NHJ-400NM helium mass spectrometer leak detector

Introduction to NHJ-400NM helium mass spectrometer leak detector:

The NHJ-400 is a fully automatic mobile helium mass spectrometer leak detector with a long, compact size and superior performance for a wide range of industries. Using the principle of helium mass spectrometry and reverse diffusion, using imported molecular pump, 180° non-uniform magnetic field and fully automatic control technology, automatic peak scanning, automatic zero adjustment, automatic calibration and automatic range switching are realized, with fast detection speed and detection. High sensitivity and strong anti-interference ability.

Features of NHJ-400NM helium mass spectrometer leak detector:

1. The unique gas path design improves the pumping speed of the sputum, shortens the background time of cleaning, and effectively prevents cockroach pollution.

2. Leak detection port: Customized precision filter device can effectively prevent debris particles or copper powder from entering the instrument.

3. Multi-mode function input and output, easy to connect various automation equipment.

4. The machine and the circuit are effectively separated to avoid mutual interference of temperature and electromagnetic field, so that the operation of the leak detector is more stable and reliable.

5. The minimum detectable leak rate is low, the sensitivity is high, and the detection range reaches 11 levels.

Technical parameters of NHJ-400NM helium mass spectrometer leak detector:

 Minimum detectable leak rate: 5×10-13Pa•m3/s

 Leakage display range: 1×10-3 ~ 1×10-13Pa•m3/s

Minimum leak detection rate of sniffer: 1×10-8Pa•m3/s

 Sniffer leak rate display range: 1×10-3 ~ 1×10-9Pa•m3/s

 Start-up time: ≤ 2 min

 Response time: ≤ 1 S

Leak detection pressure: 1500Pa

Power requirements: 220V ± 10% / 50Hz

Display unit: Pa•m3/s, mbar•l/s, atm•cc/s, ppm

Working environment: Temperature 5 ~ 40 °C, corresponding humidity ≤ 80%

Weight : ≤80KG