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Product Details

NHJ400M Helium Mass Spectrometer Leak Detector

NHJ400M Helium Mass Spectrometer Leak Detector

NHJ 400M: Ultra-long distance + ultra-compact

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Key Specifications
Weight26 kg
Response Time≤0.5 s
Start-up Time≤90 s
Interface SizeDN KF25/DN KF16
Working EnvironmentTemperature: 10-40℃ Humidity: ≤80%
Vacuum Minimum Leak Detection Rate3×10-13Pa·m³/s
Overview

Product Overview

NHJ400M Helium Mass Spectrometer Leak Detector

Overview

The NHJ400M leak detector is a modular leak detector, compact in size, can flexibly cooperate with vacuum systems and various gas path combinations to meet various detection needs.

Compact structure design, can be conveniently integrated into leak detection systems according to customer requirements.

Mass spectrometer chamber: 180-degree non-uniform magnetic field U-shaped magnet design, good signal stability, strong resistance to strong magnetic interference.

Dual iridium ion source, strong oxidation resistance, long service life.

Specifications

Technical Specifications

Detailed technical specifications to help you fully understand product performance

NHJ400M Helium Mass Spectrometer Leak Detector Technical Specifications
Weight
26 kg
Language
Chinese/English
Dimensions
420*275*359 mm
Calibration
Internal automatic/External manual
Communication
RS232, RS485, USB
Power/Voltage
DC 24V, 240W
Response Time
≤0.5 s
Start-up Time
≤90 s
Interface Size
DN KF25/DN KF16
Detectable Masses
4He, 3He, H2
Backing Pump Speed
/
Working Environment
Temperature: 10-40℃ 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 Requirement
≥2.5 L/s
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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