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In-situ gas analyzers GM32

In-situ gas analyzers GM32

In-situ gas analyzers GM32 Measure aggressive gases directly and quickly – even in ATEX zones

Product Data Sheet
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Overview

Measure aggressive gases directly and quickly – even in ATEX zones


The GM32 in-situ gas analyzer measures SO2, NO, NO2 and NH3, pressure and temperature in the gas duct. Direct, fast and without gas sampling and transport. This means that control systems work directly with almost uncompromised values. Due to self-monitoring, the measured values are reliable. In case of a malfunction, an early warning will be shown. For emission measurement of SO2 and NO, the GM32 is tested for suitability according to European standard EN 15267. An Ex-type with extensive safety functions and sophisticated system technology is also available.


At a glance

  • Direct, fast in-situ measurement

  • No gas sampling, no gas transport, no gas conditioning

  • Up to four measurands at the same time, plus process temperature and pressure

  • DOAS evaluation methods

  • Numerous independent measuring ranges with consistent accuracy

  • Automated self-test function (QAL3) without test gases

  • Overpressure encapsulated type for Ex-zone 2

Applications

Fields of applications

  • For monitoring and control in flue gas purification, such as denitrification plants, desulfurization plants and converters

  • Emissions monitoring according to EU directives or local regulations

  • Monitoring of landfill gases

  • Monitoring tasks, for example, in nitric acid and ammonia production processes


Technical overview

 

  • GM32 system; standard and Ex-version

    DescriptionIn-situ gas analyzer for emission monitoring and process measurement
    Measured valuesNO, NO2, NH3, SO2
    Performance-tested measurandsNO, SO2
    Measurement principlesDifferential optical absorption spectroscopy (DOAS)
    Measuring ranges
    NH30 ... 30 ppm / 0 ... 2,600 ppm
    NO0 ... 40 ppm / 0 ... 1,900 ppm
    NO20 ... 50 ppm / 0 ... 1,000 ppm
    LowNO20 ... 20 ppm / 0 ... 1,000 ppm
    SO20 ... 32 ppm / 0 ... 7,000 ppm

    		Measuring ranges refer to 1 m measuring path

    		Measuring ranges depend on application and device version
    Certified measuring ranges
    NO0 ... 70 mg/m³ / 0 ... 700 mg/m³ / 0 ... 1,302 mg/m³
    SO20 ... 75 mg/m³ / 0 ... 1,000 mg/m³ / 0 ... 2,500 mg/m³

    		With an active measuring path length of 1.86 m (cross- duct), 1.25 m (open path measuring probe) or 1 m (open path measuring probe, LowNO2)

    		The gas-testable measuring probe (GPP) is not TUV approved
    Response time (t90)
    Open measuring probe (GMP)≥ 5 s
    Gas-testable measuring probe (GPP)≥ 120 s
    Cross-duct version≥ 5 s
    Response time adjustable
    Accuracy
    NH3± 2 %
    NO± 2 %
    NO2± 2 %
    SO2± 2 %
    Relative to the smallest measuring range
    Ambient temperature

    		–20 °C ... +55 °C
    Temperature change maximum ±10 °C/h
    Storage temperature

    		–20 °C ... +55 °C
    Temperature change maximum ±10 °C/h
    Ambient humidity

    		≤ 95 %
    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

    MCERTS

    GOST

    Ex-approvals
    IECExEx pzc op is [ia] IIC T3 Gc
    ATEXII 3G Ex pzc op is [ia] IIC T3 Gc
    Electrical safetyCE
    Mounting

    Mounting flange, DN125, PN6

    Mounting flange, ANSI, 5″

    Test functions

    Internal zero point check

    Check cycle for zero and span point according to QAL3

    Options

    SCU control unit (for non-hazardous areas only)

    Multi range calibration (additional measuring ranges for one component)

    Extended gas temperature range up to 550 °C or 650 °C

    LowNO2

  • Sender/receiver unit; standard version

    DescriptionAnalyzer unit of the measuring system
    Electrical safetyCE
    Enclosure rating

    		IP65 / IP69K
    OperationVia integrated control unit
    Dimensions (W x H x D)

    		315 mm x 580 mm x 359 mm (for details see dimensional drawings)
    Weight

    		20 kg
    Power supply
    Voltage24 V DC
    VoltageSupply via connection unit
    Power consumption≤ 36 W

  • Sender/receiver unit; Ex-version

    DescriptionAnalyzer unit of the measuring system
    Electrical safetyCE
    Enclosure rating

    		IP65 / IP69K
    OperationVia integrated control unit
    Dimensions (W x H x D)

    		315 mm x 910 mm x 410 mm (for details see dimensional drawings)
    Weight

    		20 kg
    Power supply
    Voltage24 V DC
    VoltageSupply via connection unit
    Power consumption≤ 36 W

  • 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

    		≤ +550 °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
    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

    Pressure sensor (Not for Ex-version)

    PT1000 temperature sensor (not for Ex-version)

  • 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
    With ceramic filter≤ +430 °C
    Brief (max. 30 min.) up to 550 °C. At temperatures higher than 430 °C, reliable output of measured values can no longer be guaranteed.
    NH3 measurement with ceramic filter+300 °C ... +430 °C
    Brief (max. 30 min.) up to 550 °C. At temperatures higher than 430 °C, reliable output of measured values can no longer be guaranteed.
    With Teflon filter≤ +200 °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
    Voltage115 V AC, ± 10 %

    		230 V AC, ± 10 %
    Frequency50 Hz / 60 Hz
    Power consumption≤ 150 VA
    Auxiliary gas connections
    Test gasClamp connection 1/4″
    Integrated components

    Pressure sensor

    PT1000 temperature sensor

    Heating of optical surfaces

  • Reflector unit (cross-duct version)

    DescriptionReflector unit with glass triple reflector
    Measuring distance
    Cross-duct version0.25 m ... 12 m
    Flange - flange distance minus 2 x flange length
    Process temperature

    		≤ +550 °C
    Versions for higher temperatures on request
    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 / IP69K
    Dimensions (W x H x D)

    		291 mm x 280 mm x 161 mm (for details see dimensional drawings)
    Weight

    		8.5 kg

  • Connection unit; standard version

    DescriptionServes for connection of power supply, data and signal cabling provided by the customer
    Electrical safetyCE
    Enclosure rating

    		IP65 / IP69K
    Analog outputs2 outputs:
    0/4 ... 22 mA, 500 Ω
    Per module, extendable up to eight outputs
    Analog inputs2 inputs:
    0/4 ... 22 mA, 100 Ω
    Digital outputs4 outputs:
    48 V AC/DC, 0.5 A, 25 W
    Digital inputs4 inputs:
    3.9 V, 4.5 mA, 0.55 W
    Per module, extendable up to eight inputs
    Modbus✔ , ✔
    Type of fieldbus integrationTCP

    		RTU RS-485 (via optional interface module)
    CAN bus✔
    FunctionInternal system bus
    Ethernet✔
    FunctionConnection to SOPAS ET software or OPC server
    Dimensions (W x H x D)

    		450 mm x 424 mm x 158 mm (for details see dimensional drawings)
    Weight

    		16 kg
    Power supply
    Voltage100 V AC ... 250 V AC, ± 10 %
    Frequency50 Hz / 60 Hz
    Power consumption≤ 260 VA

  • Connection unit; Ex-version

    DescriptionServes for connection of power supply, data and signal cabling provided by the customer
    Electrical safetyCE
    Enclosure rating

    		IP65 / IP69K
    Analog outputs2 outputs:
    0/4 ... 22 mA, 500 Ω
    Per module, extendable up to eight outputs
    Analog inputs2 inputs:
    0/4 ... 22 mA, 100 Ω
    Digital outputs4 outputs:
    48 V AC/DC, 0.5 A, 25 W
    Digital inputs4 inputs:
    3.9 V, 4.5 mA, 0.55 W
    Per module, extendable up to eight inputs
    Modbus✔ , ✔
    Type of fieldbus integrationTCP

    		RTU RS-485 (via optional interface module)
    CAN bus✔
    FunctionInternal system bus
    Ethernet✔
    FunctionConnection to SOPAS ET software or OPC server
    Dimensions (W x H x D)

    		679 mm x 630 mm x 158 mm (for details see dimensional drawings)
    Weight

    		16 kg
    Power supply
    Voltage100 V AC ... 230 V AC, ± 10 %
    Frequency50 Hz / 60 Hz
    Power consumption≤ 260 VA

  • Purge air fixture; sender/receiver unit

    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

    Purge air unit low-pressure monitor

    PT1000 temperature sensor

    Pressure sensor

    Integrated components

    Flow monitor for purge air monitoring

    Pressure sensor

  • Purge air fixture; reflector unit

    DescriptionFlange fixture for connections for purge air hose and purge air monitoring
    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 connectionsPurge air unit low-pressure monitor
    Integrated componentsFlow monitor for purge air monitoring

  • 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

    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 AC, 50 Hz, 2,6 A, 400 VA

    		Y: 345 ... 415 V AC, 50 Hz, 1,5 A, 400 VA

    		Δ: 200 ... 275 V AC, 60 Hz, 2,6 A, 500 VA

    		Y: 380 ... 480 V AC, 60 Hz, 1,5 A, 500 VA

    		Δ: 270 ... 330 V AC, 50 Hz, 2,0 A, 400 VA

    		Y: 465 ... 570 V AC, 50 Hz, 1,16 A, 400 VA

    		Δ: 290 ... 360 V AC, 60 Hz, 2,1 A, 500 VA

    		Y: 500 ... 600 V AC, 60 Hz, 1,26 A, 500 VA

    		Δ: 230 V AC, 50 Hz, 2,7 A, 370 VA

    		Δ: 115 V AC, 60 Hz, 3,0 A, 450 VA

    		Δ: 220 ... 270 V AC, 50 Hz, 2,5 A, 400 VA

    		Y: 380 ... 465 V AC, 50 Hz, 1,45 A, 400 VA

    		Δ: 240 ... 290 V AC, 60 Hz, 2,6 A, 500 VA

    		Y: 415 ... 500 V AC, 60 Hz, 1,55 A, 500 VA
    Auxiliary gas connections
    Purge air40 mm
    Test functionsPressure switch (switching point –35 hPa)
    Integrated components2-step air filter, type Europiclon, dust capacity 200 g


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