| Product model | MP-3B | ||
| product type | Planar semiconductor gas sensor | ||
| Standard package | Metal packaging | ||
| Gas detection | alcohol | ||
| Detection concentration | 0~ 500ppm (alcohol) | ||
| Standard circuit conditions | Loop voltage | VC | ≤24V DC |
| Heating voltage | VH | 2.5V±0.1V AC or DC | |
| Load resistance | RL | Adjustable | |
| Characteristics of gas sensors under standard test conditions | Heating resistance | RH | 11 Ω ± 3 Ω (room temperature) |
| Heating power consumption | PH | ≤350mW | |
| Sensitive body resistance | RS | 5K Ω～ 50K Ω (in50ppm) | |
| (essence) | |||
| sensitivity | S | RS (in air) / RS (50ppm) | |
| Precision ≥ 3 | |||
| Concentration slope | α | ≤ 0.6 (r300ppm / r50ppm alcohol) | |
| Standard test conditions | Temperature and humidity | 22℃±2℃；55%±5%RH | |
| Standard test circuit | V:2.5V±0.1V；C | ||
| V:2.5V±0.1VH | |||
| Preheating time | Not less than 48 hours | ||
After sale instructions
