|
Brand new gas chromatographs (gc) at prices that everyone can afford
Advanced Microcomputer System with Excellent Control Function The microcomputer temperature control system with remarkable performance uses the internationally advanced control technology, with high precision temperature control (within (+/-0.5), a high dependability and a better anti-interference, which is divided into 5 separate temperature control zones with the maximal control temperature up to 400C. Its limit temperature settings and overheat protection function guarantee the operating safety of this instrument. Its keyboard can set parameters for various kinds of control and operation functions (including the operating parameters for the detector) with easy to use controls. In addition, it has functions of self diagnosis, power-off protection, 10 kinds of modes of saving and opening files, 2 controls of external events, timing start-up/shut-down temperature control, timing procedures, parameter and range settings of detector, settings and display of polarity and current and many other functions, which enables the instrument to specifically display setting values, actual values, timings for saving and analysis of each temperature control. Flexible Sample Injector System Satisfying Various Analysis Requirements The instrument can install up to three sample injectors at the same time. According to the analysis requirements, the instrument can choose the best combination of the sample injectors, each unit of such combination can control the temperature independently, and the assembly/disassembly of these sample injectors is very simple. Sample Injector with single Packed Column/Double Packed Columns On column injection, which enables it to be widely used by various kinds of chromatographic columns and increases 6-way valves to make gas analysis. The system can be set up for 0.53 or other capillary column analyses. Detector with High Sensitivity and Stability The instrument can install up to three detectors, for instance FID, TCD, ECD, etc., at the same time. Upon different analysis requirements, it can adopt different combination of such detectors, so as to realize the connection of these detectors in series or in parallel conveniently. New-type FID has lower limit of detection, which makes the disassembly and cleanout of ejector nozzle and ion collector and guarantees highly consistency of performance of each set of detectors through precisely fixing up the installation structure of the emitter. High-sensitivity TCD adopts the rhenium-tungsten wire of high resistance and offers double amplification circuit with sensitivity up to 5000mV·mL/mg. The unique structure of thermal protection and insulation brings TCD higher stability of performance. Impulse-width modulation ECD constant-current source has a PC-based option of sensitivity and electrical current. Double Stable Gas Circuit with High Precision The carrier gas and make-up flow of air and H2 uses a regulation system based on a steady pressure valve and a steady current valve. Both uses digital vernier knobs with high precision, repeatability and dependability along with simplicity of use. Column Heater with High Performance and Large Capacity The column heater with large capacity can be installed conveniently and can hold capillary columns and double packed columns. It has the quick heating/cooling function through an automate back door mechanism and can realize the allowable room temperature control. The heating procedures of the column heater can be divided into 5 stages and 6 flights Multiple Accessories Provided Free of Charge for a Carefree Installation The instrument has a complete set of accessories for installation, such as purifier, offers the complete enclosure installed and used for the first time, such as purifying device, exterior gas tubing, wrenches, entry needle and various kinds of connectors, attached to, so user just needs to prepare the gas cylinders. Powerful Data Processing System a) Through the built-in data acquisition board, user can utilize the workstation software to monitor the base flow, compensate for the single packed column and process the chromatogram data on computers. b) Use of a completely independent two-way external data acquisition box and a chromatogram workstation with a combination of intelligent software, the data processing system enables the instrument to quickly acquire the chromatogram data of signal and precisely process at the same time. c) RS232 communication board and software, connected to the workstation, realize the two-way communication and the counter-control with the mainframe, namely, finish the setting and monitoring temperature and parameters of detectors and the setting of the data processing parameter. d) Unique stimulation software of chromatogram stimulates to search the optimal operating conditions for chromatogram on PCs and provides with stimulation teaching of chromatogram, trainings and knowledge base of chromatogram.
Specification
Specifications and Configuration of GC522 Series Gas Chromatogram The mainframes of these product series feature in: PC-based fully automated control, five-way temperature control, five-stage temperature programming, ten saving modes available, two allowable external events for installation and automated back door structure.
|
