NHJ-600series leak detector is a fully automatic portable helium mass spectrum leak detector, small volume, suitable for precision, fast and portable vacuum industry and research institutes.

Using helium mass spectrometry and inverse diffusion principle, using 180° inhomogeneous magnetic field and automatic control technology. Automatic helium peak scanning, automatic calibration and automatic range switching are realized.

It has the characteristics of portable, fast start, fast operation, high sensitivity, accurate and rapid.

The unique gas path design increases the pumping speed of helium, shortens the time for clearing the helium background, and effectively prevents helium pollution.

The leak detection port is equipped with a customized precision filtration device, which can effectively prevent debris particles or copper powder from entering the instrument.

It has multi-mode function input and output, making it easy to connect with various automation equipment.

The mechanical and electrical circuits are effectively separated to avoid mutual interference from temperature, electromagnetic fields, etc., making the leak detector operate more stably and reliably.

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

Technical parameter

Vacuum minimum leak detection rate	3×10-13Pa·m³/s
Vacuum leakage rate display range	1×10-1 ~1×10-13 Pa·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	H2，He3，He4
Start time	≤90 S
Response time	≤0.3 S
Leak Pressure	≤2000 Pa
Mainframe Power / Voltage	100-120V、60Hz/200-240V、50Hz
Work environment	Temperature: 5-40 ℃; Humidity: ≤ 75%
Language	Chinese/English
Size	620*370*480 mm
Weight	55 Kg
Display units	Pa·m³/s 、mbar·l/s、atm·cc/s、Torr•L/s、ppm

Stripping metal button, one-click automatic emptying.

Hand-held remote control unit, up to 150 meters remote detection.

Ram wifi connection, noi tech app, remote control.

Automatic zero-adjusting, automatic range switching.

The custom software of the leak detector can be compiled according to the customer's request.