The GC-70A portable gas chromatograph adopts an advanced microcomputer control system, which not only retains the advantages of the standard chromatograph, but also adds automatic protection for gas path faults, automatic ignition of detectors, and automatic execution of on-off gas path opening and closing functions. The whole machine adopts EPC gas path control technology, which greatly improves its automation level and overall performance; Adhering to the mature networked data transmission and processing functions of standard chromatography instruments, we provide industry-leading analytical solutions!

The GC-70A portable gas chromatograph provides a powerful chromatographic solution for rapid, accurate, and reliable detection of gas samples, and provides a perfect analytical tool for on-site and online samples. Suitable for rapid analysis of gases such as new energy, coal mine safety, power safety, environmental monitoring, automobile exhaust monitoring, petrochemicals, refinery gas, natural gas, oil and gas exploration, etc.

Main technical indicators:

The body design is compact and reasonable, with multiple expansion functions and accurate and fast analysis.

join in marriage7-inch large screen, rich and intuitive display content, can directly display spectra and results.

have6-way temperature control, each temperature control can be set from room temperature to 450 ℃, increment: 1 ℃, accuracy: ± 0.1 ℃

have16 stage program heating, meeting the requirements for complex sample analysis.

Cheng Sheng rate:0.1-39 ℃/min (ordinary type); 0.1-80 ℃/min (high-speed type)

8-channel external control events can achieve instrument automation operation, and online analysis can be achieved through pipeline laying.

Multiple injection methods to choose from:

Column head injection and diversion/Non split injection, valve injection, headspace injection.

The maximum number of detectors that can be installedThree options (FID, TCD, ECD, FPD, NPD) can be selected, and a methane converter can be installed.

There are two options for control: mechanical valve control or electronic proportional valve control (electronic proportional valve is available)16 way control)

The gas pressure and flow rate are measured by precision sensors, and the measured values are displayed on the screen.

Working mode of electronic proportional valve:

1. Constant current mode, 2. Constant voltage mode

Electronic proportional valve5 types of gas media:

Nitrogen, hydrogen, air, helium, argon

Pressure:0～0.6Mpa； Flow rate: 0-100 sccm or 0-500 sccm (air)

Electronic proportional valve control accuracy: pressure0.01Kpa； Flow rate: 0.01 sccm

Pressure sensor:

Accuracy: Full scale<±2%

Reproducibility:<±0.05 KPa

Temperature coefficient:<±0.01 KPa/°C

Range:0-0.3MPa or 0-0.6MPa;

Flow sensor:

Accuracy: Full scale<±5%

Reproducibility:<± 0.5% (full scale)

Range:0～500sccm

Start injection: (manual, automatic, syringe automatic detection) optional

Data processing adopts10/100M adaptive Ethernet communication technology;

High communication speed, supporting long-distance data transmission and control.