1、 Instrument Introduction
AHS-791The 0A fully automatic headspace sampler is a product developed and launched by Beijing Zhongyi Yusheng Technology Co., LtdA new generation of 10 bit fully automatic headspace sampler with more convenient operation and higher cost-effectiveness.
2、 InstrumentCharacteristics and main functions of
1.Can run automatically 1-10 samples, no need for personnel on duty；
2.Power onSelf check, fault alarm and prompt,Automatic positioningCalibrationSample trayTo prevent bottle jamming caused by misalignment；
3.Microcomputer programControl, the main functions are:
⑴ Method parameter setting, real-timeAnimation displayWorking status and running time;
⑵Sample areaSample injectionvalveandsampletransmissionManage, all three channelsaloneHeating and temperature control;
⑶Set up analysisProgram,Press the run button to automatically complete all sample analysis；
⑷Has multiple expansion functions: dynamic headspace, blow and capture；
⑸ The GC and chromatographic data processing workstations can be started synchronously, and the device can also be started using external programs;
4. Equipped with an external carrier gas regulation system, headspace injection analysis can be performed without any modification or change to the GC instrument.Also optionalUse the original instrument carrier gas;
5. Automatically achieve pressurization, sampling, injection, analysis, and post analysis blowback through time programmingcleanOther functions;
6. Adopting pressure equilibrium injection technology, the peak shape of headspace injection is narrowGood repeatability；
7. Sample transmissiontransportPipeAnd the injection valveThere is an automatic blowback function, which avoids cross sampling of different samplessewageDyeing;
8.In order to make it more convenient and accurate to use with imported gas chromatographs, this instrument is also equipped with dedicated interfaces for various imported instruments, which are easy to connect;
9. For active substance analysis, an elastic quartz tube can be selected as the sample transfer tube;
10.canAdjust the injection volume at any time according to the concentration of the sample to be analyzed by the customer;
11.The injection needle is easy to replace and can be connected to all models at home and abroadGCInjection port.
IIIAHS-7910AType fully automaticHeadspace injectionimplement（Pressure balanceMain techniques for sample injectionparameter
1. Temperature control range in the sample area:
Room temperature -240 ℃ can be set in increments of 1 ℃ Heating power is about 400W;
2. Temperature control range of valve injection system:
Room temperature -220The heating power is approximately 60W with an increment of 1 ℃;
3. Temperature control range of sample transfer pipeline:
Room temperature -22Heating power of approximately 40W is set at 0 ℃ in increments of 1 ℃;
（For operational safety, the temperature control of the transmission pipeline adopts low-voltage power supply）
4. Temperature control accuracy:< ±0.1℃ ；
5. Temperature control gradient:< ±0.1℃；
6. Headspace bottle workstation:10 people；
7. Headspace bottle specifications: Optional20ml 、10ml；
8. Repeatability: RSD ≤ 1%（200ppm ethanol in water, N=5）；
9. Injection volume control mode: InjectiontimeAnd pressurized pressureControl the injection volume；
10.Injection pressure range: 0-0.4Mpa (continuously adjustable);
11.Backblowing cleaning flow rate: 0~400ml/Min (continuously adjustable);
12.Effective size of the instrument:430×280×300mm3；
13.Weight of the instrument: approximately20kg。
