GC-9760APortable chromatograph for transformer oilIt is a portable specialized chromatograph launched by Shanghai Huaai Chromatography Analysis Technology Co., Ltd., suitable for rapid analysis of transformers on site. The instrument adopts the classic three detector process and can complete the full analysis of the content of seven gas components dissolved in insulating oil (including H) with one injection₂、 O₂、 CH₄、 C₂H₄、 C₂H₆、 C₂H₂、 CO and CO₂）The analysis data is completely consistent with traditional laboratory chromatography data. The instrument adopts an advanced small modular design concept, with a small overall volume and light weight, making it easy to carry to the site for analysis. It provides timely and accurate data for the supervision and testing of transformers, while also saving a lot of manpower and material resources.

According to the search conducted by the Shanghai Search and Consultation Center of the Chinese Academy of Sciences,GC-9760The comprehensive technology is domestically advanced and has reached a global high level. This product was awarded the Shanghai High tech Achievement Transformation Certificate in September 2008 and the Shanghai Key New Product title in April 2009. In June 2009, the Shanghai Municipal Commission of Science and Technology gave the product innovation fund support in Shanghai because it was optimistic about its progressiveness technology and good market prospects.

Execution standards:

• GB/T 17623-1998 "Determination of dissolved gas components in insulating oil by gas chromatography"
• GB/T 7252-2001《dgAGuidelines for Judgment

Analysis process:

GC-9760Portable chromatograph for transformer oilPerformance parameters:

• The minimumDetection concentration (unit µ L/L):

• Qualitative repeatability: Deviation ≤ 1%
• Quantitative repeatability: Deviation ≤ 3%

GC-9760Technical indicators:

Other parameters:

• Dimensions: 450 * 430 * 230mm
• Weight:<15kg

GC-9760Technical features:

• Gas path pressure digital display: All gas path pressures of GC-9760 are displayed digitally through pressure sensors, and the pressure of nitrogen, hydrogen, and air can be directly read through the workstation to implement and master the analysis conditions.

• Temperature parameter digital display and computer control: All temperature parameters of GC-9760 are digitally displayed and can be directly read and controlled through a workstation, including column boxes, detectors, converters, and other temperature channels. The operation is simple and clear.

• Digital FID electronic zeroing technology:GC-9760The FID detector signal zeroing adopts electronic zeroing technology, and high-precision digital circuits are used to compensate the FID base current in the FID signal amplification, achieving electronic adjustment of the FID output signal level. Electronic adjustment can be directly installed on the signal channel of the circuit board to improve the electronic noise suppression ability, without interference signals picked up by mechanical potentiometer connections. In addition, due to the reduction of parasitic parameters, it has strong anti-interference ability.

• FID detector with explosion-proof design: The FID detector is completely enclosed in a shell that can withstand any combustible gas that penetrates into the interior of the shell through any joint surface or structural gap without damage. Greatly improving the safety of instrument use.

GC-9760Software performance:

• Open data management: Save complete device information and analysis result data information. Easy to add, modify, delete, and retrieve at will. The retrieved analysis result data can be output to a Word template for printing, making it convenient for users to create various summary reports. Open data format, suitable for multi-user data sharing, facilitating access by other database management software and meeting the retrieval needs of management departments.
• Flexible peak recognition and processing capabilities: Chromatographic peaks can be identified, deleted, and baseline cut adjusted by setting parameters and time programs or manually modifying methods. Ensure the accuracy of the analysis results.
• Device management function: Briefly and intuitively set up user device management cards, and save analysis results according to different device classifications, making data management clear at a glance!
• Flexible printing function: Provides result reports in both fixed format and custom template formats.
• Automatic fault diagnosis: automatic over limit prompt after analysis, providing three ratio diagnosis that meets national standards, TD diagram, component concentration diagram, David triangle and other multiple fault diagnosis methods.