GC9890B gas chromatograph for liquefied petroleum gas and sulfides

Features

1. Large-screen LCD display; rich and intuitive displaying content; convenient to set parameters.
2. Unique microcomputer automatic ignition device.
3. Stable and reliable digital zero setting to avoid baseline instability caused by the zero setting of potentiometer.
4. Have analysis acquisition automatic start function to seriously guarantee the synchronization of analysis and acquisition.
5. Sample injector adopts ration card to guarantee accurate sample injection and good repeatability.
6. Intelligent back pullout automatic cooling system with frequency conversion function; with fast cooling speed; achieve real near room temperature operation.
7. Column adopts unique tracking temperature rising to avoid detector contamination caused by rapid heating of column chamber .
8. With gas stopping/leaking protection and prompts functions; maximize the protection for TCD tungsten and column from damage.
9. Temperature control adopts Multichannel Integration Solid-State Relay to make temperature control stable and reliable.
10. Fault self-diagnosis function. At any time to show failure cause and alarm indication.
11. Adopt microcomputer control, keyboard setting, LCD display, with memory function.
12. High performance detector and methanator. The detection capability completely meet the Electric Power Ministry's determination of gas component content in transformer oil.
13. Adopt one injection, second diffluence column with quick analysis speed and good repeatability.
14. Double hydrogen flame design to make low content hydrocarbons and high content CO, CO2 separately detected to avoid mutual interference.
15. Adopt new type column packing material, double column temperature flow to make the C2H2 detection time quicker, sensitivity higher and analysis period shorter.

Main Technical Index

Injection system

The split/splitless capillary injector (with diaphragm cleaning and tailing function) can be connected to various sizes of capillary columns with a diameter of 0.2 to 0.53 mm.Six-way valve injector system (inlet PTFE valve)

Host

Temperature control: room temperature ~ 450 °C, intelligent door opening, third-order program temperature rise, power-on self-diagnosis function, power-off parameter storage protection function (can save for ten years) oven over-temperature protection function, keyboard lock function, green backlight liquid crystal display function, stopwatch function. Storage.

Chromatography Workstation
USB interface, input voltage range: -1V ~ 1V, external 24-bit high-precision digital-to-analog conversion, minimum resolution: ±1μV. (in English)