Key Features:
- Ultra-Large Oven Design — ≥23L internal volume with advanced heat exchange for fast, uniform heating/cooling; dual independent oven zones; supports five-valve/seven-column setups.
- Intelligent Maintenance & Reminders — Real-time monitoring of key components; predictive alerts for septum, liner replacement, etc.; customizable thresholds.
- Multiple Detector Flexibility — Install up to 4 detectors simultaneously (FID, TCD, FPD, ECD, NPD, PDHID, PID, PDECD, PED, etc.) for diverse analytical needs.
- 7-Inch HD Capacitive Touchscreen — Real-time spectrum display, method editing, one-key reset, firmware upgrades via USB.
- Advanced Chromatography Software — Proprietary graphical interface; supports Windows 7/10/11, UOS, Ubuntu Kylin; Ethernet/Wi-Fi/IoT connectivity; remote control via APP/website; batch processing, auto-peak recognition, multi-internal standard quantitation, custom report templates (Excel/Word/PDF export); optional dedicated modules (non-methane hydrocarbons, calorific value, trace sulfur, TVOC, etc.).
- Industrial Connectivity — Modbus-RTU/TCP, HTTP, database interfaces; DCS integration; self-hotspot for mobile direct control.
Technical Specifications:
| Parameter | Specification |
| Display | 7-inch HD capacitive touchscreen |
| Temperature Control | 8 independent channels with auto-protection; dual oven zones |
| Oven Volume | ≥23 L (large three-box design) |
| Temperature Range (oven/injector/detector) | Ambient +5°C to 450°C |
| Temperature Accuracy | 0.01°C |
| Temperature Program | 99 ramps / 100 platforms (expandable) |
| Max Single Step Run Time | 100,000 min |
| Max Detectors | Up to 4 simultaneously |
| FID (Flame Ionization Detector) | Detectability: ≤1.1 pg C/s (n-hexadecane) Baseline drift (30 min): ≤2×10⁻¹³ A Noise: ≤2×10⁻¹⁴ A Linear range: ≥10⁷ Auto-ignition |
| TCD (Thermal Conductivity Detector) | Sensitivity: ≥12,000 mV·mL/mg Drift (30 min): ≤0.2 mV Noise: ≤0.05 mV Linear range: ≥10⁵ Gas cut-off protection |
| FPD (Flame Photometric Detector) | Detectability: P ≤80 fg/s, S ≤8 pg/s (methyl parathion) Linear range: P ≥10³, S ≥10² Auto-ignition |
| ECD (Electron Capture Detector) | Source: ⁶³Ni Detectability: ≤1.0×10⁻¹⁴ g/mL (γ-666) Linear range: ≥10⁴ |
| NPD (Nitrogen Phosphorus Detector) | Detectability: N ≤1×10⁻¹² g/s, P ≤5×10⁻¹³ g/s Linear range: ≥10³ (both) |
| Software & Communication | Multi-tasking workstation; Ethernet/LAN/Wi-Fi/IoT; up to 254 instruments per PC; LIMS/DCS compatible |
| Other | One-key reset; smart maintenance tracking; firmware upgrade via USB |
Typical Configurations:
- Sulfur Analysis Configuration — GC-7820 + FPD + capillary column (HF-Sulfur) + manual 6-port valve + air/hydrogen generators.
- Multi-Component / Petrochemical Configuration — GC-7820 + FID + TCD + multiple columns (Al₂O₃, HF-1, HF-5A, etc.) + auto 6-port/10-port valves + generators.
Applications:
- Petrochemical and refinery analysis (hydrocarbons, sulfur compounds)
- Environmental monitoring (VOCs, TVOC, non-methane hydrocarbons)
- Food safety and pesticide residue testing
- Industrial process control and quality assurance
- Trace sulfur, calorific value, and specialized gas analysis
- Research, university, and regulatory laboratories
