HQ-200 hydrogen-nitrogen leak detector
One Unit, Quadruple Capability
The detector is a "all-in-one" integrated design, consolidating a pressure decay leak tester, H2 -N2 leak detector, gas recharging system, and exhaust emission system into a single platform.
Accuracy innovation
It can achieve a detection accuracy of 5*10^-8Pa·m³/s, which is 1000 times the accuracy of traditional air tightness instruments.
Detect major leaks
Original addition of large leakage detection function to improve detection efficiency and reduce hydrogen consumption
Sniff more
The HQ-100B handheld series supports multi-point sniffing and can locate multiple leak points.
Product Overview

Hirays Hydrogen-Nitrogen Leak Detector addresses the limitations of traditional leak detectors— low  accuracy, helium-based system complexity, and high costs-delivering precision micro-leak localization  for industries including new energy batteries, semiconductor manufacturing, refrigeration, medical  devices, and chemical processing. This high-precision sensing technology enhances production safety  and quality control efficiency.

Specifications
Performance parametersresolution0.01ppmWorking environment parametersambient temperature0~50℃ 
Minimum detectable leak (sniff mode)

5x10-8Pa·m³/s use 5% H2

ambient humidity≤ 95%RH (no condensation) 
Minimum detectable leak (measurement mode)0.5ppmpower supplyAC220V(±15%)50Hz 
response time≤ 1spower150W 
Standard gas pressure adjustment range (tracer gas), other pressures can be customized0-5MPaAir source0.4~0.8MPa (clean and dry)
Optional range of standard gas concentration (tracer gas), other concentrations can be customized0-50000ppm(5%H2+95%N2


Sensor maximum overload concentration2000ppm


Sensor pressure range80kPa~120kPa


Warm up time<2min


RS232/485 interface1


Number of external output points4 way relay


External input points4 NPN inputs


Maximum setting time3200 seconds


Test interface displaydigital interface


system languageChinese / English


Application Examples
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