NDIR Multi-Gas Sensor for CEMS CO2 20 Vol.-% // CO 10000 ppm

Product catalog summary

Overview: The SILAREX NDIR Multi-Gas Sensor by smartGAS Mikrosensorik GmbH is designed for Continuous Emission Monitoring Systems (CEMS), capable of measuring CO2 up to 20 Vol.-% and CO up to 10000 ppm. It features dual active measurement channels, onboard cross and pressure compensation, and supports Modbus ASCII/RTU communication.

Specifications:

Measurement Principle: Non-Dispersive Infra-Red (NDIR), dual wavelength.
Measurement Range: CO2 (0 to 20 Vol.-%), CO (0 to 10000 ppm).
Flow Rate: 0.1 to 1.0 l/min.
Mounting Dimensions: 336 mm x 40 mm x 55 mm.
Warm-up Time: Less than 2 minutes for start-up, less than 30 minutes for full specification.

Performance:

Response Time (t90) at 0.7 l/min: Fast (<4s), Medium (<8s), Slow (<60s).
Digital Resolution: 0.01 Vol.-% for CO2, 1 ppm for CO.
Detection Limit: Varies with mode, e.g., 0.03 Vol.-% for CO2 in fast mode.
Repeatability: ≤ ± 0.06 Vol.-% for CO2, ≤ ± 6 ppm for CO.
Linearity Error: ≤ ± 0.1 Vol.-% for CO2, ≤ ± 10 ppm for CO.
Long Term Stability: Zero and span stability after 1000 hours of operation.

Environmental Influence:

Temperature Dependence: Zero and span values affected by temperature changes, with specified limits.
Pressure and Flow Rate Dependence: Compensated with residual errors specified.
Cross Sensitivity: Minimal impact from other gases at specified conditions.

Electrical and Communication:

Supply Voltage: 24 V DC with a tolerance of +10%.
Power Consumption: <6 W with heater on, <1 W at stabilized temperature.
Digital Output: Modbus ASCII/RTU via RS485.
Calibration: Zero and span calibration via Modbus.

Climatic Conditions:

Operating Temperature: +10 to +40 °C with thermal isolation required.
Storage Temperature: -20 to +60 °C.
Humidity: 0 to 95% relative humidity, non-condensing.

Additional Information: The document emphasizes the need for recalibration depending on application and ambient conditions. It also notes that specifications are subject to change and advises consulting smartGAS for specific requirements.

Catalog excerpts

NDIR Multi-Gas Sensor for CEMS CO2 20 Vol.-% // CO 10000 ppm-1

CEMS Dual Gas NDIR sensor 2 active measurement channels Ready to use calibrated On board cross compensation On board pressure compensation Modbus ASCII/RTU, autobaud, autoframe Status indicated by LED NDIR Multi-Gas Sensor for CEMS CO2 20 Vol.-% // CO 10000 ppm smartGAS item number: SX-200004-00000 Application Examples Emission monitoring CEMS Biogas Process measurement Accessories Insulation housing Gas cooler Particle filter Gas pump Mounting equipment smartGAS Mikrosensorik GmbH I Huenderstr. 1 I 74080 Heilbronn I Germany T +49 7131 797553-0 I F +49 7131 797553-10 I [email protected] I www.smartgas.eu Available design in support Mechanical Installation Data communication Gas pre-treatment

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NDIR Multi-Gas Sensor for CEMS CO2 20 Vol.-% // CO 10000 ppm-2

SILAREX I CO2 // CO I SX-200004-00000 General features Measurement principle: Non Dispersive Infra-Red (NDIR), dual wavelength Target gas: Measurement range: by flow (nearly atmospheric pressure) Flow rate: Mounting dimensions: Warm-up time: < 2 minutes (start up time) < 30 minutes (full specification) Measuring response* Response time (t90) @ 0.7 l / min: < 4 s (fast), < 8 s (medium), < 60 s (slow) Digital resolution: Detection limit (3 σ) max.: in fast / medium / slow mode: Repeatability: Linearity error (straight line deviation): Long term stability (zero): after 1000 h operating time Long...

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