N2O nitrous oxide sensor Gasboard-2522

tunable diode laser absorption spectroscopyTDLASfor automotive

Product Overview

Gasboard-2522 is a high-precision N2O gas sensor based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) and employing a quantum cascade laser (QCL) source. It is designed for highly selective and sensitive N2O measurement in automotive exhaust emission monitoring under the latest Euro 7 performance requirements. Gasboard-2522 integrates a high-quality optical probe with a proprietary gas cell to deliver high measurement accuracy, high sensitivity, strong resistance to cross-gas interference, and long-term stable operation. Featuring a modular design, Gasboard-2522 supports easy installation and system integration. Calibration and configuration are available via an RS485 communication interface.

Applications include automotive exhaust emission monitoring, environmental monitoring, and laboratory research.
Features

• QCL-based narrow-band laser absorption spectroscopy with ultra-high sensitivity for N2O measurement, resistant to interference from other gases, humidity, and particulate matter.
• Ultra-fast response time of ≤ 3 seconds for real-time monitoring.
• Full-scale linear digital output for consistent, repeatable, and traceable measurement.
• High-performance optical probe for stable operation and long service life.
• Modular design for easy system integration and future upgrades.

Specifications

Principle: Tunable diode laser absorption spectroscopy (TDLAS)
Measurement: N2O
Range: 0~1000 ppm
Accuracy: ±0.3%FS or 2% reading
Zero Drift: Resolution: 0.1 ppm
Response Time T90: T10~T90 < 3 s
Constant Temperature: 60℃
Warm-up Time: Operating Temperature: -7 ~ 50℃
Operating Humidity: 0~98% RH (non-condensing)
Operating Voltage: 12 V ±5%
Operating Current: Communication: RS-485
Dimension: L×W×H: 372×155×81 mm (excluding air nozzle & foot pad)
Storage Condition: -40 ~ 85℃; 0~98% RH (non-condensing)