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NR7500 series gas chromatograph

The gas chromatograph for transformer oil is suitable for determining the content of dissolved gases in the insulating oil of power systems. A single injection can complete the full analysis of the content of 7 dissolved gas components in the insulating oil, and its minimum detection concentration for acetylene reaches 0.1ppm. The instrument is equipped with a large-screen LCD liquid crystal display interface, menu-driven Chinese operation, intuitive display, and convenient operation. The instrument adopts a dual-column parallel split system, equipped with a thermal conductivity detector, a dual hydrogen flame detector, and a methane converter, which can complete the full analysis of H2, O2, CO2, CH4, C2H2, C2H4, and C2H6 in a single injection.

Category:

Oil (gas) chemical test section

Email:

jd@jindian-tech.com

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Product patent

Product description

Product Introduction

　　The transformer oil gas chromatograph is suitable for the determination of the content of dissolved gas components in the insulating oil of the power system. A single injection can complete the full analysis of the content of 7 dissolved gas components in the insulating oil, and its minimum detection concentration of acetylene reaches 0.1ppm. The instrument is equipped with a large-screen LCD liquid crystal display interface, menu-driven Chinese operation, intuitive display, and convenient operation. The instrument adopts a dual-column parallel split system, equipped with a thermal conductivity detector, a dual hydrogen flame detector, and a methane converter. It can complete the full analysis of H2, O2, CO2, CH4, C2H2, C2H4, and C2H6 in a single injection.

Main Features

　　◆ Adopts a 320 x 240 dot matrix 5.7-inch ultra-large screen LCD Chinese display, displaying various temperatures and operating conditions in real time, with clear and intuitive content;

　　◆ Power-on self-test, wide-range self-diagnosis function, can accurately judge the fault location and alarm;

　　◆ Six independent temperature control channels (vaporization chamber and capillary vaporization chamber can be independently controlled), eight-stage temperature programming function;

　　◆ Overtemperature protection function: If any channel exceeds the set temperature, the instrument will automatically power off and alarm;

　　◆ Unique vertical heating device, making sample vaporization more reliable, minimizing the heat radiation generated by the vaporization chamber, and ensuring that the temperature deviation in the column box is minimal;

　　◆ High-precision dual-stable gas path, can simultaneously install four detectors.

Technical Parameters

　　◆ Temperature Control Indicators

　　Temperature control range: Room temperature 5℃～400℃ Increment 0.1℃

　　Temperature control accuracy: Better than ±0.01℃

　　Temperature programming: Inter-stage constant temperature time 0～999min Increment 0.1min Temperature increment 0.1℃

　　Heating rate: Maximum 40℃/min below 200℃ Maximum 20℃/min above 200℃

　　◆ Main Technical Indicators of Detectors

　　Hydrogen Flame Ionization Detector (FID)

　　1) Cylindrical collector electrode structure design, quartz nozzle, extremely high response

　　2) Detection limit: ≤8×10g/s (n-hexadecane/isooctane)

　　3) Baseline noise: ≤2×10A

　　◆ Thermal Conductivity Detector (TCD)

　　1) Using a semi-diffusion structure

　　2) The power supply adopts a constant current control method

　　3) Sensitivity: ≥8000mV•ml/mg (n-hexadecane/isooctane)

　　4) Baseline noise: ≤20μV

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SAUNDERS

If you have any suggestions or feedback on our company, please fill in the relevant information on this page and submit it. A staff member will contact you in time, or please call us directly.

ADD：Building c3-09b, optical valley core center, 303 Optical Valley Avenue, Donghu New Technology Development Zone, Wuhan, China

Hotline: 400-027-1230
Tel: +86-027-8769-0177
+86-188-2742-2008
+86-177-6240-6910
After-sales :
+86-177 0277 9566
+86-133 6724 1932

Email:

jd@jindian-tech.com

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