Products
Refrigerant Sensor
Application:
Leak detection of refrigerant in air conditioningProduct characteristics:
High sensitivityDescription
The MQ-D11D refrigerant gas sensor utilizes a multi-layer thick-film manufacturing process, with heating and measuring electrodes and a metal oxide semiconductor gas-sensing layer formed on a ceramic substrate, encapsulated in a metal housing. The sensor's conductivity changes when the target gas is present in the ambient air. Higher gas concentrations increase the sensor's conductivity. A circuit converts this conductivity change into an output signal corresponding to the gas concentration. This product exhibits excellent interference resistance against common gases such as alcohol and acetic acid.
Specifications
| Model | MQ-D11D | ||
| Sensor Type | Semiconductor flat surfaced sensor | ||
| Standard Encapsulation | Metal Cap | ||
| Detection Gas | Refrigerant gas | ||
| Detection range | 200～10000ppm | ||
| Standard circuit | Loop voltage | Vc | 5.0V±0.1V DC |
| Heating voltage | VH | 5.0V±0.1V DC | |
| Load resistance | RL | Adjustable | |
| sensor features in standard test condition | Heating consumption | PH | ≤350mW |
| Surface resistance | Rs | 0.5～10KΩ(in 2000ppm R290) | |
| Sensitivity | S | 0.4~0.6(R290) Rs(in 3000ppm)/Rs(in 1000ppm) | |
| Standard condition of test | Temperature,humidity | 25℃±2℃;55%±5%RH | |
| Standard test circuit | Vc:5.0V±0.1V; VH:5.0V±0.1V | ||
| Warm-up time | 7 days | ||
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