①The hydrogen module is equipped with overpressure protection and dual anti-backflow alkali liquid devices, ensuring safe and reliable instrument operation with no liquid backflow.
②An automatic tracking and monitoring device for output flow is installed, with intuitive and convenient LED display. The gas generation and output remain stable; the instrument can continuously produce high-purity hydrogen without purity degradation.
③It features an automatic water replenishment function requiring no manual operation. The unit can run continuously 24 hours a day all year round as long as the external water bucket is filled. Additionally, the instrument is fitted with fault protection for the automatic water replenishment system. If the water pump runs continuously for more than one minute without stopping, the system identifies a water supply fault. The control board protection will cut off power to the water pump and trigger a low-frequency "beep-beep-beep" alarm to eliminate risks such as electrolyte overflow caused by prolonged pumping, which could damage other equipment.
④Hydrogen leakage alarm protection is integrated. When the hydrogen output flow stays at or above the preset alarm threshold for 15 consecutive minutes, the switching power supply will automatically cut off power. The LED digital screen displays "000" accompanied by a high-frequency "beep-beep-beep" leakage alert tone. The alarm threshold is 150 mL/min for the QPH-S300 model and 250 mL/min for the QPH-S500 model.
⑤A special built-in water removal device is adopted, which consumes no spare parts and boasts a long service life, delivering stable performance during long-term 24-hour operation.
⑥This instrument adopts a separated structure for the electrolytic cell and liquid storage tank. This design extends the water replenishment cycle and the service life of the water supply system. It also accelerates heat dissipation of the electrolytic cell to maintain low cell temperature, further prolonging the cell’s service life.
A special purification unit is installed inside the instrument to effectively improve gas quality and guarantee stable chromatographic baseline.
⑦A special purification unit is installed inside the instrument to effectively improve gas quality and guarantee stable chromatographic baseline.
①The instrument is equipped with an HL-A unit that automatically adsorbs and removes hydrocarbons, esters, oil and other contaminants from air, greatly improving air quality with zero maintenance required.
②Dual stainless steel air storage tanks with automatic drainage function, which prevents yellow rust water discharge and laboratory contamination.
③All gas flow channels adopt 316L stainless steel tubing, and the gaskets are made of PTFE. Air leakage caused by gasket aging is completely avoided. The pipes are electrolytically polished and ultrasonically cleaned.
④Low-pressure startup effectively extends the service life of the compressor.
⑤Compact size and low noise, ideal for laboratory applications.
⑥Two-stage pressure stabilization delivers high output pressure precision. Two-stage overpressure protection devices provide comprehensive safety safeguards.
⑦The instrument is fitted with a two-stage water removal system featuring automatic regeneration, maintenance-free. It significantly cuts labor maintenance costs and time, boosts work efficiency, and eliminates air leakage failures resulting from inadequate manual maintenance.
| Instrument model | QPHA-S3000 |
| Hydrogen purity | ＞99.999％ |
| Maximum hydrogen output flow rate | 300ml∕min |
| Hydrogen output pressure | 0.4 Mpa |
| Maximum air output flow | 3000ml∕min |
| Air quality | Dry, oil-free, three-stage purified clean gas |
| Air output pressure | 0.4 MPa |
| Airborne particulate matter | 0.01μm |
| Pressure stability accuracy | <0.001MPa |
| Output gas dew point: H2 | -40℃ AIR: -60℃ |
| Water supply system fault protection start time | Continuous hydration for 60 seconds |
| Hydrogen leak alarm value | ≧150ml/min |
| Noise level | <45dB |
| Working power supply | 220V±10％﹔50HZ±5％ |
| Maximum power | 800W |
| Environmental conditions | Ambient temperature: 0-35℃, relative humidity: ≤85%, no large amounts of dust or corrosive gases, good ventilation, no direct sunlight. |
| Overall dimensions | 525×360×665mm |
| Weight | 47KG |
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