NHJ800D Helium Mass Spectrometer Leak Detector

The NHJ800D dry vacuum pump mobile helium mass spectrometer leak detector is an oil-free and contamination-free leak detector.

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Key Specifications
Weight110 kg
Dimensions620*370*1027 mm
Response Time≤0.5 s
Start-up Time≤90 s
Working EnvironmentTemperature: 5-40℃ Humidity: ≤80%
Vacuum Minimum Leak Detection Rate3×10-13Pa·m³/s

Product Overview

NHJ800D Helium Mass Spectrometer Leak Detector

Overview

Internally uses a dry pump, with high environmental requirements, needs to operate in a cleanroom.

Compact design, no oil mist contamination.

Utilizes helium mass spectrometry and counter-diffusion principles, adopting 180° non-uniform magnetic field and automatic control technology.

Features short start-up time, fast operation speed, high sensitivity, reliable performance, and no contaminant removal.

Large leak detection function: by presetting pressure and idle time, if the preset value is not reached, the leak detector will automatically alarm and prompt.

Multiple measurement units selectable, real-time update of detection data, directly output to generate Excel spreadsheets.

Rotatable 7-inch color touch screen, the operator can adjust the orientation in any way for comfort.

Large leak protection mode, completely protects the ion source from oxidation and exposure to atmosphere without affecting the molecular pump.

Other Features

  • Large leak detection function: By presetting pressure, when the preset value is not reached during evacuation, the leak detector will automatically alarm and issue a prompt.
  • Multiple measurement units are available for selection. Detection data is updated in real time and can be directly output to generate Excel spreadsheets.
  • Multiple large leak protection modes can completely protect the ion source from oxidation and protect the molecular pump from exposure to atmosphere.
  • The handheld remote control unit can remotely control the detection within a distance of up to 150 meters without obstacles.

Technical Specifications

Detailed technical specifications to help you fully understand product performance

NHJ800D Helium Mass Spectrometer Leak Detector Technical Specifications
Weight
110 kg
Language
Chinese/English
Dimensions
620*370*1027 mm
Display Units
Pa·m³/s, mbar·l/s, atm·cc/s, Torr·L/s, ppm
Leak Pressure
≤2000 Pa
Response Time
≤0.5 s
Start-up Time
≤90 s
Detectable Masses
4He, 3He, H2
Main Power/Voltage
100-120V, 60Hz / 200-240V, 50Hz
Working Environment
Temperature: 5-40℃ Humidity: ≤80%
Sniffer Leak Rate Range
1×10-2 ~1×10-9 Pa·m³/s(zero)(1×10-2 ~1×10-9 Pa·m³/s(zero))
Backing Pump Speed (m³/h)
15 m³/h
Vacuum Leak Rate Display Range
1×10⁻² ~1×10⁻¹³ Pa·m³/s
Vacuum Minimum Leak Detection Rate
3×10-13Pa·m³/s
Sniffer Minimum Detectable Leak Rate
5×10-9 Pa·m³/s

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