Characteristics and parameters of HS-20A automatic headspace sampler
HS-20A automatic headspace sampler is the latest generation of fully automatic headspace injection with full automation design, large screen display, beautiful appearance and convenient operation. Device. There are many ways to design stone carvings, among which the sink carving, also known as "line carving", is an artwork using the "water mill sink flower" carving method. This kind of carving method absorbs traditional techniques such as Chinese painting and meaning, overlapping, line modeling, scattered point perspective, etc. After the stone is polished by plane processing, it traces the pattern text, and then carves lines according to the drawing, with the thickness and depth of the lines, using shadows to reflect the three-dimensional sense. Most of these products are used for exterior wall surface decoration of buildings, with strong artistry. Stone Garden Decor,Cast Stone Garden Decor,Cast Stone Garden Decor Fountains,Outdoor Stone Garden Decor The universe in the stone is great , https://www.zdsarts.com
HS-20A automatic headspace sampler
Instrument introduction
HS-20A automatic headspace sampler is the latest generation of fully automatic headspace injection with full automation design, large screen display, beautiful appearance and convenient operation. Device.
Instrument features and main functions
1. Can automatically run up to 20 samples without the need for personnel to be on duty;
2. Power on self-test, fault alarm and prompt, automatically locate the sample tray;
3. Microcomputer program control, the main functions are:
(1) Method parameter setting, real-time animation display working status, running time;
(2) Sample area, injection valve and sample transfer tube, all three ways are separately heated and temperature controlled;
(3) Set the analysis program and press the run key to complete the entire sample analysis automatically;
(4) With a variety of extended functions: dynamic headspace, purge and trap, low temperature cold traps;
(5) The GC and chromatographic data processing workstations can be started simultaneously, and the device can also be started by a foreign program;
4. With external loading gas adjustment system, headspace injection analysis can be performed without any modification or change to the GC instrument. The original instrument carrier gas can also be selected;
5. Through the time programming, automatic anti-blowing and other functions such as pressurization, sampling, injection, analysis and analysis;
6. Using pressure balanced injection technology, the headspace injection has a narrow peak shape and good repeatability;
7. The sample transfer tube and injection valve have automatic backflushing function to avoid cross contamination of different samples;
8. In order to make the imported gas chromatograph more convenient and accurate to use, the instrument is also equipped with a special interface for various imported instruments, which is convenient to connect;
9. For the active substance analysis, an optional elastic quartz tube can be selected as the sample transfer tube;
10. The injection amount can be adjusted at any time according to the concentration of the sample to be analyzed by the customer;
Main technical parameters of HS-20A automatic headspace sampler (pressure balanced injection)
1. Sample area temperature control range:
Room temperature - 220 ° C in increments of 1 ° C set heating power of about 400 W;
2. Valve injection system temperature control range:
Room temperature - 220 ° C in increments of 1 ° C, the heating power is about 60W;
3. Sample transfer line temperature control range:
Room temperature - 220 ° C in increments of 1 ° C, the heating power is about 40 W;
(For operational safety, the transfer line temperature control is powered by low voltage)
4. Temperature control accuracy: 5. Temperature control gradient: 6. Headspace bottle station: 20 positions;
7. Headspace bottle specifications: optional 20ml, 10ml;
8. Repeatability: RSD ≤ 1.5% (200ppm ethanol in water, N=5);
9. Injection volume control mode: injection time and pressurization pressure control injection volume;
10. Injection pressure range: 0 ~ 0.4Mpa (continuously adjustable);
11. Backflush cleaning flow: 0 ~ 400ml / min (continuously adjustable);
12. Effective size of the instrument: 450 × 360 × 510mm3;
13. Instrument weight: about 26.5kg.
Http://news.chinawj.com.cn 
Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn