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GM700

Efficient process analysis – even under difficult conditions
  • 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
    Your Benefits
    • In-situ measurement directly in the process for accurate measured values
    • Probe and cross-duct models 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
    GM700
    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.

  • 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
      Measured valuesNH3, HF, HCl, H2O
      Performance-tested measurandsHF
      Measurement principlesDiode laser spectroscopy (TDLS)
      Length of measuring path

      Cross-duct version: 0.5 m ... 6 m
      Depending on application

      Open measuring probe (GMP): 0.25 m ... 1.5 m
      Depending on application

      Gas-testable measuring probe (GPP): 0.227 m ... 0.977 m
      Depending on application

      Measuring ranges
      NH30 ... 25 ppm / 0 ... 4,000 ppm
      HF0 ... 5 ppm / 0 ... 2,000 ppm
      HCl0 ... 10 ppm / 0 ... 3,000 ppm

      Measuring ranges refer to 1 m measuring path

      Measuring ranges depend on application and device version

      Dual measuring ranges

      HCl / H2O

      0 ... 10 ppm / 0 ... 3,000 ppm (HCl)

      0 ... 50 Vol.-% / 0 ... 100 Vol.-% (H2O)

      NH3 / H2O

      0 ... 25 ppm / 0 ... 4,000 ppm (NH3)

      0 ... 5 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
      Only suitability-tested in the cross-duct type
      Response time (t90)1 s ... 360 s
      Adjustable
      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–40 °C ... +50 °C
      Depends on parameterization, temperature change max. ±10 °C/h
      Storage temperature–40 °C ... +55 °C
      Ambient humidity≤ 85 %
      Relative humidity, non-condensing
      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

      Only for HF

      Electrical safetyCE
      Test functionsAutomatic check cycle for zero and span point (only for NH3 and HCl)
    • Sender/receiver unit
      DescriptionAnalyzer unit of the measuring system
      Enclosure ratingIP65
      Dimensions (W x H x D)239 mm x 272 mm x 330 mm
      Weight13 kg
      Power supply
      VoltageSupply via evaluation unit: 24 V DC
      Auxiliary gas connections

      Test gas: Swagelok 1/4″

      Purge gas: Swagelok 1/4″

    • Open measuring probe (GMP)
      DescriptionMeasuring probe in open design with integrated purge air control system
      Process temperature–40 °C ... +250 °C
      Process pressureDepending on purge air supply
      Process gas humidityNon-condensing
      Enclosure ratingIP65
      Dimensions (W x H x D)See dimensional drawings
      Weight25 kg
      Power supply
      VoltageSupply via evaluation unit: 24 V DC
      Integrated components

      Flow monitor (monitoring of purge air feed)

      PT1000 temperature sensor (measurement of gas temperature)

      Pressure sensor

    • Gas-testable measuring probe (GPP)
      DescriptionMeasuring probe with gas permeable filter element for adjustment with test gas
      Process temperature

      HCl: +130 °C ... +430 °C

      NH3: +300 °C ... +430 °C

      Process pressure120 hPa
      Enclosure ratingIP65
      Dimensions (W x H x D)See dimensional drawings
      Weight45 kg
      Power supply
      Voltage150 V / 230 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 150 W
      Integrated components

      PT1000 temperature sensor (measurement of gas temperature)

      Pressure sensor

      Heating of optical interfaces

    • Reflector unit (cross-duct version)
      DescriptionReflector unit with hollow triple reflector
      Process temperature≤ +200 °C
      Process gas humidityNon-condensing
      Enclosure ratingIP65
      Dimensions (W x H x D)291 mm x 280 mm x 161 mm
      Weight7 kg
    • GM700 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 ratingIP 65 / NEMA 4x
      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
      Digital inputs3 inputs:
      + 24 V
      Serial
      Type of fieldbus integrationRS-232
      FunctionProprietary service interface
      PROFIBUS DP
      RemarkOnly for HF
      CAN bus
      FunctionInternal system bus
      Indication

      LC display

      Status LEDs: "Operation", "Service", "Warning" and "Malfunction"

      Input

      Arrow keys

      Functional keys

      ModelSteel sheet enclosure
      Dimensions (W x H x D)200 mm x 346 mm x 97.5 mm
      Weight≤ 4.7 kg
      Power supply
      Voltage115 V / 230 V
      Frequency50 Hz / 60 Hz
      Power consumption≤ 50 W
    • GM700 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 ratingIP 67/NEMA 6
      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
      Digital inputs3 inputs:
      + 24 V
      Serial
      Type of fieldbus integrationRS-232
      FunctionProprietary service interface
      PROFIBUS DP
      RemarkOnly for HF
      CAN bus
      FunctionInternal system bus
      Indication

      LC display

      Status LEDs: "Operation", "Service", "Warning" and "Malfunction"

      Input

      Arrow keys

      Functional keys

      ModelCast metal enclosure
      Dimensions (W x H x D)289 mm x 370 mm x 138 mm
      Weight≤ 8.6 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)175 mm x 110.5 mm x 175 mm
      Weight3 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
      DescriptionFixture to flanges with connections for purge air hose and temperature sensor
      Dimensions (W x H x D)420 mm x 429 mm x 220 mm
      Weight7 kg
      Auxiliary gas connectionsPurge air: Hose nozzle 40 mm
      Electrical connections

      Flow monitor

      PT1000 temperature sensor

    • SLV4-2 purge air unit, 2BH1300, 3-ph
      DescriptionUnit to provide dust-free air for flushing of optical surfaces
      Gas flow rate38 m³/h ... 63 m³/h
      At 30 hPa counter pressure, depending on low pressure inside the filter
      Ambient temperature–20 °C ... +40 °C
      Enclosure ratingIP 54
      Dimensions (W x H x D)550 mm x 550 mm x 258 mm (for details see dimensional drawings)
      Weight18 kg
      Power supply
      Three-phase current

      3-phase, Δ: 200 ... 240 V, 50 Hz, 2.6 A, 350 W

      3-phase, Δ: 220 ... 275 V, 60 Hz, 2.3 A, 450 W

      3-phase, Y: 345 ... 415 V, 50 Hz, 1.5 A, 350 W

      3-phase, Y: 380 ... 480 V, 60 Hz, 1.3 A, 450 W

      Auxiliary gas connectionsPurge air: 40 mm
      Test functionsPressure switch (switching point –35 hPa)
      Integrated components2-step air filter, type Europiclon, dust capacity 200 g
    • SLV4-2 purge air unit, 2BH1300, 3-ph
      DescriptionUnit to provide dust-free air for flushing of optical surfaces
      Gas flow rate38 m³/h ... 63 m³/h
      At 30 hPa counter pressure, depending on low pressure inside the filter
      Ambient temperature–40 °C ... +55 °C
      Enclosure ratingIP 54
      Dimensions (W x H x D)550 mm x 550 mm x 258 mm (for details see dimensional drawings)
      Weight18 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 connectionsPurge air: 40 mm
      Test functionsPressure switch (switching point –35 hPa)
      Integrated components2-step air filter, type Europiclon, dust capacity 200 g

    Technical drawings

    GM700 connection unit
    GM700 sender/receiver unit
    GM700 reflector unit
    gas-testable measuring probe (GPP)
    open measuring probe (GMP)
    evaluation unit, cast metal enclosure
    SLV4-2 purge air unit, 2BH1300
    evaluation unit, steel sheet enclosure
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