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In-situ gas analyzers
GM901

CO measurement for emission monitoring and process control

Your Benefits

  • Measurement results in real time due to in-situ measurement
  • Fast and simple installation and commissioning
  • Easy, user-friendly operation
  • Economical due to low maintenance

Overview

CO measurement for emission monitoring and process control

The GM901 gas analyzer is available as a cross-duct or probe type. As a result, it is suited to a broad range of applications – even for difficult measuring tasks such as high dust loads, overpressure, critical flow profiles, or high measuring gas concentrations.

At a glance
  • Representative measurement along the duct diameter
  • Operation via evaluation unit
  • Short response times
  • Verifiable with gas-filled cell, gas-testable probe with test gas

Accessories

Applications

Service & Support

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.

  • GM901 cross-duct system

    GM901 cross-duct system

    DescriptionCross-duct version
    Measured valuesCO
    Measurement principlesGas filter correlation
    Length of measuring path
    0.5 m ... 8 m
    Measuring ranges
    CO0 ... 500 ppm / 0 ... 20,000 ppm
    Relative to 1 m measuring path
    Response time (t90)
    5 s ... 360 s
    Accuracy
    ± 5 %
    Of measuring range full scale
    Process temperature
    ≤ +250 °C
    With extended calibration≤ +430 °C
    Process pressure
    ≤ 30 hPa
    Depending on purge air supply
    Process gas humidity
    Non-condensing
    Ambient temperature
    –20 °C ... +55 °C
    ConformitiesTUEV type-examination
    Electrical safetyCE
    Enclosure rating
    IP65
    Power supply
    Voltage115 V / 230 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 75 W
    Test functionsManual span check with gas-filled cell
  • GM901 Measuring probe system

    GM901 Measuring probe system

    DescriptionMeasuring probe version
    Measured valuesCO
    Measurement principlesGas filter correlation
    Measuring ranges
    CO0 ... 250 ppm / 0 ... 10,000 ppm
    Relative to 1 m measuring path
    Response time (t90)
    5 s ... 360 s
    Accuracy
    ± 5 %
    Of measuring range full scale
    Process temperature
    Open measuring probe (GMP)≤ +250 °C
    With extended calibration≤ +430 °C
    Gas-testable measuring probe (GPP)≤ +220 °C
    Process pressure
    ≤ 120 hPa
    Process gas humidity
    Non-condensing
    Ambient temperature
    –20 °C ... +55 °C
    Conformities

    TUEV type-examination

    U.S. EPA conform

    Electrical safetyCE
    Enclosure rating
    IP65 / NEMA 4
    Dimensions (W x H x D)
    367 mm x 418 mm x 1,414 mm
    For details see dimensional drawings
    MountingSingle mounting point on the duct
    Power supply
    Voltage115 V / 230 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 60 W
    Test functionsManual span check with gas-filled cell
  • Sender

    Sender

    DescriptionSender unit of the cross-duct measuring system
    Dimensions (W x H x D)
    150 mm x 169 m x 240 m
    Weight
    3 kg
    Including purge air fixture
  • Receiver

    Receiver

    DescriptionReceiver unit of the cross-duct measuring system
    Dimensions (W x H x D)
    150 mm x 169 m x 404 m
    Weight
    3 kg
    Including purge air fixture
  • GM901 control unit, sheet steel housing

    GM901 control unit, sheet steel housing

    DescriptionThe control unit serves as the HMI and is responsible for data processing, data output, and control and monitoring functions
    Enclosure rating
    IP65 / NEMA 4x
    Analog outputs1 output:
    0/4 ... 20 mA, 500 Ω
    Electrically isolated
    Analog inputs1 input:
    0 ... 20 mA, 100 Ω
    Digital outputs2 relay contacts:
    + 150 V AC, 1 A, 60 W / 125 V DC, 1 A, 30 W
    Digital inputs1 input:
    + 5 V, 2 mA
    Serial
    Type of fieldbus integrationRS-232
    FunctionProprietary service interface
    PROFIBUS DP
    Type of fieldbus integrationRS-485
    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
    4.3 kg
    Power supply
    Voltage115 V / 230 V
    Frequency50 Hz / 60 Hz
    Power consumption≤ 50 W
  • Connection unit

    Connection unit

    DescriptionFor extending the internal CAN bus connection with a cable provided by the customer
    Dimensions (W x H x D)
    175 mm x 110.5 mm x 175 mm
    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
  • 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
    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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