index
parameter
Sensitivity / sample size
1ug/10g, 5-10 times better than similar products, improving accuracy.
Simultaneous analysis of sample size
2, 4, 8 optional; multi-station simultaneous analysis, the efficiency is greatly improved.
Test gas type
Water vapor, organic steam, various gases (strong acid gas needs to be customized);
Support blank bit synchronization test
Support blank position as background and buoyancy deduction synchronization test, eliminate system error and improve test accuracy;
Vacuum degassing temperature control
Multi-stage temperature programming to prevent over-temperature, protect samples and prevent sample flying;
Vacuum degassing temperature range
Room temperature to 400 ° C;
Full system anti-condensation constant temperature
Room temperature to 60 ° C;
Analysis test temperature
-180 ° C ~ 50 ° C;
Sectional pressure measurement
Original imported capacitive film pressure sensor, dual pressure sensor; segmentation test: 0-10torr, 0-1000torr; reading accuracy error ≤ 0.15%, is the highest precision of current pressure sensor;
The segmented pressure sensor configuration can obtain higher accuracy for the adsorption test analysis of the vapor-based adsorbate with lower saturated vapor pressure at normal temperature; the test accuracy is improved by more than 2 orders of magnitude compared with the single pressure sensor;
Vacuum degree
Less than 0.001 torr; (optional molecular pump up to 10-6torr;)
Dual mode buoyancy correction
Mode 1: Buoyancy calculation mode
Mode 2: Background subtraction curve mode
Steam concentration control range
0.01% to 98% P/P0;
Using the advanced "static evaporation" steam generation method, the range of steam partial pressure from very low to very high can be obtained compared to the "carrier gas mixing" method;
"Humidity / partial pressure" accuracy
Better than 0.001torr;
The “humidity/divided pressure†test is tested by means of direct absolute pressure test and saturated vapor pressure PO measurement, which is more than 10 times higher than that of hygrometer;
Saturated vapor pressure real-time test
Real-time test with saturated vapor pressure to ensure extremely high relative pressure accuracy;
Compared with indirect methods such as temperature conversion, table lookup, calculation, etc., the accuracy of the saturated vapor pressure P0 is greatly improved;
Steam trap cold trap
For the characteristics of steam adsorption, it is equipped with a liquid nitrogen low temperature cold trap, which can effectively prevent steam from entering the vacuum pump to contaminate the pump oil;
The cold trap can effectively capture high-boiling adsorbent and is an essential device for steam adsorption analysis;
Instruments without cold trap protection, it is impossible to obtain a high degree of vacuum, and the life of the vacuum pump is reduced, and the frequency of pump oil replacement is increased.
Static adsorption process
Adopting the most advanced vacuum static pure steam adsorption process in the world, no carrier gas is required, no gas flows, and the weight of the relatively dynamic carrier gas carrying steam adsorption is higher;
Distillation purification system
The instrument has the most advanced automatic distillation purification system in the world, which can obtain high-purity adsorption steam source, providing a basis for high-precision testing;
The distillation system makes up for the purity defects of the commercially available analytically pure or chromatographically pure reagents, greatly reduces the purity requirements of the reagents, and improves the analysis accuracy.
Anti-condensation full temperature control
For steam adsorption, the PW type instrument is equipped with a full-temperature device, that is, the entire gas path of the test position adsorption chamber sample tube and the reference chamber gas circuit module, the valve group, etc., is closed and constant temperature, the whole adsorption system has no cold point; and the high vacuum is adopted. Air control valve, no electromagnetic valve heating phenomenon, further improve the system thermostat effect;
Intelligent automatic calibration
The instrument microbalance has an automatic calibration function, which can automatically perform the calibration operation before each test to ensure the test accuracy and eliminate the artificial calibration work;
Pneumatic system
Besider's original modular air circuit system, the integrated design of the control valve, to reduce the leakage point to the limit, using 316L stainless steel high vacuum air control valve, the overall system air leakage rate is lower than 10-8torr * m3 / s, The sealing performance is improved by more than 5 times, reaching the level of imported high-end instruments, which greatly improves the stability and accuracy of the instrument; the various parts of the pneumatic system are integrated and modularized, which greatly reduces the failure rate and greatly enhances the stability of the instrument.
Oil and corrosion resistant
All pipelines and valves are sealed with oil and corrosion resistance; all valves are special valves resistant to oil and organic vapor corrosion; the whole system has excellent oil and corrosion resistance, suitable for adsorption and desorption analysis of water vapor, organic steam and petroleum products;
Pipeline diameter
The large diameter is a necessary condition for high vacuum. The large-diameter valve and the pipeline are used for the degassing position and the test position, so that the ultimate vacuum of the vacuum pump is maximized.
Quartz wire insulation seal
The sensor signals such as pressure and temperature in the vacuum chamber adopt the current highest international standard quartz wire insulation sealing technology, with low leakage rate, anti-aging and strong stability;
Intelligent self-test
The airtight automatic detection process intelligently judges whether the airtightness of the instrument is qualified;
Automatic mail notification
With automatic mail notification function, the instrument will automatically send emails to the operator's mobile phone when the test is completed or unexpected, even if the operator is in the business trip, it is convenient to know the running status of the instrument, test progress and view the test results;
Other parameters
Clear graphical graphical control interface, and all hardware control operations on the software interface;
Detailed instrument operation log, accurate to the second, this log provides guarantee for the reliable operation and after-sale of the instrument;
Live voice prompts for each test process; support for multi-language modules that can be customized for editing;
Global procurement, all key components are imported;
Instrument size: H110cm*W100cm*L70cm, Weight: 200kg;
