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The EXPEC-3200 is a portable GC-FID analyzer for on-site measurement of total hydrocarbons (THC), methane (CH₄), and non-methane hydrocarbons (NMHC). Designed for stationary and fugitive emission sources, it supports field inspections, enterprise self-monitoring, VOC source tracing, and evaluation of VOC treatment facilities.
The EXPEC-3200 (Model: 115Pro) Portable THC, Methane, and Non-Methane Hydrocarbons (NMHC) Detection System is based on gas chromatography with flame ionization detection (GC-FID). It is designed for on-site determination of total hydrocarbons (THC), methane (CH₄), and non-methane hydrocarbons (NMHC) from stationary and fugitive emission sources.
Equipped with a color touch screen and hot-swappable battery capability, the EXPEC-3200 delivers high measurement accuracy, long operating time, and user-friendly field operation. When paired with a water-based hydrogen generator, the system supports long-term hydrogen supply for continuous on-site measurements.
The EXPEC-3200 complies with HJ 1332-2023, Stationary Source Emissions—Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons—Portable Gas Chromatography–Flame Ionization Detector Method, and HJ 1012-2018, Technical Requirements and Test Methods for Portable Analyzers for Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons in Ambient Air and Exhaust Gas.
| Item | Specification |
|---|---|
| Detector | Heat miniaturized hydrogen flame ionization detector (FID) |
| Detection Limit | ≤0.1 ppm |
| Qualitative Repeatability | ≤0.5% |
| Quantitative Repeatability | ≤2.0% |
| Measurement Range | 0–30,000 ppm |
| Analysis Cycle | ≤2 min for NMHC |
| Sampling Probe Temperature | Adjustable from 0 to 180°C |
| Sample Gas Flow Rate | ≥0.6 L/min |
| Carrier Gas | 75 mL built-in high-pressure gas cylinder supply with hydrocarbon air remover; rechargeable after discharge |
| Hydrogen | 75 mL built-in high-pressure gas cylinder supply; rechargeable after discharge; optional hydrogen storage alloy configuration |
| Standard Gas | 75 mL built-in high-pressure gas cylinder supply; rechargeable after discharge |
| High-Pressure Gas Cylinders | Pressure resistance >1,800 psi; operating time >3 h at an initial pressure of 2,000 psi; charging time <5 s |
| Battery Requirement | 24 V, 19.2 Ah battery supply, or adapter-powered at 220 V AC, 50 Hz |
| Dimensions | 413 × 251 × 348 mm |
| Weight | 9 kg |
• Environmental inspection and law enforcement for organized and unorganized NMHC emissions.
• Enterprise self-monitoring of organized and unorganized NMHC emissions.
• Acceptance testing and comparison of online NMHC monitoring systems.
• VOC source tracing and investigation.
• Performance evaluation of VOC treatment facilities.
• Other applications involving non-methane total hydrocarbon (NMHC) monitoring.
High Integration and Portability: All-in-one industrial design with a reinforced carrying handle and backpack configuration, supporting convenient hand-carrying or back-mounted transport for single-operator field measurements.
Chromatogram Traceability: Displays and automatically records sample chromatograms for convenient post-analysis data quality control and measurement traceability.
Reliable Gas and Power Supply: Built-in zero-grade air generator module eliminates the need for external support gas; a water-based hydrogen generator and replaceable lithium battery support extended field operation.
Hot-Swappable Battery Design: Supports AC 220 V power operation or hot-swappable battery replacement, providing more than 8 hours of continuous operation.
Optional Flue Gas Parameter Measurement: Can be equipped with a portable analyzer to simultaneously measure flue gas moisture, oxygen concentration, temperature, pressure, and flow rate.
Built-In Multipoint Calibration Curves: Integrates multipoint correlation coefficients into calibration curves for convenient on-site use and quality control.
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