| Measuring principle | Zirconium dioxide |
| Display mode | 320×240 graphic dot matrix color LCD |
| Measuring range | 0 ~ 10/100/1000ppm / 1.00% / 25.00% O2 |
| Measurement accuracy |
0~1000ppm /1.00% / 10.00% / 25.00% ≤±1% FS 0~100ppm ≤±2% FS 0~10ppm ≤±5%FS |
| Resolution | 1ppm |
| Repeatability | ≤±1% |
| Response time | T90 ≤ 30S |
| Analog output |
4~20mA.DC (non-isolated output, load resistance less than 500 ohms) 0~10V.DC (non-isolated output, load resistance greater than 10K ohms) 1 way programmable dry contact passive alarm output, contact maximum capacity 220VAC/2A |
| Other interface | RS232 (default) or RS485 |
| Power supply | AC85 ~ 264V 50/60Hz |
| Sample gas temperature | -10 ~ +50℃ |
| Sample gas flow | 2 ~ 2.5l/min |
| Sampling mode | Extract air, ejection or extract air ejection |
| Sample gas pressure | micro positive pressure, micro negative pressure or normal pressure |
| Background gas | mixed gas such as N2 and inert gas |
| Size | 127mm × 266mm × 278mm (H × W × D) |
| Hole size | 129mm × 212mm (H × W) |
| Service life | >4 years (under normal use conditions) |
| Air circuit interface | NPT 1/8 internal thread |
| Installation method | placed or embedded |