GM32 – NO, NO2, NH3, SO2
Measure aggressive gases directly and quickly — even in ATEX zones – The GM32 in-situ gas analyzer measures SO2, NO, NO2 and NH3, as well as TRS components in Kraft pulp processes including pressure and temperature in the gas duct. Direct, fast and without gas sampling and transport. This means control systems are able to work with actual values in real time. Thanks to self-monitoring the measured value are reliable at any time. In case of a malfunction an early warning will be shown.
Categories: Analyzer, Emission Gas Measurement, In Situ Type, Sick
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For emission measurement of SO2 and NO, GM32 is tested for suitability according to European standard EN 15267. An ATEX version with comprehensive safety functions and sophisticated system technology is also available, as well as the GM32 TRS-PE (PE = Pulp Emission) for TRS measurement in Kraft pulp processes.
Overview
At a glance
- Direct, fast in-situ measurement
- No gas sampling, no gas transport, no gas conditioning
- Up to eight measuring components at the same time, plus process temperature and pressure
- DOAS and CDE evaluation process
- Numerous independent measuring ranges with consistent accuracy
- Automatic self-test function (QAL3) without test gases
- Overpressure encapsulated design for ATEX Zones 1 and 2
Your Benefits
- Measured values in real time without altering the gas composition
- Short-term process deviations are detected
- Representative measurement byselection of cross-duct or measuring probe versions
- Fast on-site service due to modular design
- Long maintenance-free intervals
- Cost-effective in-situ gas analyzer — also in ATEX design
- Low cost of installation and operation, no test gases required
- Complete emissions measurement in Kraft pulp process by way of simultaneous measurement of TRS components plus SO2, NO, NH3
Technical Specifications
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GM32 system, standard and Ex-version
Description Type approved in-situ gas analyzer for emission monitoring and process control Measured values NO, NO2, NH3, SO2 Performance-tested measurands NO, SO2 Measurement principles Differential optical absorption spectroscopy (DOAS) Measuring ranges NH3 0 … 30 ppm / 0 … 2,600 ppm NO 0 … 40 ppm / 0 … 1,900 ppm NO2 0 … 50 ppm / 0 … 1,000 ppm SO2 0 … 15 ppm / 0 … 7,000 ppm LowNO2 0 … 15 ppm / 0 … 1,000 ppm Measuring ranges refer to 1 m measuring path Measuring ranges depend on application and device version
Certified measuring ranges NO 0 … 70 mg/m³ / 0 … 700 mg/m³ SO2 0 … 75 mg/m³ / 0 … 1,000 mg/m³ With an active measuring path length of 1.86 m (cross- duct) or 1.25 m (open path measuring probe) 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 adjustableAccuracy NH3 ± 2 % NO ± 2 % NO2 ± 2 % SO2 ± 2 %
Relative to the smallest measuring rangeAmbient temperature –20 °C … +55 °C
Temperature change maximum ±10 °C/hStorage temperature –20 °C … +55 °C
Temperature change maximum ±10 °C/hAmbient humidity ≤ 96 %
Relative humidity, bedewing of optical surfaces not permittedConformities 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 IECEx Ex pzc op is [ia] IIC T3 Gc ATEX II 3G Ex pzc op is [ia] IIC T3 Gc Electrical safety CE Enclosure rating Standard IP65, IP69K Ex-version IP65 Operation Via integrated operating unit or SOPAS ET software 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
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GM32 TRS–PE system
Description In-situ gas analyzer for TRS monitoring in the Kraft pulping process Measured values NO, NH3, SO2, CH3SH, (CH3)2S, (CH3)2S2, H2S, TRS Measurement principles Chemometrical data evaluation (CDE) Measuring ranges NH3 0 … 35 ppm / 0 … 50 ppm NO 0 … 40 ppm / 0 … 150 ppm SO2 0 … 15 ppm / 0 … 35 ppm H2S 0 … 35 ppm CH3SH 0 … 25 ppm (CH3)2S 0 … 20 ppm (CH3)2S2 0 … 15 ppm TRS 0 … 70 ppm Measuring ranges refer to 1 m measuring path Measuring ranges depend on application and device version
TRS = H2S + CH3SH (as H2S equivalent)
For device variant 7: TRS = H2S + CH3SH + (CH3)2S + 2x (CH3)2S2
Other measuring ranges on request
Response time (t90) Gas-testable measuring probe (GPP) ≥ 120 s
Response time adjustableAccuracy NH3 ± 2 % NO ± 2 % SO2 ± 0.3 ppm … ± 2 % H2S ± 2 % CH3SH ± 2 % (CH3)2S ± 2 % (CH3)2S2 ± 2 % TRS ± 2 %
Relative to the smallest measuring rangeAmbient temperature –20 °C … +55 °C
Temperature change maximum ±10 °C/hFor device variant 7 +20 °C … +30 °C Storage temperature –20 °C … +55 °C
Temperature change maximum ±10 °C/hAmbient humidity ≤ 96 %
Relative humidity, bedewing of optical surfaces not permittedElectrical safety CE Enclosure rating IP65, IP69K Operation Via integrated operating unit or SOPAS ET software Test functions Internal zero and reference point check Options SCU control unit -
Sender/receiver unit, standard version
Description Analyzer unit of the measuring system Operation Via integrated operating unit Dimensions (W x H x D) 315 mm x 580 mm x 359 mm Weight 20 kg -
Sender/receiver unit, Ex-version
Description Analyzer unit of the measuring system Operation Via integrated operating unit Dimensions (W x H x D) 315 mm x 910 mm x 410 mm Weight 20 kg -
Open measuring probe (GMP)
Description Measuring probe in open design with integrated purge air control system Process temperature ≤ +550 °C Process pressure –60 hPa … 60 hPa
RelativeDimensions (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 (Not for Ex-version) PT1000 temperature sensor (not for Ex-version)
Flow monitor (monitoring of purge air feed, not for Ex version)
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Gas-testable measuring probe (GPP)
Description Measuring probe with gas permeable filter element for adjustment with test gas Process temperature With ceramic filter ≤ +430 °C With Teflon filter ≤ +200 °C Process pressure –60 hPa … 200 hPa
RelativeDimensions (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 / 230 V Frequency 50 Hz / 60 Hz Power consumption ≤ 150 W Auxiliary gas connections Integrated components Pressure sensor PT1000 temperature sensor
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Reflector unit
Description Reflector unit with glass triple reflector Process temperature ≤ +650 °C Process pressure –60 hPa … 200 hPa Dimensions (W x H x D) 291 mm x 280 mm x 161 mm Weight 9 kg -
Connection unit, standard version
Description Serves for connection of power supply, data and signal cabling provided by the customer Analog outputs 2 outputs:
0/4 … 22 mA, 500 Ω
Per module, extendable up to eight outputsAnalog inputs 2 inputs:
0/4 … 22 mA, 100 ΩDigital outputs 4 outputs:
+ 48 V AC/DC, 0.5 A, 25 WDigital inputs 4 inputs:
+ 3.9 V, 4.5 mA, 0.55 W
Per module, extendable up to eight inputsModbus ✔ Type of fieldbus integration TCP RTU RS-485 (via optional interface module)
CAN bus ✔ Function Internal system bus Ethernet ✔ Function Connection to SOPAS ET software or OPC server Dimensions (W x H x D) 450 mm x 424 mm x 158 mm Weight 16 kg Power supply Voltage 100 … 250 V Frequency 50 Hz / 60 Hz Power consumption ≤ 260 W -
Connection unit, Ex-version
Description Serves for connection of power supply, data and signal cabling provided by the customer Analog outputs 2 outputs:
0/4 … 22 mA, 500 Ω
Per module, extendable up to eight outputsAnalog inputs 2 inputs:
0/4 … 22 mA, 100 ΩDigital outputs 4 outputs:
+ 48 V AC/DC, 0.5 A, 25 WDigital inputs 4 inputs:
+ 3.9 V, 4.5 mA, 0.55 W
Per module, extendable up to eight inputsModbus ✔ Type of fieldbus integration TCP RTU RS-485 (via optional interface module)
CAN bus ✔ Function Internal system bus Ethernet ✔ Function Connection to SOPAS ET software or OPC server Dimensions (W x H x D) 679 mm x 630 mm x 158 mm Weight 16 kg Power supply Voltage 100 … 230 V Frequency 50 Hz / 60 Hz Power consumption ≤ 260 W -
Purge air fixture, sender/receiver unit
Description Fixture to flanges with connections for purge air and external cabling (only cross duct design) Dimensions (W x H x D) 320.9 mm x 360 mm x 220 mm For details see dimensional drawings Weight 7 kg Auxiliary gas connections Integrated components PT1000 temperature sensor (not for Ex-version) Flow monitor (monitoring of purge air feed, not for Ex version)
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Purge air fixture, reflector unit
Description Fixture to flanges with connections for purge air and external cabling (only cross duct design) Dimensions (W x H x D) 320.9 mm x 360 mm x 220 mm For details see dimensional drawings Weight 7 kg Auxiliary gas connections Integrated components Flow monitor (monitoring of purge air feed, not for Ex version) -
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 filterAmbient 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 -
SLV6-1 purge air unit, 2SH1300, ATEX 3G
Description Unit to provide dust-free air for flushing of optical surfaces, for potentially explosive atmospheres Gas flow rate 38 m³/h … 63 m³/h
At 30 hPa counter pressure, depending on low pressure inside the filterAmbient temperature –20 °C … +40 °C Ex-approvals ATEX Ex II 3G c T3 Enclosure rating IP54 Dimensions (W x H x D) 550 mm x 681 mm x 287 mm For details see dimensional drawings Weight 28 kg Power supply Three-phase current 3-phase: 230 V/400 V, 50 Hz 3-phase: 460 V, 60 Hz
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
- 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
- TRS emissions monitoring in the Kraft pulp industry
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