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SYSTEM OVERVIEW

Gas chromatograph is one of the widely used analytical instruments, which has become an ideal analytical instrument for separation or analysis in various fields such as petrochemicals, environmental protection, food safety, medicine and health, national defense and legal inspection, and ultra pure materials.

TECHNICAL FEATURES

  A newly designed automatic gas chromatograph.

  The host adopts a 7-inch color touch screen, with a friendly human-machine exchange interface.

  Computer reverse control and host touch screen achieve synchronous bidirectional control.

  The multi-core, 32-bit embedded hardware system ensures the reliable operation of the instrument.

  The pneumatic control adopts EPC (Electronic Pressure Closed Loop Control) and EFC (Electronic Flow Closed Loop Control) technologies, which can be adjusted arbitrarily within the set range

  The data collection is equipped with a standard dual channel data acquisition card, with a sampling time of 50ms.

  The synchronous external triggering function can be activated by external signals (such as automatic sampler, thermal analyzer, etc.) to simultaneously start the host and workstation.

  It has a complete system self checking function and automatic fault recognition function, with a built-in consumables manual, and can directly select the corresponding consumables by item number.

  The host has 20 methods for storing memory functions, which can be directly called when needed, making it very convenient.

  The host panel has 8 USB expansion function interfaces for external events, which can be equipped with various control valves and work according to their own set timing. It can also save and output chromatographic column information.

The external connection method is Ethernet port connection (RJ45), which provides convenience for remote control of data.

Equipped with a gas trap sensor, it can remind users to replace the trap in various ways.

  Column temperature box:

  Temperature range: 5 ℃~400 ℃ above room temperature

  Temperature control accuracy: 0.02 ℃

  Program warming up: 9-level/10 platform

  Total program time: 9999.9 minutes

  Maximum heating rate: 60 ℃/min

  Cooling method; Rear door+variable high-speed motor

  Sample injector:

  Temperature range: 7 ℃~420 ℃ at room temperature

  Can install packed column, splitter, splitter/non splitter injector

  The diversion mode can directly set the diversion ratio

  Optional constant voltage mode, constant current mode, and constant linear velocity mode

  Zei connects two independent injection systems simultaneously

  Detector:

  Install up to 2 units simultaneously. Choose two from FID, TCD, or ECD.

  The detector gas is controlled by APC

  Temperature range:~420 ℃

  Hydrogen flame ionization detector (FID):

  Using logarithmic amplifier

  High voltage switch control

  Baseline signal display

  Ignition coil control

  Detection limit: 10-12 g/s Sample: n-Hexadecane (Zei small test measurement: 3pg/s)

Dynamic range: 107

Data collection frequency: 1000Hz

  Thermal conductivity detector (TCD):

  Bridge voltage switch control

  Bridge current setting 0-220 mA

  Sensitivity: 12000mvml/mg

  Dynamic range: 105

  Electron Capture Detector (ECD):

  Radiation source: Ni63

  Detection limit: 10-14g/s Sample: r666 (minimum detection limit: 80fg/s)

  Dynamic range: 103

  Data Workstation:

  Standard equipment electrical phase analysis software

  Suitable for 32-bit applications on Windows XP and Win7

  Data collection:

  Corresponding to individual analysis and batch analysis, automatic generation of data file names, and user program startup function.

  Data processing and analysis:

  Waveform processing function, data processing function, qualitative function (multiple relative retention times, components), quantitative function (area percentage method, corrected area percentage method, internal standard method, external standard method, standard addition method, index calculation), manual working curve creation function, chromatographic column performance calculation, data comparison function. It has a retention time lock function.


matters needing attention:

Due to product upgrades and other reasons, online product information is for reference only, and product technical parameters are subject to the sales contract.