Technical parameters:
| Model specifications | QL-HA200 | QL-HA300 | QL-HA500 | |||
| technical parameter | hydrogen | air | hydrogen | air | hydrogen | air |
| Output flow rate (ml/min) | 0-200 | 0-3000 | 0-310 | 0-3000 | 0-510 | 0-3000 |
| Output pressure (MPa) | 0-0.4 | |||||
| Power supply voltage (V) | 220±15%V 50～60Hz | |||||
| Input power (W) | ＜ 250 | ＜300 | ＜450 | |||
| Net weight of the whole machine (kg) | ＜45 | |||||
| Dimensions (L * W * H) mm | 440×485×350 | |||||