In-situ gas analyzers
GM32
Measure aggressive gases directly and quickly – even in ATEX zones
Your Benefits
- Unaltered measured values in real time without altering the gas composition
- Short-term process deviations are detected
- Representative measurement by selection of cross-duct or measuring probe type
- Fast on-site service due to modular design
- Long maintenance-free intervals
- Cost-effective in-situ gas analyzer — ATEX type also available
- 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, NH33
Overview
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. 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.
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
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.
- GM32 system; standard and Ex-version
GM32 system; standard and Ex-version
Description In-situ gas analyzer for emission monitoring and process measurement 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 LowNO2 0 ... 20 ppm / 0 ... 1,000 ppm SO2 0 ... 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 NO 0 ... 70 mg/m³ / 0 ... 700 mg/m³ / 0 ... 1,302 mg/m³ SO2 0 ... 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 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 ≤ 95 %
Relative humidity; non-condensingConformities 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 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
- GM32 TRS–PE system
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 ≤ 95 %
Relative humidity; non-condensingElectrical safety CE Mounting Mounting flange, DN125, PN6
Mounting flange, ANSI, 5″
Test functions Internal zero and reference point check Options SCU control unit
- Sender/receiver unit; standard version
Sender/receiver unit; standard version
Description Analyzer unit of the measuring system Electrical safety CE Enclosure rating IP65 / IP69K Operation Via 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 Voltage 24 V DC Voltage Supply via connection unit Power consumption 36 W
- Sender/receiver unit; Ex-version
Sender/receiver unit; Ex-version
Description Analyzer unit of the measuring system Electrical safety CE Enclosure rating IP65 / IP69K Operation Via 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 Voltage 24 V DC Voltage Supply via connection unit Power consumption 36 W
- Open measuring probe (GMP)
Open measuring probe (GMP)
Description Measuring probe in open design with integrated purge air control system Measuring distance See dimensional drawings Accuracy Pressure sensor 1 % Temperature sensor 1 % Process temperature ≤ +550 °C Process pressure –60 hPa ... 30 hPa
Depending on purge air supplyDust load ≤ 3 g/m³
Based on a 1 m measuring distance, depending on applicationElectrical safety CE Dimensions (W x H x D) Dimensions may vary. For details, see the dimensional drawings. Weight See dimensional drawings Material in contact with media Stainless steel 1.4571, stainless steel 1.4539 Power supply Voltage Supply via sender/receiver unit Auxiliary gas connections Purge air Hose 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)
Gas-testable measuring probe (GPP)
Description Measuring probe with gas permeable filter element for adjustment with test gas Measuring distance See dimensional drawings Accuracy Pressure sensor 1 % Temperature sensor 1 % 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 safety CE 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 media Stainless steel 1.4571, stainless steel 1.4539, ceramics, PTFE Power supply Voltage 115 V AC / 230 V AC Frequency 50 Hz / 60 Hz Power consumption ≤ 150 W Auxiliary gas connections Test gas Clamp connection 1/4″ Integrated components Pressure sensor
PT1000 temperature sensor
Heating of optical surfaces
- Reflector unit
Reflector unit
Description Reflector unit with glass triple reflector Measuring distance Cross-duct version 0.25 m ... 12 m
Flange - flange distance minus 2 x flange lengthProcess temperature ≤ +550 °C
Versions for higher temperatures on requestProcess pressure –60 hPa ... 30 hPa
Depending on purge air supplyDust load ≤ 3 g/m³
Based on a 1 m measuring distance, depending on applicationElectrical safety CE 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
Connection unit; standard version
Description Serves for connection of power supply, data and signal cabling provided by the customer Electrical safety CE Enclosure rating IP65 / IP69K 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 inputsCommunication interface Modbus
CAN bus
Ethernet
Type of fieldbus integration TCP RTU RS-485 (via optional interface module) Function Internal system bus Connection to SOPAS ET software or OPC server Number 1 Dimensions (W x H x D) 450 mm x 424 mm x 158 mm (for details see dimensional drawings) Weight 16 kg Power supply Voltage 100 ... 250 V AC Frequency 50 Hz / 60 Hz Power consumption ≤ 260 W
- Connection unit; Ex-version
Connection unit; Ex-version
Description Serves for connection of power supply, data and signal cabling provided by the customer Electrical safety CE Enclosure rating IP65 / IP69K 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 inputsCommunication interface Modbus
CAN bus
Ethernet
Type of fieldbus integration TCP RTU RS-485 (via optional interface module) Function Internal system bus Connection to SOPAS ET software or OPC server Number 1 Dimensions (W x H x D) 679 mm x 630 mm x 158 mm (for details see dimensional drawings) Weight 16 kg Power supply Voltage 100 ... 230 V AC Frequency 50 Hz / 60 Hz Power consumption ≤ 260 W
- Purge air fixture; sender/receiver unit
Purge air fixture; sender/receiver unit
Description Flange fixture for connections for purge air hose, temperature and pressure sensor Electrical safety CE 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 air Hose 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
Purge air fixture; reflector unit
Description Flange fixture for connections for purge air hose and purge air monitoring Electrical safety CE 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 air Hose nozzle 40 mm Electrical connections Purge air unit low-pressure monitor Integrated components Flow monitor for purge air monitoring
- Pressure and temperature sensor (cross-duct version)
Pressure and temperature sensor (cross-duct version)
Description Pressure and temperature sensor with DN40 / PN40 mounting flange Accuracy Pressure sensor 1 % Temperature sensor 1 % Process temperature ≤ +500 °C Electrical safety CE Dimensions (W x H x D) Dimensions may vary. For details, see the dimensional drawings. Immersion depth PT1000 temperature sensor 500 mm 1,000 mm 1,400 mm Material Stainless 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
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 Electrical safety CE 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
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 Electrical safety CE 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