Gas chromatograph SP-3420A

Temperature control indicators
Column box 4 * 4-stage programmed heating, with a heating rate of 0.1-50 ℃/min;
Column box temperature range: 20 ℃ to 400 ℃ above room temperature
Temperature range of injector: room temperature to 400 ℃
Detector temperature range: room temperature to 400 ℃
● Auxiliary box temperature range: room temperature~400 ℃
Temperature control accuracy: ± 0.1 ℃

Detector system indicators
● TCD: S ≥ 5000mv. ml/mg (butane in He)
●FID：D≤8×10^-12g/s (n-C16)
●ECD：M≤2×10^-13g/ml (r-666)
TSD: Nitrogen measurement D ≤ 2 × 10^-13G/s (azobenzene)
Phosphorus measurement D ≤ 1 × 10^-13G/s (Malathion)
FPD: sulfur measurement D ≤ 2 × 10^-10G/s (Methyl parathion)
Phosphorus measurement D ≤ 2 × 10^-12G/s (Methyl parathion)

Basic parameters
● Instrument dimensions (height x width x depth): 500 x 588 x 550 (mm)³)
Working voltage: AC 220V ± 10% 50Hz
● Power consumption: 1650W
Net weight of the instrument: 50kg

main features

★ Adopting microcomputer control, full keyboard operation, 32-bit digital display.
★ It has self diagnostic function and can continuously monitor the status of the instrument. Once a fault is detected, it will immediately display information and prompt the fault area and troubleshooting methods.
★ Programmable detector range and decay time.
★ It has the functions of automatic switching of valves and automatic switching of two detection signals, which can achieve automatic analysis.
★ Multiple protection functions: TCD gas cut-off protection, over temperature protection, FPD light leakage protection, etc.
★ It can store four analysis methods simultaneously, making it easy to call at any time.
Five types of detectors, TCD, FID, ECD, FPD, and TSD, can be selected for installation.
★ Fill column injector and split/non split capillary injector, two types of injectors can be selected for installation, and three injectors can be installed simultaneously

Technical features:

1： Self diagnostic control system:

1) Core testing; 2) Automatic testing; 3) Extended testing; 4) Basic testing; It can continuously detect the working status of the instrument and enable the operator to maintain the instrument on their own based on the fault information prompts.

2： 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.

3： 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 decomposition suction 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.

4： 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 2 thermal conductivity detectors or 3 different detectors simultaneously.

Optional Methanator: 1) Built in type; 2) External type.

5： Amplifier time programming:

Each detector amplifier is equipped with 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 have a twenty order time programming function, which 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 can be made for various purposes to achieve multidimensional chromatography.