CHN analyzer LEA-102

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Overview
LEA-102 is a CHN elemental analyzer for the determination of carbon, hydrogen and nitrogen in coal, coke and other solid materials. The system uses infrared absorption for C and H detection and thermal conductivity for N, delivering reproducible results for laboratory and industrial testing workflows.

Operational highlights
Engineered for continuous laboratory and production use, the LEA-102 provides automated sample handling, controlled combustion and precise temperature regulation (±1°C). It features gas-path monitoring, intelligent diagnostics and batch processing for high-throughput testing. Typical analysis time is ~4 minutes per sample with a standard 39-sample batch (expandable to 78), enabling efficient routine operation while maintaining measurement stability and safety protections.

Key benefits

• Automated sampling and analysis to increase throughput and reduce manual intervention
• Batch processing and continuous testing suited to industrial QA/QC and laboratory workflows
• Integrated monitoring and protection systems for stable, safe operation

Features

• Fully automated CHN analysis
• Wide measurement ranges for C, H and N
• High precision with excellent repeatability
• Advanced PID temperature control with furnace accuracy up to ±1°C
• Automatic sample feeding and dropping system
• High throughput: 39 samples per batch (expandable to 78)
• Fast analysis time: ~4 minutes per sample
• Infrared absorption detection for carbon and hydrogen
• Thermal conductivity detection for nitrogen
• Absolute pressure sensor for gas-path monitoring and leak detection
• Optional automatic cooling and shutdown system
• Intelligent data management with report generation and LIMS integration
• Real-time data backup and upload capability
• Horizontal compact bench-top design for easy lab placement

Applications

• Elemental analysis of coal, coke and solid fuels
• Power plants and coal quality testing laboratories
• Mining and metallurgical industries
• Environmental monitoring and analysis
• Geological exploration and material testing
• Chemical industry elemental analysis
• Paper and materials processing industries
• Academic research and scientific laboratories
• Educational institutions and training labs

Technical specifications

• Temperature accuracy: ±1°C
• Temperature control range: RT +10°C to 1050°C
• Repeatability: Carbon ≤0.5%, Hydrogen ≤0.15%, Nitrogen ≤0.08%
• Measurement range: Carbon 0.005%–100%, Hydrogen 0.01%–60%, Nitrogen 0.008%–60%
• Sample weight: 80–100 mg
• Power supply: 220V/50Hz
• Sample capacity: 39 samples per batch (expandable to 78)
• Analysis time: ~4 minutes per sample
• Carrier gas: Helium (≥99.995%), 0.25 ±0.1 MPa
• Auxiliary gas: Oxygen (≥99.5%)
• Nitrogen gas: ≥99.995%, 0.25 ±0.1 MPa
• Sample handling: Automatic sample delivery & drop
• Power requirement: 4.5 kW
• Placement: Horizontal bench-top installation
• Dimensions (mm): 690 × 740 × 720
• Net weight: 105 kg
• Package size (mm): 940 × 890 × 990
• Gross weight: 148 kg
• Accessory crate: 910 × 510 × 520 mm
• Accessory crate gross weight: 31 kg
• Supply gas: Inert gas, oil-free, water-free (0.29 ±0.1 MPa)