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| Brand | Zhongkehuifen |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HFG-960 Online Industrial Gas Chromatograph |
| Price Range | USD 14,000 – 70,000 |
| Category | Online Gas Chromatograph |
| Detection Principles | Capillary Column Separation + Flame Ionization Detector (FID) / Thermal Conductivity Detector (TCD) / Flame Photometric Detector (FPD) |
| Enclosure Rating | IP65 |
| Explosion Protection | Ex d IIC T6 Gb |
| Operating Temperature | −5 °C to +45 °C |
| Humidity | ≤90% RH (non-condensing) |
| Power Supply | 200–240 VAC, 50/60 Hz |
| Sample Introduction | Extractive Sampling |
| Flow Rate | 100 ± 50 mL/min (customizable) |
| Line Material | 316L Stainless Steel, PTFE, Passivated Stainless Steel |
| Heating Zone | Full-path heated to ≥120 °C (no cold spots) |
| Drift | <3% FS over 30 days |
| Repeatability | RSD <3% |
| Filtration Precision | <5 µm |
| Output Signals | 4–20 mA, RS232/RS485 (Modbus RTU), Ethernet (Modbus TCP) |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | NMHC-2 |
| Price | USD 12,000 (FOB Beijing) |
| Detection Principle | Dual-Column GC-FID |
| Detection Method | Methane Subtraction via Selective Separation |
| Linear Dynamic Range | 10⁷ |
| Analysis Cycle | ≤40 s |
| FID Detection Limit | ≤0.1 ppm (v/v) for CH₄ |
| Repeatability | RSD ≤2% |
| Power Supply | <300 W, 220 V AC / 50 Hz |
| Operating Environment | 5–50 °C, 10–90% RH |
| Analog Output | 4–20 mA |
| Digital Interfaces | RS232, RS485, Ethernet |
| Compliance | Designed to support EPA Method 25A, ISO 12039, and GB/T 16157–1996 workflows |
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