Product Introduction
The UHV-645 OIl Gas chromatography is a technique for the separation and analysis of multi-component mixtures. It primarily leverages differences in the boiling points, polarities, and adsorption coefficients of sample components within the chromatographic column to achieve effective separation, followed by qualitative and quantitative analysis of the separated components.
In a gas chromatograph, gas serves as the mobile phase (carrier gas). The sample is introduced into the inlet and vaporized, then carried by the carrier gas into a packed or capillary column. Due to variations in the boiling points, polarities, and adsorption coefficients among the components, they become separated within the column. The resulting data is transmitted via a serial port or network to a chromatographic workstation, which records and analyzes the gas chromatogram of each component to generate a detailed analysis report.
With its high separation efficiency, fast analysis speed, and minimal sample consumption, gas chromatography has found extensive applications across industries such as petrochemicals, biochemistry, pharmaceuticals, health and quarantine, food inspection, environmental protection, food processing, and clinical medicine. In these fields, it effectively addresses critical needs including quality inspection of intermediates and finished industrial products, scientific research, pollution monitoring, and production process control.
Principais índices técnicos
| Network anti-control system | Internal CAN's way, with interface board design, It can be converted to network port output at will |
| Signal output bits | 24-bit |
| Communication interface | Network interface output(class 6 network cable connections) |
| Circuit design | ARM embedded design for easy wireless control, remote control and mobile app control |
| Temperature control system | Six-way independent temperature control |
| Temperature control | Room temperature - 450 ℃, liquid nitrogen refrigeration: - 80 ℃ - 450 ℃ |
| Column box temperature control accuracy | ±0.02℃ |
| Program heating up | 21 Stage 21 level, 0.1 ℃ / stage |
| Show module | LCD de tela grande |
| Display accuracy | 0.01 ℃ |
| Lift rate of column and box | 0~80 ℃ / min (adjustment increment 0.1 ℃ / min) up to 120 ℃ / min |
| Temperature reprogrammed repeatability | ≤1% |
| TCD detector sensitivity | S value ≥ 10000mv.ml/mg (benzene) )up to 12000 mv.ml/mg (benzene) |
| Ruído de linha de base | ≤10uv |
| Baseline Drift | ≤50uv/30min |
| Detection limit of FID detector | ≤5 x 10-12g/s(cetane) |
| Ruído de linha de base | ≤2 x 10-14A |
| Baseline Drift | ≤1×10-13A/30min（After the instrument stabilizes for 2 hours） |
| Detection limit of ECD detector | ≤1.0 x 10-13g/s （r-666） |
| Ruído de linha de base | ≤40uv |
| Baseline Drift | ≤100uv/30min |
| Detection limit of FPD detector | ≤1.4 x 10-12 g/s(p), ≤5×10-11g/s(S) |
| Ruído de linha de base | ≤20uv |
| Baseline Drift | ≤50uv/30min |
| Extended | ≤6 external events can be added |
| Automation engineering | Can be increased: automatic ignition function, automatic sampler connection, four-way flow pressure display function, optional counter-control workstation to achieve counter-control |
Product Characteristics
1. Advanced Network Connectivity: Equipped with a state-of-the-art 10/100M adaptive Ethernet communication interface and a built-in IP protocol stack, enabling long-distance data transmission via local area networks or the internet. This facilitates easy laboratory setup, simplifies configuration, and streamlines analytical data management.
2. Multi-Level Data Access: Internally designed with three independent connection points, allowing access for local processing (laboratory site), unit supervision (e.g., quality inspection manager, production director), and higher-level oversight (e.g., environmental protection bureau, technical supervision bureau). This enables real-time monitoring of instrument operation and data analysis results by supervisors at all levels.
3. Networked Workstation Support: Comes with a network version of the workstation that supports up to 253 chromatographs, including data processing and counter-control capabilities. This simplifies document management while significantly reducing laboratory investment and operating costs.
4. Remote Diagnostics and Updates: Supports remote diagnostics and program updates via internet connection to the manufacturer (user-authorized).
5. Flexible Display Options: Can be equipped with a 5.7-inch color LCD screen or a color touch screen to meet varying user preferences.
6. Bilingual Operating System: Features both Chinese and English operating systems, freely switchable.
7. Customizable Control Zones: Temperature control zones, electronic flow controllers (EFC), and electronic pressure controllers (EPC) can be freely named by the user for enhanced convenience (optional).
8. Multi-Processor Parallel Operation: Utilizes a multi-processor parallel architecture to ensure high reliability and accommodate complex sample analyses. Supports a variety of high-performance detectors, including FID, TCD, ECD, FPD, and NPD, with up to four detectors installed simultaneously. Additional detectors can be conveniently added after purchase using the detector appendage method.
9. Modular Structure: Designed with a modular architecture for clear layout, easy replacement, and straightforward upgrades, ensuring long-term investment protection.
10. Advanced Temperature Control System: Features a new microcomputer temperature control system with high precision, reliability, and anti-interference performance. Includes six fully independent temperature control zones and supports 16-step program heating, enabling a broader range of sample analysis. The column oven is equipped with an automatic rear door system, improving low-temperature control accuracy and accelerating heating/cooling rates.
11. Digital Flow and Pressure Control: Incorporates advanced electronic flow controllers (EFC) and electronic pressure controllers (EPC) for digital control, significantly improving qualitative and quantitative reproducibility.
12. Timed Self-Start Function: Designed with a timed self-start procedure, facilitating online analysis of gas samples (requires online automatic sampling components).
13. High-Performance AD Conversion: Built-in low-noise, high-resolution 24-bit AD circuit with baseline storage and baseline subtraction capabilities.
14. Wide Operating System Compatibility: Compatible with Windows XP, Windows 2000, Windows 7, and other operating systems. Sampling data is read via CDF files conforming to AOAC (American Analytical Society) standards, enabling connectivity with chromatography workstations from Agilent, Waters, and other manufacturers.
15. Open Communication Protocol: Features a Modbus/TCP standard interface with full independent intellectual property rights, allowing easy connection with DCS systems.
16. Auto-Sampler Compatibility: Compatible with automatic injectors from various domestic and international manufacturers, such as Shimadzu's AOC-20i and Italy's HTA series high-efficiency gas/liquid auto-samplers.
