... +50 °C
    Depends on parameterization; temperature change max. ±10 °C/h
    Storage temperature
    –40 °C ... +55 °C
    Ambient humidity
    ≤ 95 %
    Relative humidity; non-condensing
    Conformities

    Only for HF

    Approved for plants requiring approval

    2001/80/EC (13. BImSchV)

    2000/76/EC (17. BImSchV)

    27. BImSchV

    30. BImSchV

    TA-Luft (Prevention of Air Pollution)

    EN 15267

    EN 14181

    Electrical safetyCE
    Mounting

    Mounting flange, DN125, PN6

    Mounting flange, ANSI, 5″

    Test functionsAutomatic check cycle for zero and span point (only for NH3 and HCl)
    OptionsSCU control unit (for non-hazardous areas only)
  • System GM700; Ex-version

    System GM700; Ex-version

    DescriptionIn-situ gas analyzer for emission monitoring and process measurement
    Measured valuesNH3, H2O
    Measurement principlesDiode laser spectroscopy (TDLS)
    Measuring ranges
    NH30 ... 25 ppm / 0 ... 4,000 ppm
    Measuring ranges refer to 1 m measuring path
    Measuring ranges depend on application and device version
    Dual measuring ranges
    NH3 / H2O0 ... 25 ppm / 0 ... 4,000 ppm (NH3)
    0 ... 20 Vol.-% / 0 ... 20 Vol.-% (H2O)
    Measuring ranges refer to 1 m measuring path
    Measuring ranges depend on application and device version
    Response time (t90)
    1 s ... 360 s
    Adjustable, preset to 4 s
    Accuracy
    Zero point≤ ± 2 %
    Relative to measuring range end value
    Sensitivity≤ ± 2 %
    Within the maintenance interval (6 months), relative to measuring range full scale
    Ambient temperature
    –20 °C ... +50 °C
    Depends on parameterization; temperature change max. ±10 °C/h
    Storage temperature
    –20 °C ... +50 °C
    Ambient humidity
    ≤ 95 %
    Relative humidity; non-condensing
    Ex-approvals
    ATEXII 3/-G Ex pzc op is [ia] IIC T4 Gc/-
    Electrical safetyCE
    Mounting

    Mounting flange, DN125, PN6

    Mounting flange, ANSI, 5″

    Test functionsAutomated control cycle for zero and reference point (only for NH3)
  • Sender/receiver unit; standard and Ex-version

    Sender/receiver unit; standard and Ex-version

    DescriptionAnalyzer unit of the measuring system
    Electrical safetyCE
    Enclosure rating
    IP65
    Dimensions (W x H x D)
    Standard version239 mm x 316 mm x 338 mm (for details see dimensional drawings)
    Ex-version239 mm x 401 mm x 338 mm (for details see dimensional drawings)
    Weight
    Standard version13 kg
    Ex-version14 kg
    Power supply
    Voltage24 V DC
    VoltageSupply via control unit
    Power consumption36 W
  • Open measuring probe (GMP)

    Open measuring probe (GMP)

    DescriptionMeasuring probe in open design with integrated purge air control system
    Measuring distance
    See dimensional drawings
    Accuracy
    Pressure sensor1 %
    Temperature sensor1 %
    Process temperature
    Standard version≤ +250 °C
    From 200 °C with heated purge air
    Ex-version≤ +200 °C
    Process pressure
    –60 hPa ... 30 hPa
    Depending on purge air supply
    Dust load
    ≤ 3 g/m³
    Based on a 1 m measuring distance, depending on application
    Electrical safetyCE
    Enclosure rating
    IP66
    Dimensions (W x H x D)
    Dimensions may vary. For details, see the dimensional drawings.
    Weight
    See dimensional drawings
    Material in contact with mediaStainless steel 1.4571, stainless steel 1.4539
    Power supply
    VoltageSupply via sender/receiver unit
    Auxiliary gas connections
    Purge airHose nozzle 40 mm
    Integrated components

    Flow monitor for purge air monitoring

    PT1000 temperature sensor (not for Ex-version)

    Pressure sensor (Not for Ex-version)

  • Gas-testable measuring probe (GPP)

    Gas-testable measuring probe (GPP)

    DescriptionMeasuring probe with gas permeable filter element for adjustment with test gas
    Measuring distance
    See dimensional drawings
    Accuracy
    Pressure sensor1 %
    Temperature sensor1 %
    Process temperature
    HCl+130 °C ... +430 °C
    NH3+300 °C ... +430 °C
    Process pressure
    –120 hPa ... 200 hPa
    Dust load
    ≤ 30 g/m³
    Electrical safetyCE
    Enclosure rating
    IP65
    Dimensions (W x H x D)
    Dimensions may vary. For details, see the dimensional drawings.
    Weight
    See dimensional drawings
    Material in contact with mediaStainless steel 1.4571, stainless steel 1.4539, ceramics, PTFE
    Power supply
    Voltage150 V / 230 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 150 W
    Auxiliary gas connections
    Test gasClamp connection 1/4″
    Integrated components

    Pressure sensor

    PT1000 temperature sensor

    Heating of optical surfaces

  • Reflector unit (cross-duct version)

    Reflector unit (cross-duct version)

    DescriptionReflector unit with hollow triple reflector
    Measuring distance
    0.25 m ... 6 m
    Flange - flange distance minus 2 x flange length
    Process temperature
    ≤ +250 °C
    From 200 °C with heated purge air
    Process pressure
    –60 hPa ... 30 hPa
    Depending on purge air supply
    Dust load
    ≤ 3 g/m³
    Based on a 1 m measuring distance, depending on application
    Electrical safetyCE
    Enclosure rating
    IP65
    Dimensions (W x H x D)
    291 mm x 280 mm x 161 mm (for details see dimensional drawings)
    Weight
    8.5 kg
  • AWE control unit; sheet steel housing

    AWE control unit; sheet steel housing

    DescriptionThe control unit serves as the human machine interface and is responsible for data processing and output as well as control and monitoring functions.
    Electrical safetyCE
    Enclosure rating
    IP65
    Analog outputs3 outputs:
    0/4 ... 20 mA, 500 Ω
    Electrically isolated
    Analog inputs2 inputs:
    0 ... 20 mA, 100 Ω
    For gas temperature and gas pressure
    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
    Communication interface

    Serial

    PROFIBUS DP

    CAN bus

    RemarkOnly for HF
    Type of fieldbus integrationRS-232
    FunctionProprietary service interface
    Internal system bus
    Number1
    Indication
    LC display
    Status LEDs: "Operation", "Service", "Warning" and "Malfunction"
    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 (for details see dimensional drawings)
    Weight
    ≤ 4.7 kg
    Power supply
    Voltage115 V / 230 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 50 W
  • AWE control unit; cast metal enclosure

    AWE control unit; cast metal enclosure

    DescriptionThe control unit serves as the human machine interface and is responsible for data processing and output as well as control and monitoring functions.
    Electrical safetyCE
    Enclosure rating
    IP67
    Analog outputs3 outputs:
    0/4 ... 20 mA, 500 Ω
    Electrically isolated
    Analog inputs2 inputs:
    0 ... 20 mA, 100 Ω
    For gas temperature and gas pressure
    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
    Communication interface

    Serial

    PROFIBUS DP

    CAN bus

    RemarkOnly for HF
    Type of fieldbus integrationRS-232
    FunctionProprietary service interface
    Internal system bus
    Number1
    Indication
    LC display
    Status LEDs: "Operation", "Service", "Warning" and "Malfunction"
    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 (for details see dimensional drawings)
    Weight
    8.6 kg
    Power supply
    Voltage115 V / 230 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 50 W
  • GM700-EX3G control unit

    GM700-EX3G control unit

    DescriptionThe control unit serves as the human machine interface and is responsible for data processing and output as well as control and monitoring functions.
    Electrical safetyCE
    Enclosure rating
    IP65
    Analog outputs3 outputs:
    0/4 ... 20 mA, 500 Ω
    Electrically isolated
    Analog inputs2 inputs:
    0 ... 20 mA, 100 Ω
    For gas temperature and gas pressure
    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
    Communication interfaceSerial
    Type of fieldbus integrationRS-232
    FunctionProprietary service interface
    Number1
    Indication
    LC display
    Status LEDs: "Operation", "Service", "Warning" and "Malfunction"
    Input

    Arrow keys

    Functional keys

    OperationMenu-driven operation via LC-display and membrane keyboard
    ModelSteel sheet enclosure
    Dimensions (W x H x D)
    Control unit300 mm x 483 mm x 138 mm (for details see dimensional drawings)
    Ex pz control unit FS840129 mm x 122 mm x 120 mm (for details see dimensional drawings)
    Weight
    ≤ 16 kg
    Power supply
    Voltage230 V
    Frequency50 Hz
    Power consumption≤ 75 W
  • Connection unit

    Connection unit

    DescriptionFor extending the internal CAN bus connection with a cable provided by the customer
    Electrical safetyCE
    Enclosure rating
    IP66
    Dimensions (W x H x D)
    175 mm x 110.5 mm x 175 mm (for details see dimensional drawings)
    Weight
    3 kg
    Power supply
    Voltage115 V / 230 V
    Frequency50 Hz / 60 Hz
    Integrated componentsOn-board 24 V power supply for the sender/receiver unit
  • Purge air fixture

    Purge air fixture

    DescriptionFlange fixture for connections for purge air hose, temperature and pressure sensor
    Electrical safetyCE
    Dimensions (W x H x D)
    309 mm x 364 mm x 242 mm (for details see dimensional drawings)
    Weight
    9.6 kg
    Auxiliary gas connections
    Purge airHose nozzle 40 mm
    Electrical connections

    Flow monitor

    PT1000 temperature sensor

    Integrated components

    Flow monitor for purge air monitoring

    Pressure sensor (only for sender/receiver unit)

    Temperature sensor (only for sender/receiver unit)

  • Purge air attachment, Ex version, passive

    Purge air attachment, Ex version, passive

    DescriptionFlange fixture for connections for purge air hose and purge air monitoring
    Electrical safetyCE
    Dimensions (W x H x D)
    254 mm x 269 mm x 242 mm (for details see dimensional drawings)
    Weight
    7 kg
    Auxiliary gas connections
    Purge airHose nozzle 40 mm
  • Pressure and temperature sensor (cross-duct version)

    Pressure and temperature sensor (cross-duct version)

    DescriptionPressure and temperature sensor with DN40 / PN40 mounting flange
    Accuracy
    Pressure sensor1 %
    Temperature sensor1 %
    Process temperature
    ≤ +500 °C
    Electrical safetyCE
    Dimensions (W x H x D)
    Dimensions may vary. For details, see the dimensional drawings.
    Immersion depth
    PT1000 temperature sensor500 mm
    1,000 mm
    1,400 mm
    MaterialStainless steel 1.4571, steel ST37
    Scope of delivery

    Connecting cable for temperature sensor, 5 m

    Connecting hose for pressure sensor, 5 m

    Flange cover, including seal and screws

  • SLV4-2 purge air unit, 2BH1300, 3-ph

    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
    Electrical safetyCE
    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 currentΔ: 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
All technical data can be found accompanying the individual product

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