| Customization: | Available |
|---|---|
| After-sales Service: | Lifelong |
| Warranty: | 1 Year |
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Product Description
Introduction:1.Research-grade analytical instrument that test the real-time isobaric adsorption speed of specific steam or gas by weighing the change in the weight of the sample before and after the absorption and desorption under a certain relative partial pressure.
2. No compromise approximation or error on the test results.3. Innovative multi-station vacuum gravimetric vapor adsorption instrument that can support simultaneous analysis of 1-8 sample analysis.Main Models:1. Dynamic method: CY-DVS2. Vacuum method: CY-VVS
3. Dynamic method & vacuum method: CY-DVS&VVS
Main Function:
Vacuum Gravimetric Vapor Adsorption and Desorption Isotherm (VVS);Vacuum Gravimetric Vapor Isobaric Adsorption Desorption Rate (VVS)Vacuum gravimetric gas adsorption and desorption isotherm (VGS);Vacuum gravimetric gas isobaric adsorption and desorption rate (VGS);Temperature-programmed degassing (TPD) with vacuum gravimetric method;Reagent distillation and purification;Vacuum thermogravimetry: vacuum thermogravimetric analysis can be performed;Dynamic Gravimetric Vapor Isobaric Adsorption and Desorption Rate (DVS);Dynamic gravimetric gas adsorption and desorption isotherm (DGS);Dynamic gravimetric gas isobaric adsorption and desorption rate (DGS);Temperature-programmed desorption (TPD) by dynamic weight method;Dynamic weight method temperature program reduction (TPR);Dynamic Gravimetric Temperature Programmed Oxidation (TPO);Dynamic gravimetric method for multi-component competitive adsorption evaluation; upgradeable for adsorption of corrosive steam and gas (such as SO2, H2S, NH3, etc.)Report :
Vacuum degassing thermogravimetric reportAdsorption desorption isothermAdsorption and desorption rateBET single point method specific surfaceLangmuir specific surfaceBJH method mesoporous analysisT-plot micropore analysisD-R method micropore analysisHK method micropore analysis
Specification 1
| Item | Specification |
| Accuracy | 1ug/2000mg(0.1ug/500mg Optional)Compared with similar products, the range is increased by 2-5 times, and the accuracy is improved. |
| Dynamic weighing range | 10~1000 mg(0.1 ug:10~200 mg),Compared with similar instruments, it is 2-5 times higher. |
| Analysis Stations | 2,4,8 Optional;Simultaneous analysis of multiple stations, greatly improving efficiency. |
| Test gas type | Water vapor, organic vapor, various gases (strong acid gas needs to be customized); |
| Support blank synchronization test | Support blank space as background and buoyancy deduction synchronous test, eliminate system error and improve test accuracy; |
| Vacuum degassing temperature control method | 32-segment temperature program to prevent over-temperature, protect the sample, and prevent the sample from flying; |
| Vacuum degassing temperature | Room temperature~400ºC, accuracy above ±0.5ºC, stability better than 0.2ºC; |
| Anticondensation constant temperature | Room temperature~`±0.2ºC, stability better than 0.1ºC; |
| Analysis test temperature | -180ºC~60ºC, accuracy is better than ±0.1ºC, stability is better than 0.1ºC; |
| Item | Specification |
| Segmented pressure measurement | Capacitive film pressure sensor, double pressure sensor;sectionalization test :0-10 torr,0-1000 torr;Accuracy ±0.001 torr(7*10-6 mbar) |
| Vacuum | Less than 0.001 torr(7*10-6 mbar);(Optional molecular pump can reach 10-6 torr;) |
| Vacuum Pumping | Two-stage direct-connected vacuum pump imported from Germany, low noise, long life |
| Pneumatic control high vacuum baffle valve | Imported air-controlled high vacuum baffle valveLarge diameter, air control zero heating, leakage rate less than 1.3*10-11 Pa/m3/s |
| Dual mode buoyancy correction | Mode 1: Buoyancy calculation modeMode 2: Background subtraction curve mode |
| Steam"humidity/partial pressure"Control range | 0.01%~98% P/P0 ;The static method uses the "static evaporation" method to generate steam;The dynamic method adopts the "carrier gas mixing" method, which can obtain a wider steam partial pressure range from extremely low to extremely high; |
| Steam "humidity/partial pressure"Test accuracy | >0.001torr(7*10-6mbar);The "humidity/partial pressure" test adopts the direct absolute pressure test and the saturated vapor pressure P0 actual test method to test, which is more than 10 times more sensitive than the hygrometer; |
| Item | Specification |
| Saturated vapor pressure real-time test | Real-time saturated vapor pressure test to ensure extremely high relative pressure accuracy; |
| Distillation purification system | The instrument has the most advanced automatic distillation and purification system in the world, which can obtain a high-purity adsorption steam source, which provides a basis for high-precision testing;The distillation system makes up for the purity defects of ordinary commercially available analytical reagents or chromatographic reagents, greatly reduces the requirements for reagent purity, and improves analysis accuracy. |
| Steam Cold trap | Liquid nitrogen cryogenic cold trap can effectively prevent steam from entering the vacuum pump and polluting the pump oil;The cold trap can effectively capture high boiling point adsorbates and is a necessary device for vapor adsorption analysis;Without the protection of cold trap, it is impossible to obtain a high degree of vacuum. |
| Item | Specification |
| Intelligent automatic calibration | The instrument microbalance has an automatic calibration function, which can automatically perform calibration operations before each test to ensure test accuracy and avoid manual calibration work; |
| Pneumatic system | Modular air circuit system, the overall integrated design of the control valve, reduces the leakage point to the limit, adopts 316L stainless steel high-vacuum air control valve, the air leakage rate of the whole system is lower than 10-8 torr*m3/s, and the sealing performance is improved. ;All parts of the gas circuit system are coordinated for modular assembly, which greatly reduces the failure rate and greatly enhances the stability of the instrument. |
| Corrosion resistant | All pipelines and valves are sealed with oil-resistant and corrosion-resistant design;All valves are special valves resistant to oil and organic vapor corrosion;Make the entire system have excellent oil resistance and corrosion resistance, suitable for water vapor, organic vapor, and petroleum products adsorption and desorption analysis; |
| Quartz wire insulation and sealing | The pressure, temperature and other sensor signals in the vacuum chamber adopt the highest international standard quartz wire insulation sealing technology, with extremely low leakage rate, aging resistance and strong stability; |
| Intelligent self-check | The air-tightness automatic detection process, intelligently judge whether the air-tightness of the instrument is qualified; |
| Anti-condensation full temperature control | For vapor adsorption, the CY-DVS&VVS instrument is equipped with a full constant temperature device, that is, the entire gas path of the test position adsorption chamber sample tube, reference chamber gas path module, valve group, etc., is closed and constant temperature, and the full adsorption system has no cold spots; High-quality air-controlled valve, no heating of solenoid valve, further improving the system's constant temperature effect; |
Data Report 1
| KEY PERFORMANCE | Made in China | UK BRAND 1(VVS) | US BRAND(VVS) |
| Sensitivity/sample volume | 1ug/5g | 1ug/5g,Optional0.1ug/100mg | 0.1ug/5g |
| Weighing accuracy | Accuracy ±0.001%FSResolution ±0.0002%FS | ±0.1% | ±0.1% |
| Dynamic weighing range | 10~1000mg(0.1ug:10~200mg) | 10~200mg | 10~200mg |
| Analysis Station | 2,4,8 Optional | 1 | 2 |
| Distillation unit | Yes, the device can distill and purify common analytical reagents, increase the purity by 1-2 orders of magnitude, and improve the test accuracy. | NO | YES |
| Cold trap | Yes, the cold trap traps steam and prevents steam from entering the vacuum pump; | NO | YES |
| Saturated vapor pressure test | The saturated vapor pressure of steam can be tested multiple times in real time to improve the accuracy of partial pressure. | Using temperature calculation method | Using temperature calculation method |
| Balance calibration | Fully automaticAutomatic calibration before the start of each analysis | Manual Manual periodic calibration |
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