TDLAS Gas Analyzer

Gasboard-3500

Gasboard-3500 is an online wall-mounted gas analyzer that delivers fast, accurate, and reliable measurement of key gases including CO, CO₂, H₂S, H₂O, O₂, and CH₄ from ppm level to percentage level. Designed for continuous, real-time monitoring, the analyzer utilizes high-performance TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology to ensure superior sensitivity and selectivity—without cross-interference or frequent calibration. Engineered for industrial process control, quality measurement and safety-critical applications, it offers a robust, low-maintenance solution ideal for natural gas processing, petrochemical plants, oil refinery, power generation, biogas & biomethane upgrading. With an Ex-proof enclosure, intuitive interface, and flexible integration options, this TDLAS gas analyzer sets a new standard in both process and trace gas detection.

Segment: Process Gas Analyzer
Division: Syngas Analyzer

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Features

High Precision Detection: Utilizes TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology for high selectivity, sensitivity, and stability.
Flexible Measurement Capability: Precise measurement of CO, CO₂, H₂S, O₂, and CH₄ with measurement range from ppm to 100%.
Robust Industrial Design: Ex dIICT6 Gb rated, suitable for harsh environments in oil & gas, petrochemical, and power generation industries.
Long-Term Reliability: No moving parts, minimal drift, and integrated self-diagnostics ensure long-term reliability.
Smart Data Management: Analog and serial outputs for remote monitoring.

Specifications

Measured Gas	Measurement range	Accuracy	Resolution
O2	0-500ppm	±2%FS	1ppm
	0-1000ppm	±2%FS
	0-5000ppm	±2%FS
	0-5%	±2%FS	0.01%
	0-25%	±1%FS
	0-100%	±0.5%FS
CO	0-500ppm	±2%FS	0.1ppm
	0-1000ppm	±1%FS	0.1ppm
	0-5%	±2%FS	0.01%
	0-25%	±1%FS
	0-100%	±1%FS
CO2	0-1000ppm	±2%FS	0.1ppm
	0-5%	±2%FS	0.01%
	0-25%	±1%FS
	0-100%	±1%FS
H2S	0-1000ppm	±2%FS	0.1ppm
H2S	0-1%	±2%FS	0.01%
CH4	0-100ppm	±2%FS	0.1ppm
	0-1000ppm	±1%FS	0.1ppm
	0-5%	±2%FS	0.01%
	0-25%	±1%FS
	0-100%	±1%FS
H2O	0-50ppm	±2%FS	0.1ppm
H2O	0-6000ppm	±2%FS	0.1ppm

Response Time	T90＜40s (after completely warm up)
Inlet Flow Rate	0.7~1.2L/min
Inlet Gas Pressure	2~50kPa
Sampling Gas Condition	No dust, no tar,no vapor (when measure CO, CO2, O2, CH4, H2S)
Ambient Temperature	0-50℃
Ambient Pressure	86-106kpa
Relative Humidity	5-85% RH non-condensing
Dimension (LWH)	H400 x W400 x D250 mm
Weight	9kg
Communication	RS-485/RS-232, 4~20mA
Power Supply	AC220V, 50Hz
Display	LCD
Ex-proof Rating	Ex d ⅡC T6
Fuction	Built-in zeroing air pump for automatic air zeroing; with self-diagnosis function for online sensor status checking

【Notes】

① All data in the table are measured under standard atmospheric pressure
② Measurement range can be customized per request
③ The response time is related to the inlet air flow rate
④ The optimal flow rate is 0.7~1.2L/min

【Applications】

Petrochemical Production: Real-time monitoring of CO, CO₂, H₂S in cracking furnaces, decoking processes, and ethylene oxide production.
Refining & Fuel Gas Monitoring: Detecting H₂S in refinery fuel gas and flare streams to ensure safety and compliance.
Natural Gas & LNG Processing: Trace H₂O detection in pipelines; CO₂, H₂S analysis for purification and corrosion prevention.
Industrial Safety & Process Control: O₂ monitoring in flares/vapor recovery; H₂O measurement in hydrogen recycle gas and drying processes.
Environmental & Waste Management: Landfill gas emission monitoring of CH4, CO, CO₂, H₂S.

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