Gas Chromatograph (large LCD screen display)

GC902E Gas Chromatograph (large LCD screen display)

Instrument features:

1. The whole machine has high-precision electronic pressure/flow control. The main board is equipped with 10 channels of temperature control (including column oven temperature control). A total of 12 channels of time programs (external events) can be set, and 24-step temperature program.

2. 5.7-inch touch screen, computer can control the instrument, one computer can control N (N≦253) chromatographs, the instrument uses RJ45 network cable output interface, which can realize remote control of the instrument and remote data transmission, processing and supervision. It can connect unit supervisors and superior supervisors to facilitate supervision by supervisors.

3. Digital signal output (built-in chromatography workstation), signal network cable output directly.

4. Three commonly used detectors can be selected at the same time.

5. The large-capacity column oven has an automatic rear door and can be equipped with a variable frequency motor. The cooling time from 350℃ to 50℃ is less than 4 minutes.

6. Can be configured with packed column sampler, capillary column sampler, gas sampler, conversion furnace, thermal analysis device, headspace sampler, thermal cracking device, automatic liquid sampler, etc.

7. It has a fault self-diagnosis function, which can display the location and nature of the fault at any time; it has an over-temperature protection function, and the heating will automatically stop if the temperature of any path exceeds the set temperature.

Technical parameters:

1. Detector indicators

	Thermal conductivity detector		Hydrogen flame detector	Electron capture detector	Flame photometric detector
	TCD	HTCD	FID	ECD	FPD
Sensitivity (detection limit)	≥3500 mV.ml/mg(benzene)	≥10000 mV.ml/mg(benzene)	≤1pg/s (n-C16）	≤10fg/ml(γ-666）	≤1.0 pg/s（P） ≤10 pg/s（S）
baseline noise	≤5μv	≤10μv	≤5 μv	≤20 μv	≤20 μv
Baseline drift	≤30μv/30min		≤50μv/30min	≤50μv/30min	≤50μv/30min
linear range	>10⁵		>10⁷	>10⁴	>F10⁴(P)>10³(S)
stable schedule	≤1h		≤30min	≤30min	≤30min

2. Temperature control parameters

Number of temperature control interfaces: 10 channels

Temperature control range: room temperature +5℃~400℃

Temperature control accuracy/stability: ≤0.1%

Display accuracy: 0.1℃

Programmed temperature rise

Level of Cheng Ascension: Level 24

Programming rate: 0~120℃/min (adjustment increment 0.1℃/min)

Cheng Sheng repeatability: ≤0.5%

3. High-precision electronic pressure/flow control

Pressure setting range: 0-100psi

Pressure control setting accuracy: 0.01psi

Total flow setting range: 0-1000ml/min (helium); 0-200ml/min (nitrogen)

Flow setting accuracy: 0.1ml/min

Maximum split ratio: 1:1000

4. Number of external event interfaces: 12 channels

5. Column box volume: 160×304×278mm (depth×width×height)

6. Host size: 525×580×490mm (length×width×height)

7. Instrument weight: about 50kg

8. Maximum power: about 3000W