| Test principle | zirconium dioxide |
| Display mode | 128×64 matrix dot LCD |
| Test range | 0 ~ 10/100/1000ppm / 1.00% / 25.00% O2 |
| Resolution | 1ppm |
| Accuracy |
0~1000ppm /1.00% / 10.00% / 25.00% ≤±1% FS 0~100ppm ≤±2% FS 0~10ppm ≤±5%FS |
| Repeatability | ≤±1% |
| Response time | T90≤30S |
| Analog output |
4~20mA.DC(non-isolated output, loaded resistance lower than 500 Ohm) 0~10V.DC(non-isolated output, loaded resistance higher than 10k Ohm) 1 way programmable alarm output (Dry contact type, maximum load 220VAC/2A) |
| Communication port | RS232 (default) or RS485 |
| Power supply | AC85 ~ 264V 50/60Hz |
| Temperature of the sample gas | -10 ~ +50℃ |
| Sample gas flow | 400 ~ 600ml/min |
| Sampling mode | extraction way, ejection way, extraction and ejection way |
| Sample gas pressure | micro positive pressure, micro negative pressure or normal pressure |
| Background gas | N2 and inactive gaseous mixture |
| Appearance Size | 133mm×268mm×300mm(H×W×D) |
| Install Hole Cut | 135mm×228mm(H×W) |
| Serving life | >4 years(under normal use) |
| Gas circuit port | NPT 1/8 internal thread |
| Install mode | frame mount |