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New GC-7890 gas chromatograph

NegotiableUpdate on 10/24
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Overview

The new GC-7890 gas chromatograph is a new instrument designed by Shandong Tenghai Technology using Japanese software and electronic circuits, with reference to American vaporization chambers and detectors. Large screen, both Chinese and English displays, ATM-64 bit chip, complete capillary system, suitable for automatic sampler system (optional).

Product Details

Performance characteristics of the new GC-7890 gas chromatograph:

1. A comprehensive self diagnostic function that enables users to easily check the location and type of faults, achieving human-machine dialogue function.

2. Comprehensive temperature overheating protection and platinum wire resistance on/off alarm function, ensuring temperature control is not lost.

3. Optional built-in A/D conversion circuit, which can directly output digital signals and achieve online control and analysis on PC.

4. The column box can achieve negative temperature operation through dry ice or liquid nitrogen.

Within 180 ℃, the column box control accuracy reaches ± 0.01 ℃.

6. It can be adapted to any brand of domestic or imported automatic sampler.

7. Gas paths such as diversion, tail blowing, and capillary tubes can be independently controlled by valves or EPC (optional).

8. Manual injection and automatic start of the injection device. Automatic ignition function optional, ceramic or quartz nozzle optional.

9. The instrument has automatic power-off protection function and stopwatch timing function.

10. Six way temperature control, seven step programmed temperature rise, independent temperature control of capillary gasification chamber, intelligent dual rear door opening.

11. The instrument has a built-in function of storing ten files, which can be called freely.

12. The instrument truly achieves automatic split/non split injection (optional).

13. Dimensions/Weight: 550 * 480 * 500mm/40kg


Technical specifications of the new GC-7890 gas chromatograph:

1. Temperature control range of column box: room temperature+2 ℃ -400 ℃ (set in increments of 0.1 ℃).

2. Temperature accuracy: not greater than ± 0.1 ℃ (seventh order programmed heating).

3. Quickly cool down and maintain a constant temperature without any fluctuations, reducing from 280 ℃ to 45 ℃ and reaching constant temperature in just 6 minutes.

4. Heating rate: 0.1 ℃ -40 ℃/min (set in increments of 0.1 ℃)

Detection limit Mt ≤ 5 * 10-12g/s (n-hexadecane)

Noise ≤ 5 * 10-14A

Drift ≤ 1 * 10-13mv/h

5. TCD detector:

Sensitivity S ≥ 3500mv.ml/mg (benzene)

Noise ≤ 10UV

Drift ≤ 30UV/h

6. Additional pre noise isolation amplifiers can be selected as needed.

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