MNS-4SO2-20 Electrochemical Sulfur Dioxide SO2 Gas Sensor

Product Description

MNS-4SO2-20 Electrochemical Sulfur Dioxide Gas Sensor

The MANORSHI MNS-4SO2-20 is an electrochemical gas sensor designed for sulfur dioxide (SO2) detection.

The target gas undergoes corresponding oxidation-reduction reactions at the working electrode and counter electrode, releasing electric charges. These charges generate a current through the external circuit, and the current is proportional to the gas concentration, enabling quantitative measurement of sulfur dioxide. MNS-4SO2-20 Sulfur dioxide gas …

Key Features

  • High stability

  • Quick response and recovery

  • Strong adaptability to the environment

Technical Specifications

Parameter

Specification

Product Model

MNS-4SO2-20

Target Gas

Sulfur Dioxide (SO2)

Detection Principle

Electrochemical

Measuring Range

0–20 ppm

Maximum Load

100 ppm

Sensitivity

0.5 ± 0.1 μA/ppm

Response Time

≤30 s

Resolution

0.1 ppm

Bias Voltage

0 mV

Linearity

Linearity up to 20 ppm and within ±5%

Long-Term Stability

<15% Signal Value/Year

Temperature Range

-30°C to +50°C

Pressure Range

800–1200 mbar

Humidity Range

15%–95% RH, Non-condensing

Storage Temperature

0°C to +20°C

Service Life

>2 Years

Warranty Period

1 Year

Maximum O/C Voltage

0.75 V

Maximum S/C Current

<1.0 A

Maximum Current at 150 ppm

<0.1 mA

Long-Term Output Drift

<15%/Year

Cross-Interference

Interfering Gas

Concentration

Output Signal

CO

300 ppm

<1 ppm

H2S

25 ppm

<0.5 ppm

NO

50 ppm

0–5 ppm

C2H2

10 ppm

<30 ppm

CL2

15 ppm

<1 ppm

H2

400 ppm

<1 ppm

NH3

20 ppm

0 ppm

Applications

  • Industrial SO2 gas detection

  • Environmental protection monitoring

  • Industrial emission monitoring

  • Sulfur dioxide detection equipment

  • Environmental gas monitoring systems

Frequently Asked Questions

What gas does the MNS-4SO2-20 detect?

The MNS-4SO2-20 is designed for sulfur dioxide (SO2) detection.

What sensing principle does it use?

It uses an electrochemical sensing principle.

What is the measuring range?

The specified measuring range is 0–20 ppm.

What is the maximum load?

The specified maximum load is 100 ppm.

What is the sensitivity?

The specified sensitivity is 0.5 ± 0.1 μA/ppm.

What is the response time?

The specified response time is ≤30 seconds.

What is the resolution?

The specified resolution is 0.1 ppm.

Does the sensor require a bias voltage?

The specified bias voltage is 0 mV.

What is the operating temperature range?

The specified temperature range is -30°C to +50°C.

What is the expected service life?

The specified service life is more than 2 years.

What applications is it suitable for?

The datasheet specifies SO2 detection in industrial and environmental protection applications.

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