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תיאור
מסדרת NHJ400 גלאי דליפות ספקטרומטר מסה מימן הליום
Performance description
NHJ-400 series leak detector is a fully automatic mobile helium mass spectrum leak detector, mute wheel design, suitable for many harsh vacuum industry.
*Using helium mass spectrometry and inverse diffusion principle, using 180° inhomogeneous magnetic field and automatic control technology. Automatic helum peak scanning, automatic calibration and automatic range switching are realized.
*lt has the characteristics of short start time, fast operation speed, high detection sensitvity and strong anti-interference ability.
*lt has the characteristics of short start time, fast operation speed, high detection sensitvity and strong anti-interference ability.
מסדרת NHJ400 גלאי דליפות ספקטרומטר מסה מימן הליום
מאפייני ביצועים
*Unique gas path design, can avoid dust into the instrument interior
*Multi-mode function input, תְפוּקָה, easy to connect a variety of automation equipment
*Double iridium ion source,strong antioxidant capacity and long service life
*The machine is effectively separated from the circut, avoiding the interference of temperature, electromagnetic field and so on.which makes the leak detector run more stable and reliable
use mobile phone APP remote over-control leak detector to start, stop, zero. Real-time monitoring leak detectorshows leakage
*Multi-mode function input, תְפוּקָה, easy to connect a variety of automation equipment
*Double iridium ion source,strong antioxidant capacity and long service life
*The machine is effectively separated from the circut, avoiding the interference of temperature, electromagnetic field and so on.which makes the leak detector run more stable and reliable
use mobile phone APP remote over-control leak detector to start, stop, zero. Real-time monitoring leak detectorshows leakage
מסדרת NHJ400 גלאי דליפות ספקטרומטר מסה מימן הליום
פרמטר טכני
Vacuum minimum leak detection rate | 3×10-13 Pa · m3/s |
Vacuum leakage rate display range | 1×10-1 ~ 1×10-13Pa · m3/s |
Minimum leak detection rate for suction gun | 5×10-9Pa ·m3/s |
Range of leakage rate of suction gun | 1×10-1 ~ 1×10-9 Pa· m3/s (zero ) |
Detectable masses | He4,H2 |
Start time | ≤100 s |
זמן תגובה | ≤0.3S |
Leak Pressure | ≤2000 Pa |
Mainframe Power / מתח | 100-120V,6OHz/200-240V,50הרץ |
work environment | טֶמפֶּרָטוּרָה: 5-40 ℃ Humidity: ≤ 75% |
שפה | Chinese/English |
גודל | 620*370*1027 מ"מ |
מִשׁקָל | 110 ק"ג |
Display units | Pa · m3/s . mbar-l/s,atm – cc/s,Torr·L/s,ppm |
Configuration table
NHJ-400P | NHJ-400L | |
משאבת ואקום | Super power double-stage rotary vane mechanical pump | |
Molecular pump | Germany Pufa | Leibao, גֶרמָנִיָה |
Vacuum valve | Customized leak detector imported from Germany | |
מסך תצוגה | • | • |
WIFI | 0 | 0 |
Cart | • | • |
Remote controler | 0 | 0 |
Suction gun | 0 | 0 |
Big leak detection | • | • |
Large leakage protection | • | • |
Molecular pump Temperature alarm | 0 | 0 |
vacuum pump Temperature alarm | 0 | 0 |
External leak | • | • |
Built-in leak | 0 | 0 |
Data saving | • | • |
Auto-zero | • | • |
Display interface | Graph, histogram, numerical display | |
I/o interfaces | RS232,RS485,USB External control input/output, analog output interface | |
אופציונאלי :0 | אביזרים סטנדרטיים: • | |
Leak Detection
Negative pressure method
*Vacuum the sealed chamber inside the inspected product
*Apply helium gas on the outer surface of the product under inspection
*Leak detector detects changes in helium content inside the workpiece
*The precise location of the leak can be realized
*Apply helium gas on the outer surface of the product under inspection
*Leak detector detects changes in helium content inside the workpiece
*The precise location of the leak can be realized
Positive pressure method
*The sealed chamber is filled with helium under certain pressure
*When a leak occurs,helium leaks through the leak through the surrounding atmosphere
*Detection of helium concentration increments in surrounding atmosphere by suctionmethod The precise location of the leak can be realized
*When a leak occurs,helium leaks through the leak through the surrounding atmosphere
*Detection of helium concentration increments in surrounding atmosphere by suctionmethod The precise location of the leak can be realized
Back pressure method
Place the inspected product in a pressurized helium chamber for a certain period of time
Remove the residual helium from the surface
Put the inspected product into the leak detector connected with the leak detector;
Take the maximum leakage rate for a certain time
Remove the residual helium from the surface
Put the inspected product into the leak detector connected with the leak detector;
Take the maximum leakage rate for a certain time
