TECHCOMP GC7900 Gaz Kromotografi Cihazı

TECHCOMP GC7900 Gaz Kromotografi Cihazı

GC7900 is the latest model of gas chromatograph developed by Techcomp, with compact design and outstanding performance.


• 7900 has 9-step temperature program, with maximum heating rate up to 39 °C per minute.

• Three injection ports and three detectors can be mounted at the same time.

• Large LCD screen displays all operating conditions and detection signals.

• Built-in data acquisition board to control 7900 gas chromatography and perform data analysis by PC through RS232 interface.

• Gas pressure is controlled and regulated by the latest advanced technology to ensure accuracy down to 0.1psi.

• Choice of injection port - Packed column, split/ splitless capillary and wide bore capillary column adaptor.

• Choice of detector - FID, TCD, ECD, NPD, FPD.

• D -7900 PC software is a standard with the main unit. The software can perform instrument control, data acquisition, chromatogram manipulation, data analysis and calculation as well as custom reporting.

• Injections can be automated by optional liquid autosampler.

Specification :

Operating Environment


Temperature range

5°C to 35°C

PC connection

RS-232, 9600 baud rate

Humidity range

25% to 80% (non-condensing)

Analog output

-5 mV to 1,000 mV

Power supply

220V ±10%, 50Hz

Injection Port

Power consumption


Display of column pressure and flow rate

Display of column pressure 0.1psi

Display of flow rate 1ml/min

Control of column pressure and flow rate

Manual control with flow stabilizer

Column Oven

Temperature control (max)

400 °C (increment of 1 °C )


250 x 250 x 176 mm

No of injection ports

3 (max)

Packed column injector

Wide bore capillary column adaptor

Capillary column injector

Operating temperature

Ambient+5°C to 400°C

(increment of 1°C)


Temperature accuracy


Temperature control (max)

400 °C for FID, NPD, FPD

350 °C for TCD, ECD

Ramp rate


(Temp ≤ 200°C)


(Temp > 200°C)

Max no of ramp


Reproducibility of temperature ramping


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