SICK GM35 In-Situ Gas Analyser (Gas Measurement for Combustion & Dehydration Processes)
In-Situ Gas Analysers
SICK GM35
The SICK GM35 in-situ gas analyser provides efficient control of combustion and drying processes – the gas analyser is made up of a sender/receiver unit, open measuring probe, gas-testable measuring probe and the cross-duct version also has a reflector unit.
The GM35 gas analyser measures CO2, H2O and CO, or N2O, as well as temperature and pressure quickly, reliably and economically.
As an in-situ gas analyser, the SICK GM35 detects gas components directly from the gas stream without the need for gas sampling. SICK gas detection equipment offers reliability, precision and a short response time for efficient control loops in all CO or CO2 generating processes.
SICK GM35 Gas Analyser – Features
- Dynamic humidity correction
- Fast in-situ measurement directly in the process
- Simultaneous determination of up to three gas components, temperature, and pressure
- No gas sampling and conditioning
- Gas testable version of measuring probe available
- Integrated self-test and control functions
GM35 In-Situ Gas Analyser Applications
- Gas emission monitoring to EN 14181, e.g. power or cement plants
- Control of the water injection upstream of the electrostatic precipitator
- Monitoring of the combustion efficiency in hazardous waste incineration
- Process monitoring in urea production
- Tube rupture detection in heat exchangers
BS EN 14181 specifies procedures for establishing quality assurance levels (QAL) for automated measuring systems (AMS) installed on industrial plants for the determination of the flue gas components and other flue gas parameters.
 ➡ Did you know? T&D also distribute SICK level sensors, flow sensors, pressure sensors and temperature sensors.
SICK GM35
Technical SPECIFICATION
GM35 Gas Analyser System
| Description | In-situ gas analyser for emission monitoring and process measurement |
| Measured Values | CO, CO2, H2O, N2O |
| Performance-Tested Measurands | CO, CO2, H2O |
| Measurement Principles | Gas filter correlation, Interference filter correlation |
| Zero Point Drift | ± 2 %: relative to measuring range end value |
| Reference Point Drift | ± 2 %: within the maintenance interval (6 months), relative to measuring range full scale |
| Ambient Temperature | –20 °C … +50 °C Temperature change maximum ±10 °C/h |
| Storage Temperature | –40 °C … +55 °C |
| Ambient Humidity | ≤ 96 % Relative humidity; non-condensing |
| Conformities | EN 15267 (MCERTS) |
| Electrical Safety | CE |
| Gas Analyser Models | Cross-duct version |
| Measuring probe version | |
| Mounting | Mounting flange, DN125, PN6 |
| Mounting flange, ANSI, 5″ | |
| Test Functions | Automatic check cycle for zero and span point |
| Options | SCU control unit (for non-hazardous areas only) |
| Measuring Ranges (Measuring ranges refer to 1 m measuring path & depend on application and device version) |
|
| CO | 0 … 180 ppm / 0 … 20,000 ppm |
| CO2 | 0 … 22.5 Vol.-% / 0 … 100 Vol.-% |
| H2O | 0 … 25 Vol.-% / 0 … 100 Vol.-% |
| N2O | 0 … 60 ppm / 0 … 2,500 ppm |
| Certified Measuring Ranges (The cross-duct and GMP versions have been type-approved) |
|
| CO | 0 … 75 mg/m³ / 0 … 2,000 mg/m³ |
| CO2 | 0 … 15 Vol.-% |
| H2O | 0 … 25 Vol.-% |
Sender/Receiver Unit
| Description | Analyser unit of the measuring system |
| Electrical Safety | CE |
| Enclosure Rating | IP66 / NEMA 4x |
| Dimensions (W x H x D) | 921mm x 527mm x 529mm |
| Weight | 29 kg |
| Power Supply | |
| Voltage | 115 V AC / 230 V AC |
| Frequency | 48 … 62 Hz |
| Power Consumption | ≤ 350 W |
GM35 Sender Receiver Unit
Open Measuring Probe (GMP)
| Description | Measuring probe in open design with integrated purge air control system |
| Measuring Distance |  see Data Sheet |
| Accuracy | |
| Pressure Sensor | 1% |
| Temperature Sensor | 1% |
| Process Temperature | ≤ +430 °C With N2O measurement max. 180 °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 Safety | CE |
| Enclosure Rating | IP66 |
| Dimensions (W x H x D) | see Data Sheet |
| Weight | |
| 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 | Pressure sensor PT1000 temperature sensor Flow monitor for purge air monitoring |
Open Measuring Probe
Gas-Testable Measuring Probe (GPP)
| Description | Measuring probe with gas permeable filter element for adjustment with test gas |
| Measuring Distance |  see Data Sheet |
| Accuracy | |
| Pressure Sensor | 1% |
| Temperature Sensor | 1% |
| Process Temperature | ≤ +430 °C With N2O measurement max. 180 °C |
| Process Pressure | –120 hPa … 200 hPa |
| Dust Load | ≤ 30 g/m³ |
| Electrical Safety | CE |
| Enclosure Rating | IP65 |
| Dimensions (W x H x D) | see Data Sheet |
| Weight | |
| Material in Contact with Media | Stainless steel 1.4571, stainless steel 1.4539 |
| 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 |
Gas Testable Measuring Probe
AWE Control Unit – Sheet Steel Housing
| Description | The control unit serves as the human machine interface and is responsible for data processing and output as well as control and monitoring functions. |
| Electrical Safety | CE |
| Enclosure Rating | IP65 |
| Indication | LC display Status LEDs: “Operation”, “Service”, “Warning” and “Malfunction” |
| Analog Outputs | 3 outputs: 0/4 … 20 mA, 500 Ω Electrically isolated |
| Analog Inputs | 1 input: 0 … 20 mA, 100 Ω |
| Digital Outputs | 3 relay contacts: 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W Pre-set for failure, maintenance and functional control |
| Digital Inputs | 3 inputs: 24 V |
| Communication Interface | Serial CAN bus |
| Type of fieldbus integration | RS-232 |
| Function | Proprietary service interface & Internal system bus |
| Operation | Menu driven operation via LC-display & membrane keyboard |
| Model | Steel sheet enclosure |
| Dimensions (W x H x D) | 200 mm x 346 mm x 97.5 mm |
| Weight | 4.7 kg |
| Power Supply | |
| Voltage | 115 V AC / 230 V AC |
| Frequency | 50 Hz / 60 Hz |
| Power Consumption | ≤ 50 W |
| Input | Arrow keys Function Keys |
AWE Control Unit – Cast Metal Enclosure
| Description | The control unit serves as the human machine interface and is responsible for data processing and output as well as control and monitoring functions. |
| Electrical Safety | CE |
| Enclosure Rating | IP67 |
| Indication | LC display Status LEDs: “Operation”, “Service”, “Warning” and “Malfunction” |
| Analog Outputs | 3 outputs: 0/4 … 20 mA, 500 Ω Electrically isolated |
| Analog Inputs | 1 input: 0 … 20 mA, 100 Ω |
| Digital Outputs | 3 relay contacts: 48 V AC, 1 A, 60 W / 48 V DC, 1 A, 30 W Pre-set for failure, maintenance and functional control |
| Digital Inputs | 3 inputs: 24 V |
| Communication Interface | Serial CAN bus |
| Type of fieldbus integration | RS-232 |
| Function | Proprietary service interface & Internal system bus |
| Operation | Menu driven operation via LC-display & membrane keyboard |
| Dimensions (W x H x D) | 289 mm x 370 mm x 138 mm |
| Weight | 8.6 kg |
| Power Supply | |
| Voltage | 115 V AC / 230 V AC |
| Frequency | 50 Hz / 60 Hz |
| Power Consumption | ≤ 50 W |
| Input | Arrow keys Function keys |
Control Unit
Reflector Unit (Cross-Duct Version)
| Description | Reflector unit with hollow triple reflector |
| Electrical Safety | CE |
| Enclosure Rating | IP65 |
| Dimensions (W x H x D) | 291 mm x 280 mm x 161 mm |
| Weight | 8.5 kg |
| Process Temperature | ≤ +500 °C With N2O measurement max. 180 °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 |
Connection Unit
| Description | For extending the internal CAN bus connection with a cable provided by the customer |
| Electrical Safety | CE |
| Enclosure Rating | IP65 |
| Dimensions (W x H x D) | 125 mm x 103 mm x 57 mm |
| Weight | 3 kg |
Purge Air Fixture
| 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 |
| 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
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. see Data Sheet |
| Immersion Depth – PT1000 Temperature Sensor | 500mm 1000mm 1400mm |
| Material | Stainless steel 1.4571, steel ST37 |
| Scope of Delivery | Connecting cable for temperature sensor, 5m Connecting hose for pressure sensor, 5 m Flange cover, including seal and screws |
Purge Air Unit
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 filter |
| Ambient 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 |
| 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 | Hose nozzle 40 mm |
| Test Functions | Pressure switch (switching point –35 hPa) |
| Integrated Components | 2-step air filter, type Europiclon, dust capacity 200 g |
Gas Measurement Using SICK GM35 Gas Analyser Applications
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SICK GM35 In-Situ Gas Analysers | Data Sheet
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