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HF-TC-627 Gas Chromatograph Analyzer
This Gas Chromatograph Analyzer is specially designed for dissolved gas analysis of transformer insulating oil. It precisely separates and measures various fault gases, effectively diagnosing overheating, partial discharge and arc hidden faults inside oil-immersed power transformers for daily substation maintenance.
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This professional gas chromatograph analyzer is tailor-made for dissolved gas analysis (DGA) of transformer insulating oil in power systems. It accurately separates, detects and quantifies multiple characteristic fault gases dissolved inside oil, so as to identify transformer hidden faults including partial discharge, overheating and electric arc defects in advance.
Equipped with adaptive Ethernet communication and built-in IP protocol stack, the instrument supports remote data transmission and real-time online monitoring by multi-level administrators. Matched with optional NetChrom™ workstation, it can centrally manage multiple chromatographs simultaneously, simplifying data archiving and greatly lowering laboratory construction and operation costs, widely applied in power substations, power testing institutes and electrical preventive maintenance projects worldwide.
Product Features
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Equipped with advanced 10/100M adaptive Ethernet communication interface and built-in IP protocol stack, the instrument enables remote data transmission effortlessly via enterprise LAN and the Internet. It simplifies laboratory construction and configuration, and facilitates the management of analytical data.
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Three independent internal connection processes are designed inside the device, supporting connections for on-site local laboratory processing, department supervisors (quality inspection directors, plant managers, etc.) and higher competent authorities (environmental protection bureaus, market supervision administrations, etc.). Authorized personnel can monitor instrument operation and analytical results in real time conveniently.
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The optional NetChrom™ workstation supports simultaneous operation, data processing and centralized control of multiple chromatographs. It optimizes document management, greatly cutting down customers’ laboratory investment and daily operating costs.
Gas Chromatograph Analyzer Technical Specifications
General Specifications
| Parameter | Technical Index |
|---|---|
| Operation Display | 192×64 Dot Matrix Chinese LCD |
| Temperature Control Zones | 6 Channels |
| Temperature Control Range | Ambient +5℃ ~ 400℃, Increment: 1℃, Accuracy: ±0.1℃ |
| Programmed Temperature Rise Steps | 16 Steps |
| Temperature Rise Rate | 0.1 ~ 40℃/min |
| Pneumatic Control | Optional mechanical valve control or electronic pressure & flow control mode |
| External Events | 4 Channels |
| Inlet Types | Optional packed column, capillary column, 6-port valve gas sampling, automatic headspace sampling, etc. |
| Number of Detectors | 5 types, FID, TCD, ECD, FPD, NPD (optional) |
| Injection Trigger | Optional manual or automatic |
| Communication Interface | Ethernet, IEEE802.3 |
Detector Performance Parameters
| Detector Type | Performance Index |
|---|---|
| Flame Ionization Detector (FID) | Detection Limit: ≤3×10⁻¹² g/s (n-Hexadecane/Isooctane) Baseline Noise: ≤5×10⁻¹⁴ A Baseline Drift: ≤1×10⁻¹³ A/30min Linear Range: ≥10⁷ |
| Thermal Conductivity Detector (TCD) | Sensitivity: S≥10000 mV·ml/mg (Benzene/Toluene) (Optional magnification: 1, 2, 4, 8 times) Baseline Noise: ≤20 μV Baseline Drift: ≤30 μV/30min Linear Range: ≥10⁵ |
| Electron Capture Detector (ECD) | Detection Limit: ≤1×10⁻¹⁴ g/ml (γ-Hexachlorocyclohexane/Isooctane) Baseline Noise: ≤0.03 mV Baseline Drift: ≤0.2 mV/30min Linear Range: ≥10⁴ Radioactive Source: ⁶³Ni |
| Flame Photometric Detector (FPD) | Detection Limit: (S)≤2×10⁻¹¹ g/s, (P)≤1×10⁻¹² g/s; Methyl Parathion/Anhydrous Ethanol Baseline Noise: ≤3×10⁻¹³ A Baseline Drift: ≤2×10⁻¹² A/30min Linear Range: For Sulfur ≥10³, For Phosphorus ≥10⁴ |
Packing List: Gas Chromatograph Analyzer
| Item No. | Description | Qty | Unit |
|---|---|---|---|
| 1 | Gas Chromatograph Analyzer Main Unit | 1 | Set |
| 2 | FID/TCD Standard Detector Assembly | 1 | Set |
| 3 | Capillary Column & Packed Column (for transformer oil DGA test) | 2 | Pcs |
| 4 | Sampling Accessories: 6-port gas sampling valve, syringes, gas sampling tubes | 1 | Set |
| 5 | Carrier Gas Pipeline, Connection Fittings & Sealing Fittings | 1 | Set |
| 6 | Power Cable, Ethernet Communication Cable | 2 | Pcs |
| 7 | Operating Manual (English + Chinese Version) | 1 | Book |
| 8 | Factory Calibration Certificate | 1 | Copy |
| 9 | Product Warranty Card | 1 | Copy |
| 10 | Shockproof Aluminum Transport Case | 1 | Pc |
FAQ for Gas Chromatograph Analyzer
Q1: What is the main use of this Gas Chromatograph Analyzer?
A: It is mainly used for Dissolved Gas Analysis (DGA) of transformer insulating oil. It separates and quantifies fault gases in oil to diagnose internal transformer faults such as overheating, partial discharge and arc discharge, widely used in substation preventive maintenance.
Q2: Which detectors are available for selection?
A: Equipped with 5 optional detectors: FID, TCD, ECD, FPD, NPD. FID and TCD are standard configuration for conventional transformer oil gas detection.
Q3: How many temperature control zones does the instrument have?
A: It adopts 6 independent temperature control areas. The temperature range is ambient +5℃ ~ 400℃ with precision ±0.1℃, supporting 16-stage programmed temperature rise.
Q4: What gas circuit control modes are supported?
A: Two modes are optional: mechanical valve control and electronic pressure & flow precise control, meeting different test accuracy demands.
Q5: What sample injection ways does it support?
A: Manual and automatic injection are both available; compatible with packed column, capillary column, six-way valve gas sampling and automatic headspace sampling.
Q6: Does this gas chromatograph support remote data transmission?
A: Yes. It has 10/100M adaptive Ethernet interface and built-in IP stack, realizing remote data upload via LAN and Internet.
Q7: Can multiple administrators monitor the instrument at the same time?
A: Three independent connection processes are built inside. On-site lab staff, factory supervisors and higher regulatory authorities can monitor running status and test data in real time simultaneously.
Q8: Can one workstation control multiple chromatographs?
A: The optional NetChrom™ workstation can centrally control and process data for multiple devices, greatly saving laboratory construction and operating costs.
Q9: What are the core indicators of the standard FID detector?
A: Detection limit ≤3×10⁻¹²g/s; baseline noise ≤5×10⁻¹⁴A; linear range ≥10⁷, with stable and reliable detection performance.
Q10: What is the sensitivity of the TCD thermal conductivity detector?
A: Sensitivity ≥10000mV·ml/mg, 4 adjustable magnification gears (1/2/4/8 times), suitable for the detection of permanent gases in transformer oil.
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