| Conditions | No. | Affect the amount of | Rated Conditions |
| Work environment conditions | 1 | Ambient temperature | 5~40℃ |
| 2 | Relative humidity | Not more than 80% | |
| 3 | Atmospheric pressure | 70~106Kpa | |
| Power source | 4 | Supply Voltage | 220Va.c±22Va.c |
| 5 | Power frequency | 50Hz±1Hz | |
| Gas source | 6 | Gas sample temperature | 5~40℃ |
| 7 | Gas sample inlet pressure | 15Kpa~0.1Mpa | |
| 8 | Sample gas flow | Not more than 80L / h |