gas chromatographEquipped with thermal conductivity, hydrogen flame and reformer two detectors. Seven gases can be analyzed in one injection. The thermal conductivity adopts high resistance rhenium tungsten wire and built-in amplifier circuit, which greatly improves the detection sensitivity of hydrogen. With automatic ignition and cut-off gas protection function.

The instrument has high control accuracy, stable air flow, guarantees the repeatability of analysis results, modular design, compact structure, convenient maintenance, realizes self-protection of gas path failure, automatic ignition, flameout focusing, automatic opening of gas path, and one-key start, With over-temperature protection device, if the temperature exceeds the set value, it is very difficult, the instrument will stop heating and report the fault on the display.

The instrument visually displays the instrument parameters through a large-screen LCD Chinese display screen, and is convenient for users to set various parameters such as temperature, range, detector, bridge current, etc. through a humanized software operation interface. Intuitively operate the functions of switching bridge current, opening and closing temperature control, program opening and closing, various time events, etc. The computer is connected to the Internet, and the remote computer can be connected to the instrument to realize remote data acquisition and management. The degree of freedom of the device is improved, and the effective application of the laboratory is promoted.

Performance characteristics

1. Full microcomputer key operation, large-screen LCD display in Chinese and English, Chinese and English display can be switched freely, meeting the operation requirements of different groups of people, man-machine dialogue, convenient operation.

2. The microcomputer-controlled hydrogen flame detector realizes automatic ignition function, which is more intelligent. The new integrated digital electronic circuit has high control precision, stable and reliable performance, and the temperature control accuracy can reach 0.01 ℃.

3. The gas-off protection function protects the chromatographic column, thermal conductivity cell and electron capture detector.

4. It has the function of starting up and self-diagnosis, allowing users to quickly know the cause and location of instrument failure, stopwatch function (convenient flow measurement), power-off storage protection function, power supply anti-mutation interference function, networking data communication and remote control function.

The gas chromatograph has a data memory system and does not need to be reset every time.

6. The injection port design solves the injection discrimination; the double-column compensation function not only solves the baseline drift caused by the temperature program, but also subtracts the influence of background noise, and can obtain a lower detection limit.

7. With packed column, capillary split/non-split flow injection system.

8. Optional automatic/manual gas six-way sample injector, headspace sample injector, thermal desorption sample injector, methane reformer, automatic sample injector.