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Summary:
The gas-sensitive material used in the MQ316 odor sensor is a semiconductor material with low conductivity in clean air. When there is a gas to be measured in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of the gas to be measured increases. Use a simple circuit to convert the change in conductivity into an output signal corresponding to the gas concentration .
Feature:
This product has high sensitivity to ethanol, hydrogen sulfide, and methyl mercaptan in a wide concentration range, and has the advantages of long life, low cost, simple driving circuit, etc.
APPLICATION
Formaldehyde detector is an instrument for detecting formaldehyde. Generally, semiconductor sensors and electrochemical sensors are used to realize the rapid semi-quantification of formaldehyde in indoor air on the spot, which is characterized by simple structure, small size, intuitive,easy to carry and use.
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PARAMETER
Technical Data Sheet
Model No. | MQ316 | ||
Sensor Type | Semiconductor | ||
Standard Encapsulation | Metal | ||
Target Gas | Ethanol, hydrogen sulfide, methyl mercaptan | ||
Detection range | 5~ 200ppm ethanol | ||
Standard Circuit Conditions | Loop Voltage | VC | 3.0V±0.1V DC |
Heater Voltage | VH | 0.9V±0.1V AC or DC | |
Load Resistance | RL | Adjustable | |
Sensor character under standard test conditions | Heater Resistance | RH | 4.0Ω±0.5Ω(room temp.) |
Heater consumption | PH | ≤150mW | |
Sensitivity | S | Rs(in air)/Rs(10ppm alcohol)≥2 | |
Output Voltage | △Vs | 1.0~3.0V (in 10ppm C2H5OH) | |
Concentration Slope | α | ≤0.6(R50ppm/R10ppm C2H5OH ) | |
Standard test conditions | Tem. Humidity | 20℃±2℃;50%±10%RH | |
Standard test circuit | VC: 3.0V±0.1V; VH: 0.9V±0.1V |
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Preheat time | Not less than 48 hours |

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