Product Specifications
The GC-7860 Networked Gas Chromatograph is a new type of digital fully-controlled gas chromatograph launched by Shanghai Yu Ke Instrument Co., Ltd. It is available in a series of models, including Plus, A, AE, E, and C (mobile type), catering to different configurations and functionalities for user selection.
Product Details
The GC-7860 Networked Gas Chromatograph is a new digital fully-controlled gas chromatograph from Shanghai Youke Instrument Co., Ltd. It is available in various series, including Plus, A, AE, E, and C (mobile type), catering to different configurations and functionalities for user selection.
The instrument has fully absorbed advanced technology from similar foreign products and adopted the most advanced manufacturing techniques and processes in the domestic industry, ensuring the reliability and operating time of the instrument. It not only maximizes normal operating time and reduces maintenance frequency but also features a more streamlined and rational structure, as well as a more macro and impressive appearance; the intuitive keyboard operation and user-friendly reverse control software make it easy to learn and operate. It can be equipped with an advanced electronic circuit control (EPC) system, providing industry users with excellent quality and results you can trust. The instrument's network remote transmission and control capabilities make it possible for unattended, decentralized monitoring, and centralized control; the data analysis results can be connected to DCS for statistical, analytical, and monitoring of chromatographic component content, enhancing the automation of the production process.
Widely applied in various analytical fields such as petrochemicals, fine chemicals, biomedicine, environmental protection, food hygiene, high-purity gases, electricity, winemaking, scientific research, and education.
The GC-7860 SA gas chromatograph features electronic purge control (EPC) for all inlet and detector gas paths, offering enhanced precision in retention time and peak area. Users can adjust parameters such as gas flow rate, external events, temperature, and detector settings via reverse control software, and save all analysis method parameters. Digital circuits ensure consistent settings between runs and among different operators. Consequently, users benefit from improved reproducibility of retention times and more consistent, reliable results, achieving more with less effort.
Configurable liquid automatic sampler, controlled by reverse control software for various parameters, ensuring better repeatability, enhanced efficiency, and eliminating errors associated with manual sampling.
I. Solution
- Gas analysis in transformer oil (GB/T 17623-1998, DL/T 722-2000, DL/T 703-1999)
Coal Mine Underground Safety Gas Analysis by Gas Chromatography Method (able to continuously sample and analyze 32 points for 24 hours non-stop in a cyclic manner).
Air Quality (TVOC, Benzene, Total Hydrocarbons, and Non-MethaneTotal hydrocarbons analysis (compliant with GB/T 50325-2001, GB/T 18883-2002, GB 16927-1996); analysis of workshop exhaust gases, flue gases, and VOCs, benzene, and other contaminants in flue gases.MethaneContinuous 24-hour online analysis of total hydrocarbons.
Water Quality Analysis (in compliance with GB/T 5750-2006)
- Natural GasIndustrial gas analysis for various types of gas, including refinery gas, cracking gas, artificial gas, etc. (Available in simple single-valve models, wide-spectrum dual-valve four-column economic models, wide-spectrum triple-valve four-column practical models, wide-spectrum five-valve six-column models, triple-valve four-column TCD models, and quadruple-valve five-column dual-TCD models; Compliant with GB/T 13610-2003, UOP 539, ASTM 1945, ASTM D 1946, and GPA 2261; Customizable according to specific sample requirements).
Gas,BiogasAnalysis (H2, O2, N2, CH4, CO, CO2, six components, single valve sequential transformation)
- Natural GasSulfur Compounds (single valve sequential backflush method, for detecting H2S and total sulfur)
- High purity gas analysis, electronic industry gas analysis (minimum detection concentration up to 20ppb and above)
Benzene in gasolineMethylbenzeneAnalysis (conforms to ASTM D3606; SH/T 0713-2002)
Analysis of Oxygenates in Gasoline (Compliant with AZTM D4815 and SH/T 0633-1998)
- Benzene in gasolineMethybenzeneAromatic Analysis ?? (Compliant with ASTM D5580-1995, SH/T0693-2000)
- SOA analysis of hydrocarbon composition in gasoline, PONA analysis of monomer hydrocarbons in gasoline (detection of saturated hydrocarbons, olefins, aromatics, and benzene content; using a specially designed olefin adsorption trap; in compliance with SH/T 0741-2004)
-Simulated distillation gas chromatography (conforms to SH/T 0558, ASTM D5307, D3710, D6352, D2887)
Blood Ethanol Analysis (compliant with standard GA/T105-1995)
-Rolling Tobacco VOC (conforms to YC/T 207-2006), Drug Residue Analysis, EpoxyEthyl Alcohol(Meets GB/T 16886.7-2001, Solvent Residue Testing in Packaging Materials)
Special gas chromatography for greenhouse gases (CO2, CH4, and N2O, 0.1ppm—100%);
Catalytic evaluation, online high-pressure, high-temperature analytical system (chromatography system customized as required)
- Process gas chromatographs (industrial chromatography), analytical cabin construction, multi-channel sample selection (supports up to 32 channels), sample pretreatment, etc.
Central cutting valve
Custom Valve Systems
Section II: Key Features and Parameters of the GC-7860 Series Gas Chromatograph
- Features an 8.0-inch LCD capacitive touch screen, supporting switch between Chinese and English. Large-screen direct reading displays nitrogen, hydrogen, air flow rate, pressure, and facilitates instrument operations. Standard with PC remote control software, built-in chromatography work station, enabling synchronous bidirectional control.
- The instrument features an open port, allowing for future upgrades to a gas chromatography-mass spectrometer of the same brand, either a GC-TOF MS or a GC-MS/MS.
- One-touch startup. Fully automatic operation of various functions: heating, ignition, self-check, gas leak alarm, etc. Equipped with gas shortage alarm protection feature; heating control protection function (fan motor and heating system automatically shut off when the column door is opened during operation)
- Flow分流/分流比 can be automatically controlled to save carrier gas. Equipped with an automatic sampler positioning interface.
- Multi-core, 32-bit embedded hardware system with logarithmic amplifiers, featuring no cutoff value in signal detection, good peak shape, and expandable synchronous external trigger functionality. Can be initiated by external signals (such as autosamplers, thermodesorption instruments, etc.) to start the host and workstations.
- The air path control utilizes EPC (Electronic Pressure Closed-loop Control) and EFC (Electronic Flow Closed-loop Control) technologies, allowing for arbitrary adjustments within the set range; options for setting carrier gas and tail gas types are available: He, H2, N2. Each carrier gas system can achieve constant pressure, constant flow, and constant line speed, and uses He, H2, N2 as standard gases for flow calibration.
- System self-check function, enabling automatic fault recognition.
- The main unit features 20 memory storage methods, which can be directly accessed for convenience and ease.
- An expanded interface with at least 8 external event options, allowing optional various control valves and capable of operating in a pre-set sequence.
External link options include LAM network port connection (RJ45) and RS232 communication port.
- Electronic Pneumatic Circuit (EPC) Control Method: EPC electronic pneumatic circuit control accuracy of 0.01 mL/min or 0.01 Kpa, ensuring better retention time reproducibility and more consistent and reliable results.
- EPC Operation Modes: Constant Current, Constant Pressure, and分流Mode.
- Process Pressure Control: 4th Order
- EPC process gases: N2, H2, Air, He, Ar
EPC control range: Pressure 0～0.6 MPa, Flow rate 0～100 SCCM or 0～500 SCCM
- EPC Control Accuracy: Pressure 0.01 Kpa; Flow 0.01 SCCM
Supports high-speed temperature rise, up to 80℃/min, suitable for rapid analysis.
- Temperature can reach up to 450°C, suitable for analyzing high boiling point samples.
Supports double-column box and double rear door mode.
- The column box temperature increment of 1℃ and accuracy of ±0.01℃ is already comparable to the same type of imported products.
- 6 external events, 2 auxiliary control outputs.
- A diversified sample introduction system is available, including packed column, capillary分流/不分流, valve, liquid automatic, fully automatic headspace, pyrolysis, thermal desorption, and sweep trapping options.
- Configurable central splitting and valve switching systems assist users in completing complex multidimensional chromatographic analysis tasks. The Plus model is a multipurpose gas chromatograph specifically designed for multidimensional application analysis and on-line analysis.
A wide range of detector types available, with the Plus model capable of installing up to three detectors (Model B can accommodate two simultaneously): TCD, HTCD, uTCD, FID, FPD, ECD?, NPD, ZD, PDHID, PID, AID.
- The program supports multi-channel sample selection MPV system with features such as automatic valve count recognition, automatic tier judgment, automatic reset, valve position selection, and valve position analysis memory. It can support up to 32 channels of sample flow selection.
Network remote transmission and control capabilities, enabling unattended analysis, decentralized monitoring, and centralized control.
- Data can be interfaced with the DCS system via MODBUS protocol, enabling statistical analysis, monitoring, and control of chromatographic component content, thus enhancing the automation level of production process control.
Column Temperature Chamber Specifications:
(1) Content Volume: ≥22L
(2) Temperature Range: 4℃ above room temperature ~ not less than 450℃ (increment of 0.01℃)
(3) Temperature Setting Resolution: ≤0.1℃
(4) For every 1℃ change in room temperature, the column temperature change is: ≤0.01℃
(5) The deviation between the set temperature and the actual temperature should not exceed 1%.
(6) Within 10 minutes, the relative standard deviation of temperature change should not exceed 0.05%.
(7) Maximum heating rate: ≥60℃/min
(8) Programmed Temperature Increase: ≥9 Steps/10 Platforms
(9) Programmed Temperature Repetition: ≤0.5%
(10) Cooling Method: Rear door + Variable Speed Motor
(11) Temperature Control Channels: 8 Channels
Sampler, Detector, Thermocouple Temperature Indicator
Temperature Range: 4℃ above room temperature to 450℃ (increment 1)
- Temperature Control Accuracy: Better than ±0.01℃
- Three-way electronic gas circuit EPC module
Three-way electronic air circuitP CModule
Section 3: Main Technical Specifications of GC-7860 Series Products
Sampler specifications:
(1) Temperature Range: 7℃ above room temperature - no less than 400℃
(2) Temperature Control Method: Independent Temperature Control
(3) Gas Flow Control Methods: Constant Pressure, Constant Flow, Constant Line Speed
(4) The分流mode can be directly set to the分流ratio.
(5) Head Pressure Range: Not less than 0-500 kPa
(6) Throttle pressure control accuracy: ≤0.01 kPa
(7) Flow Rate Range: H2: Not less than 0-200 ml/min; N2: Not less than 0-200 ml/min.
2. Hydrogen Flame Ionization Detector (FID)
3. The collector is designed with a cylindrical structure and features a platinum nozzle.
(1) The detector gas is controlled by EPC.
(2) Temperature Range: 7°C above room temperature to 400°C
(3) Hydrogen Flame Ionization Detector (FID): Logarithmic amplifier used; High-voltage switch control; Baseline signal display; Ignition coil control; Detection Limit: 1.8 pg/s (Sample: n-hexadecane); Baseline Noise: ≤0.015 pA; Baseline Drift: ≤0.3 pA/30min; Power Voltage Adaptability: Baseline noise and drift should still meet specifications when power voltage ranges from 220V to 242V and 198V; Dynamic Range: 107; Qualitative Reproducibility: Not greater than 0.06%; Quantitative Reproducibility: Not greater than 1%.
Hydrogen Flame Detector
Section 4: GC-7860 Network Edition Anti-Control Workstation:
1. Features and Functions:
(1) Compatible with Windows 7 and above; Data collection: single-channel collection and multi-channel synchronized collection, with automatic generation of data file names and storage in corresponding paths according to channels.
(2) Completed part of the monitoring program and some remote desktop features.
(3) User Login: Log into the software based on user permissions stored in the database.
(4) User Anti-Repeated Login: Determine the control software based on IP address, account, and password information, and prompt for logout of the device account logged in on other IP computers.
(5) Configuration Management: Configure database connections, server IP addresses, and ports.
(6) System Self-Check: Performed at software startup or manually, the software communicates with two server-side software instances to verify the normal operation of the system software.
(7) Equipment Inquiry: List all devices that the user can manage.
(8) Equipment Monitoring: Allows for scheduled or manual refresh of equipment status viewable by users, with relevant equipment information displayed on the interface.
(9) Remote Device Operation: Communicates with Windows on the MiniPC via RPC remote protocol to enable remote desktop functionality. In the event of an RPC protocol anomaly, an alarm indicator can be displayed in the page title.
(10) Method Download: Supports downloading method files from the server to the device by selecting the software.
(11) Graph Operation Software Integration: Supports one-click retrieval of the graph operation software from the client software or calling the topmost opened graph software.
(12) Data Processing and Analysis: Spectrum processing capabilities (manual/automatic integration, batch processing), qualitative and quantitative functions (area normalization, correction normalization, internal standard method, external standard method, exponential method), data comparison function.
(13) Report: Sample information, chromatograms, integration tables, user-customizable options, preview function.
(14) Files: Data browser for file management, integrated file structure, file transformation functions (AIA, HW, txt formats), template files, reverse control parameter files
2. Technical Specifications:
Input voltage range: -2.5V to 2.5V
- Integral sensitivity: 0.05 μV·s
Minimum Resolution: 1μV
Dynamic Range: 10-7
Linearity: ±0.005%
Repeatability: ±0.005%
- Sampling Cycle: adjustable at 10, 20, 30, 40, or 50 times per second
Chromatography Analysis Spectrum2
