NDIR Multi-Gas Sensor for CEMS CO2 20 Vol.-% // CO 500 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 500 ppm. It features dual active measurement channels, is pre-calibrated, and includes on-board cross and pressure compensation. Communication is facilitated via Modbus ASCII/RTU with autobaud and autoframe capabilities.

Applications: The sensor is suitable for emission monitoring, biogas analysis, and process measurement.

Accessories: Available accessories include insulation housing, gas cooler, particle filter, gas pump, and mounting equipment. The sensor is available in 2-channel and 3-channel designs.

Specifications:

Measurement Principle: Non-Dispersive Infra-Red (NDIR), dual wavelength.
Measurement Range: CO2: 0 to 20 Vol.-%, CO: 0 to 500 ppm.
Flow Rate: 0.1 to 1.0 l/min.
Warm-up Time: Less than 2 minutes for start-up, less than 30 minutes for full specification.
Response Time (t90): Fast: < 4 s, Medium: < 8 s, Slow: < 60 s at 0.7 l/min.
Digital Resolution: CO2: 0.01 Vol.-%, CO: 1 ppm.
Detection Limit: CO2: 0.01 to 0.03 Vol.-%, CO: 2 to 6 ppm depending on mode.
Repeatability: CO2: ≤ ± 0.06 Vol.-%, CO: ≤ ± 6 ppm.
Linearity Error: CO2: ≤ ± 0.1 Vol.-%, CO: ≤ ± 10 ppm.
Long Term Stability: Zero: CO2: ≤ ± 0.01 Vol.-%, CO: ≤ ± 5 ppm after 1000 hours.
Temperature Dependence: Zero: CO2: ≤ ± 0.005 Vol.-%/°C, CO: ≤ ± 0.1 ppm/°C.
Pressure Dependence: ≤ ± 0.02% of actual reading/hPa.

Electrical Inputs and Outputs:

Supply Voltage: 24 V DC ± 10%.
Power Consumption: < 6 W with heater on, < 1 W at stabilized temperature.
Inrush Current: < 400 mA.
Output Signal: Modbus ASCII/RTU via RS485.

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.

Notes: The document emphasizes the need for recalibration at first initiation and periodically, depending on application and ambient conditions. Specifications are subject to change without notice, and the data provided is for guidance only.

Catalog excerpts

NDIR Multi-Gas Sensor for CEMS CO2 20 Vol.-% // CO 500 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 500 ppm smartGAS item number: SX-200009-00000 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 500 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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