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Winsen MC115 Catalytic Combustible Gas Sensor Pair Module

₹1,109.00 (Inclusive of all taxes)
Out of Stock

The Winsen MC115 is a catalytic combustion sensor module designed for detecting a wide range of combustible gases including methane (natural gas), LPG, CO, and alkanes. It provides a linear voltage output proportional to gas concentration, suitable for integration into industrial gas detectors, alarm systems, and concentration meters.

Features

  • Catalytic combustion sensing principle for reliable detection of combustible gases.
  • Linear voltage output (20-40 mV/1% CH4) with ≤5% linearity for accurate concentration measurement.
  • Robust metal encapsulation for durability in industrial environments (-40°C to +70°C).
  • Fast response (≤10s) and recovery (≤30s) times for 90% of full scale.
  • Simple drive circuit with integrated test and temperature-compensating reference elements.

Out of stock

Description

The Winsen MC115 sensor operates on the catalytic combustion principle. Its sensing bridge consists of a test element and a compensating element. When combustible gases contact the active test element, its resistance increases, causing a proportional change in the bridge output voltage relative to gas concentration. The compensating element provides critical temperature and humidity compensation, ensuring stable readings across varying environmental conditions.

This sensor is engineered for industrial safety applications, offering excellent repeatability, selectivity, and resistance to common interferents like H2S and organosilicone compounds. Its metal housing ensures long-term stability and protection, making it a core component for fixed gas detection systems requiring reliable performance over an extended lifespan.

Key Features

  • Catalytic combustion detection for methane (natural gas), LPG, CO, and alkanes.
  • Linear analog voltage output (20-40 mV per 1% CH4) with ≤5% linearity error.
  • Wide operating temperature range from -40°C to +70°C.
  • Fast 90% response time ≤10 seconds and recovery time ≤30 seconds.
  • Integrated temperature and humidity compensation via a reference element.
  • Robust metal encapsulation for industrial durability and long lifespan.
  • High resistance to poisoning from H2S and organosilicone vapors.
  • Simple 3.0V ±0.1V DC drive circuit with low current consumption (~105mA).

Applications

  • Fixed industrial combustible gas leak detection and alarm systems.
  • Concentration monitoring for natural gas, LPG, and alkane processing facilities.
  • Safety instrumentation for petrochemical plants and refineries.
  • Portable and stationary combustible gas detectors and meters.
  • Building automation and HVAC safety monitoring for fuel-fired equipment.

Technical Specifications

Manufacturer Part NumberMC115
Sensor TypeCatalytic Combustion
Detection GasesMethane (Natural Gas), LPG, CO, Alkanes
Measurement Range0 - 100% LEL
Sensitivity20 to 40 mV / 1% CH4
Linearity≤ 5%
Operating Voltage3.0V DC ±0.1V
Working Current105 mA ±10 mA
Response Time (T90)≤ 10 seconds
Recovery Time (T90)≤ 30 seconds
Operating Temperature-40°C to +70°C
Operating Humidity< 95% RH (non-condensing)
Housing MaterialMetal
Dimensions (Diameter x Height)Φ6 mm x 6.5 mm

Frequently Asked Questions

What is the operating voltage for the Winsen MC115 sensor?

The Winsen MC115 requires a precise 3.0V DC ±0.1V power supply. Operating outside this voltage range can affect sensor sensitivity, linearity, and lifespan. It draws a typical working current of 105mA ±10mA. A stable, regulated power source is recommended for optimal performance.

Which gases can the MC115 sensor detect?

The MC115 is designed to detect a range of combustible gases using catalytic combustion. Its primary target gases include methane (the main component of natural gas), liquefied petroleum gas (LPG), carbon monoxide (CO), and various alkanes. It provides a linear voltage output proportional to the gas concentration up to 100% Lower Explosive Limit (LEL).

How do I interface with the MC115 sensor module?

The MC115 provides an analog voltage output. It features a Wheatstone bridge configuration with two active elements: one for sensing and one for compensation. The output signal is the voltage difference across this bridge, which changes linearly with gas concentration. This analog signal can be read directly by a microcontroller's ADC or through a signal conditioning circuit.

What is the sensor's response and recovery time?

The sensor has a fast response time (T90) of ≤10 seconds, meaning it reaches 90% of its final output signal within 10 seconds of gas exposure. The recovery time (T90) is ≤30 seconds, indicating it returns to within 10% of its baseline reading 30 seconds after the gas is removed. These specs are measured under standard test conditions.

Is the MC115 suitable for industrial environments?

Yes, the MC115 is built for industrial use. Its metal encapsulation provides physical durability, and it operates across a wide temperature range from -40°C to +70°C with humidity up to 95% RH. It also features good resistance to common industrial poisons like hydrogen sulfide (H2S) and organosilicone compounds, ensuring long-term stability in harsh settings.

Package Includes

  • 1 x Winsen MC115 Catalytic Combustible Gas Sensor (1 pair)

Additional Information

Weight 0.01 kg
Dimensions 0.6 × 0.6 × 0.65 cm