The SP-3420A gas chromatograph is a laboratory gas chromatograph developed based on the introduction of instrument manufacturing technology from Varian Corporation in the United States. It is widely used in many fields such as petroleum, chemical, environmental protection, disease control, medicine, power, food, scientific research, and education.

Performance characteristics

• Self diagnostic system:

1) Core testing;

2) Automatic testing;

3) Extended testing;

4) Basic testing;

It can continuously monitor the working status of the instrument and enable the operator to maintain the instrument on their own based on fault information prompts.

• Protection function:

1) Over temperature protection;

2) Probe open or short circuit prompt;

3) TCD hot wire protection;

4) FID shutdown prompt;

5) FPD leakage protection;

6) Password lock keyboard and other functions, multiple protection functions can ensure the long-term normal operation of the instrument.

• Easy to operate and highly automated:

1) Input various parameters in the form of human-machine dialogue, with prompt function;

2) Can store four analysis methods, which can be automatically linked;

3) Can be connected to an automatic sampler;

4) Various parameters can be changed at any time during the operation of the method;

5) The method can automatically cycle up to 99 times, making it particularly suitable for normal operation of the instrument in unmanned situations.

Multiple injection units to choose from:

1) Filling column head sampler;

2) Fill column rapid vaporization injector;

3) Automatic and manual gas injection valves;

4) Headspace sampler;

5) Thermal analysis sampler;

6) Capillary splitter/non splitter injector can be installed simultaneously with three or two capillary splitter/non splitter injectors to achieve a dual capillary system.

Multiple detectors to choose from:

1) Thermal conductivity detector TCD;

2) Hydrogen flame ionization detector FID;

3) Electron Capture Detector (ECD);

4) Flame photometric detector FPD;

5) The thermal ion detector TSD can install up to two thermal conductivity detectors or three different detectors simultaneously.

• Optional Methanator:

1) Built in type;

2)External type.

•There is an independent car suspension system

Amplifier time programming: Each detector amplifier has a 5th order time programming function, which can automatically change the attenuation, range, and polarity of the output signal.

External event time programming: Four external events with twenty order time programming function can complete the automatic control of three automatic injection valves, switching valves, and blowback valves; Signal conversion between two detectors can be performed.

According to user needs, specialized gas chromatographs for various purposes can be developed to achieve multidimensional chromatography.