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Gas chromatograph GC-2011

Product Description Model GC-2011 is a modern microprocessor-controlled gas chromatograph, equipped with a large-size liquid crystal display with an interface in Chinese and a five-stage temperature programming function. The device combines...

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Description

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Product Description

Model GC-2011 is a modern gas chromatograph with microprocessor control, equipped with a large-size liquid crystal display with an interface in Chinese and a five-stage temperature programming function. The device combines advanced technologies of domestic and foreign analogues. Setting various parameters is carried out using the keyboard; Built-in protection functions ensure data safety during power outages, protection against overheating and protection in the event of loss of carrier gas. The chromatograph is characterized by stable and reliable operation, well-thought-out design, ease of operation and wide expansion capabilities. The basic configuration includes two detectors, a thermal conductivity detector (TCD) and a flame ionization detector (FID), as well as an evaporator for packed columns and a dedicated sample injection system for capillary columns.

The device is widely used in the oil, chemical, pesticide industries, in forensic science, in the analysis of alcoholic beverages, in environmental monitoring, sanitary and epidemiological surveillance, as well as in higher educational institutions and research institutions.

Operating conditions of the device

Normal operating conditions of the device:

1. Ambient temperature: 0 to 30 °C.

2. Relative humidity: less than 85%.

3. No strong electromagnetic interference or corrosive gases in the environment.

4. Installation on a stable working surface that prevents strong vibrations.

5. Supply voltage: 220V±10％，50Hz±0.5Hz。

6. Power consumption: about 2KW

Main functional features

Large-sized LCD display with an interface in Chinese, providing a clear and informative display of data and convenient setting of parameters.

Built-in microprocessor device for manual ignition of the flame.

Reliable digital automatic zero compensation system, eliminating baseline instability typical of potentiometric adjustment.

Five-stage temperature programming function.

Intelligent automatic cooling system with frequency-controlled rear panel fan, providing high speed temperature reduction and allowing operation close to room temperature.

Unique column thermostat temperature monitoring mode to prevent detector contamination when columns heat up quickly. Single-column, two-channel gas circuit; the basic configuration is FID or TCD.

Simultaneously equipped with a packed column evaporator and an independent dedicated capillary column system, including a high quality capillary column flow splitter/splitter and make-up system. Provides convenient installation of small and large diameter capillary columns, as well as various packed columns.

Function for saving parameters when the power is turned off (non-volatile memory). Network surge protection and stopwatch function.

Overheat protection: when the specified temperature limit is exceeded, the heating is automatically turned off and an audible alarm is displayed with a text message indicating the malfunction. Any excess of the set temperature on any of the channels leads to automatic shutdown of heating with a text message about the reason and a sound signal.

Protection against loss or leakage of carrier gas with text alert, ensuring maximum safety of the TCD filament and chromatography column. Self-diagnosis function for faults with text messages about the causes of errors and an audible alarm.

Temperature Control Specifications

Temperature control range: from room temperature +8 °C to 420 °C.

Controlled areas: column thermostat, detector, thermal conductivity cell, evaporator.

Temperature maintenance accuracy: ±0.1 °C in the range up to 200 °C; ±0.2 °C in the range above 200 °C.

Temperature programming: eight-step linear temperature program.

Programming speed: from 0.1 to 30 °C/min in steps of 0.1 °C.

Detector Specifications

Detector	Sensitivity / Minimum detectable flux	Noise	Drift	Linear range	Features
PID	Mf≤1×10 -11 g/s (for benzene)	≤ 0.02mV	≤ 0.15mV/h	≥ 10⁷	Platinum-iridium filament, corundum nozzle
TSD	S≥3500mV.ml/mg (for benzene)	≤ 0.02mV	≤ 0.15mV/h	≥ 10⁵	Imported rhenium-tungsten filament, power supply with stabilized current