NDIR CO2 sensor MicroSENS 100-VS

infrared4-20 mARS-485

Description
CO₂ incubators must ensure stable, reproducible growth conditions for cell cultures while minimising contamination risk. The MicroSENS 100-VS is an NDIR CO₂ sensor designed for direct installation inside the incubation chamber. It provides fast, precise CO₂ and temperature feedback for reliable atmosphere control under real incubator conditions and supports advanced control strategies.

Key facts

• Product type: NDIR gas sensor for CO₂ measurement in incubators, sensor head vapour-sterilizable at 100 °C
• Target application: Direct installation inside the incubation chamber to measure the actual atmosphere experienced by the cells
• Measuring range: 0 … 20 Vol.-% CO₂ (optimized for accurate monitoring up to 5 Vol.-%)
• Measurement principle: IR dual-beam technology (NDIR)
• Compensation: Temperature, pressure and humidity compensation
• Performance: Accuracy ± (2% of reading + 0.2 Vol.-%), repeatability < 0.11% FS, response time t90 < 25 s (with filter), digital resolution 0.001 Vol.-%
• Long-term stability: ≤ ± 0.2 Vol.-% at 5 Vol.-% / year

Characteristics / technical specifications

• Maximum measuring range: 20 Vol.-%
• Measuring gas: carbon dioxide
• Gas supply: Diffusion
• Warm-up time at startup: < 15 s
• Heating time for full specifications: < 5 min
• IP protection class (default value): Sensor head IP54, area near connector plug IP30
• Repeatability: < 0.11 % FS
• Accuracy: ± (2 % of reading + 0.2 Vol.-%)
• Response time with filter: < 25 s
• Digital resolution: 0.001 Vol.-%
• Temperature influence: 0.125 % FS / 10 K
• Pressure influence: 0.004 % FS / 10 hPa
• Long-term stability: ≤ ± 0.2 Vol.-% at 5 Vol.-% / year
• Operating voltage (analog connection): 15 - 24 V DC
• Operating voltage (digital connection): 12 - 24 V DC
• Nominal power consumption: < 2 W
• Digital output signal: RS485
• Analogue output signal: Current 4 - 20 mA
• Minimum operating temperature: 0 °C
• Maximum operating temperature: 60 °C
• Minimum storage temperature: -20 °C
• Maximum storage temperature: 85 °C
• Maximum sterilization temperature: 100 °C (sensor head)
• Environmental humidity: 0 ... 95 % relative humidity (non condensing)
• Minimum air pressure: 500 hPa
• Maximum air pressure: 1,200 hPa