Alkatronik Mq-7 Gaz Sensör Modülü Mq7 Kömür Gazı Karbonmonoksit Sensörü

MQ-7 Gaz Sensörü

Karbon monoksit gaz ölçüm sensör modülüdür. Analog ve dijital çıkış verebilen yapıda tasarlanmıştır.

MQ-7 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). Detection method using low temperature cycling ( heating) detect carbon monoxide, airborne sensor conductivity increases with the increase of the concentration of carbon monoxide gas, high temperature ( heating) cleaning stray gas adsorption at low temperature. Using a simple circuit can be changes in the conductivity, concentration of the gas is converted to the corresponding output signal. MQ-7 gas sensor with high sensitivity for carbon monoxide, this sensor can detect a variety of gases containing carbon monoxide, is a low-cost sensors for a variety of applications,

Module Applications:

For home, carbon monoxide detection device environment. Suitable for carbon monoxide and gas detection.

Module Features:

• Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
• With a DO switch signal (TTL) output and AO analog signal output;
• TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module)
• The analog output voltage, the higher the concentration the higher the voltage.
• The carbon monoxide detection with better sensitivity.
• There are four screw holes for easy positioning;
• With a long service life and reliable stability
• High sensitivity and good selectivity for CO
• Rapid response and recovery characteristics
• Detecting Range: 10 to 1000ppm
• Sensitivity: R in air/R in typical gas5
• Response Time150s(70% Response)
• Recovery Time150s(70% Response)
• Heating Resistance 313
• Heating
• Heating Power about 350mW
• Measuring Voltage24V
• Long service life and reliable stability.
• Operating Condition:
• Ambient Temperature-20+55
• Humidity: 95%RH
• Environment oxygen content: 21%
• Storage Condition:
• Temperature: -20 to +70
• Product Dimensions: 32 (L) * 20 (W) * 22 (H)

Electrical Properties:

• Input voltage: DC5V power (current): 150mA
• Digital Output: TTL digital 0 and 1 ( and 5V)
• Analog Output .3 V (relatively clean), the highest concentration of voltage around 4V
• Special note: The sensor is powered, needs to warm up around 20S, measured data becomes stable, the sensor fever is a normal phenomenon, because the internal heating wire, if hot is not normal.

MQ-7 ( )

Sensitive for Carbon Monoxide

The heater uses an alternating voltage of 5V and

A library for the MQ-7 :

The MQ307A (also on this page) is like this sensor, but uses a lower heater voltage.

Search for datasheet:

Paket İçeriği:

• 1 Adet MQ-7 Sensor Modül