The NHJ400 Series Helium Mass Spectrometer Leak Detector adopts a split design featuring a mass spectrometer structure

and a backing pump,simple structure, superior performance,suitable for many industries. Using the principle of helium mass spectrum and inverse diffusion, using 180°non-uniformmagnetic field and automatic control technology, automatic helium peak scanning, automatic zero adjustment andautomatic range switching are realized, which have the characteristics of high detection speed, high detectionsensitivity and strong anti-interference ability.

Large leakage detection function: can be through the preset pressure, empty time, cannot reach the preset value, leakdetector automatic alarm prompt.

A variety of units of measurement selection, detection data real-time update, direct output to generate Excel tables.

Multiple large leakage protection modes to adequately protect ionic sources from being oxidized and exposed to atmosphere when molecular pumps are not impacted.

The unique gas path design improves the pumping speed of helium, shortens the cleaning time of helium background,

and effectively prevents helium contamination.

Leak detection port equipped with: custom precision filter device, can effectively avoid debris particles or copper powder into the instrument inside. Multi-mode function input, output, easy to connect a variety of automation equipment. The machine is effectively separated from the circuit, avoiding the interference of temperature, electromagnetic field and so on, which makes the leak detector run more stable and reliable. The minimum leak detection rate is low, the sensitivity is high.

Technical Parameter