Shandong Jinpu Portable Gas Chromatograph GC-8890SD for Transformer Oil Analysis
2026-09-03
The latest portable dedicated chromatography system released by Shandong Jinpu Analytical Instrument Co., Ltd. and designed for rapid on-site analysis of transformers. The device uses a classic three-detector design and allows, with a single sample injection, to perform a complete analysis of the seven gas components dissolved in the insulating oil (including H2, CH4, C2H4, C2H6, C2H2, CO and CO2). The data obtained completely coincide with the data of traditional laboratory chromatographs. The instrument is designed based on the advanced concept of compact modular design, has small dimensions and weight, and is easy to carry and carry out on-site analysis. It provides timely and accurate data for transformer proof testing while saving significant labor and material resources. The device has been tested at the Metrological Institute of Shandong Province, and in all respects it has reached the advanced international level. In January 2020, the product received the title of "Key New Product of Shandong Province" and received financial support from the local government through the Key New Product Commercialization Project.
Applicable standards:
GB/T 17623-2017 “Gas chromatographic method for determining the content of dissolved gas components in insulating oil”;
GB/T 7252-2001 “Guide to the analysis and evaluation of dissolved gases in transformer oil”;
DLT722-2014 “Guide to the analysis and evaluation of dissolved gases in transformer oil.”
1.Main characteristics:
1) Wireless remote control capability
Suitable for various operating conditions, provides convenient viewing of numerous control parameters, realizes data transmission at a distance; It is possible to connect a laptop or tablet computer.
2) Three-detector circuit
With a single sample injection, it allows you to simultaneously measure seven components in transformer oil: H2, CO, CO2, CH4, C2H4, C2H6, C2H2.
3) Automatic protection function
When pressure or flow goes beyond the specified range, the bridge current is automatically switched off.
4) Automatic display and flow control (EPC) function
Equipped with high quality electronic flow sensors that provide accurate display of carrier gas flow or automatic control of all parameters of each gas flow.
5) Memory function
In the event of a power failure or short-term interference, the microprocessor system automatically saves the control parameters, and after the interference is eliminated, it automatically restores normal operation.
6) Protection and self-diagnosis functions
If the platinum resistance thermometer is short-circuited (or broken), or if the temperature exceeds a preset protective value, the heating is automatically turned off to protect the device, and the location and type of fault are displayed.
7) Easy to operate the device
Setting up all parameters is convenient; For each test, the user only needs to perform simple on and off operations, making operation extremely simple.
8) Intelligent synchronous start function
It uses intelligent touch trigger technology, making retention time calculation more accurate.
9) All components of the kit are housed in a wheeled case that can be pulled by the handle or carried by hand, making the instrument a truly portable oil chromatograph.
10) The user can optionally order power from a DC source (lithium battery).
2.Specifications
1) Minimum detectable concentration (in µl/l):
| H2 | CO | （O2） | （N2） | CO2 | CH4 | C2H4 | C2H6 | C2H2 |
| 1 | 3 | 10 | 20 | 5 | 0.1 | 0.1 | 0.1 | 0.1 |
2) Repeatability of qualitative analysis: deviation ≤1%
3) Repeatability of quantitative analysis: deviation ≤3%
4) Control method: control is possible from the workstation and from the instrument panel.
5) Temperature control zones: 6 channels
6) Temperature control range: from room temperature +4 ℃ to 450 ℃.
7) Temperature maintenance accuracy: ±0.05℃
8) Programmable speaker thermostat heating: ≥20 steps
9) Programmable heating of the sample injection device: ≥7 steps
10) Overall dimensions: 450 × 430 × 230 mm
11) Weight: <35kg
3.Workstation
The dedicated chromatography workstation for power systems is the latest chromatography workstation designed on a Windows system. This is a professionally designed data processing system with wide functionality. Its fault diagnosis complies with the latest national standards. Data acquisition is carried out using a 24-bit high-precision USB data acquisition board; The input signal range reaches from -2 V to +2 V, resolution +1 µV.
Key Features:
3.1 Interference Peak Trigger: Ensures that the workstation and chromatograph are automatically triggered by an interference signal during sample injection.
3.2 Equipment management function: simple and visual creation of user equipment management cards; The analysis results are saved and categorized by different devices, making data management clear.
3.3 Flexible Printing Functions: Provides results reports in fixed format and custom template format.
3.4 Automatic fault diagnosis: after the analysis is completed, a warning is automatically issued if the standards are exceeded; Provides various fault diagnosis methods that meet national standards, including three ratio diagnosis, TD graphic display, component concentration graphic display, David's triangle and others.
3.5 Convenient high-quality identification: automatic or manual editing of the peak identification table is possible. Calibration coefficients are automatically calculated; averaging over several calibrations is possible.
3.6 Graphical presentation of data: based on historical records stored in the database, trend graphs of the concentrations of each component in historical data for specific equipment are visually displayed.
3.7 Powerful chromatogram processing capabilities: Provides baseline alignment and chromatogram splicing.
3.8 Real-time two-way communication: full reverse control, networking; The device is equipped with a built-in digital interface.
3.9 Open data management: Complete information about the relevant equipment and analysis result data are stored. Convenient adding, changing, deleting, random viewing and searching. The open data format is suitable for multi-user data exchange, facilitates access by other database management software, and also meets the search needs of regulatory authorities.
3.10 Flexible Peak Recognition and Processing: Identification, removal of chromatographic peaks, and adjustment of baseline separation can be accomplished by adjusting parameters and time program or manually. This ensures the accuracy of the analysis results.
4.Completeness
| Model/Name | Configuration | Quantity | Note |
| GC 8890SD Gas Chromatograph for Electric Power Industry | Main unit + TCD detector + FID detector + nickel converter + 2 special analytical columns + full EPC control. Determined gases: H₂, CO, CO₂, CH₄, C₂H₆, C₂H₄, C₂H₂. | 1 | Network control, full remote control; detection |
| Transformer Oil Analysis Workstation | — | 1 | In a portable case |
| Automatic shaker | — | 1 | Portable |
| Standard gas for transformer oil analysis | 2 l | 1 | In a portable case |
| Nitrogen and hydrogen cylinders | With gas, including reducers for cylinders | 1 each | In a portable case |
| Air pump | Oil-free, silent | 1 | In a portable case |
| DC power supply (powered by lithium battery) | — | (on request) | Optional |
