Sulfur Dioxide Sensor

The sulfur dioxide sensor operates based on electrochemical or optical principles to detect the concentration of sulfur dioxide in gases. It generates signals through electrode reactions or spectral absorption changes, and is used in environmental monitoring, industrial process control, and food safety fields.
Selection
When selecting, consider the matching of detection range and accuracy to meet requirements, environmental adaptability including the impact of temperature and humidity, response time and lifespan suitable for the usage scenario, compatibility with existing equipment interfaces, maintenance cycles and calibration convenience, and refer to real-world industry cases to verify stability.

Terms

Standards

Instruments

Designed with flameproof and explosion-proof structure, Response Time is less than 30 seconds, accuracy +/- 3% FS, can detect 0-20ppm sulfur dioxide concentration, support 4-20mA and RS485 signal output, suitable for harsh industrial environments.

$ 251.00

Using electrochemistry principle to detect 0-100ppm sulfur dioxide, with 4G/WIFI wireless communication, IP66 Protection Rating, four Alarm modes and 12-55 hours battery life, support remote paraMeter configuration and temperature compensation algorithm.

$ 588.00

8Mm thick PVC reinforced rigid plastic plate box, sulfur dioxide concentration adjustment range of 600~ 10000ppm, equipped with corrosion-resistant silicone airway and alkali solution exhaust gas treatment system, temperature control accuracy +/- 0.5 ℃.

$ 15823.00

Electrochemical sensor, detection accuracy +/- 2% F. S, Response Time less than 10 seconds, with intrinsically safe circuit design and explosion-proof certification, support a variety of signal output and remote monitoring functions.

$ 528.00

Electrochemical sensor technology, detection accuracy +/- 2% F. S, Response Time less than 10 seconds. With Intrinsic Safety (IS) design and IP66 Protection Rating, it supports a variety of signal output interfaces, suitable for harsh industrial environments.

$ 708.00

Electrochemical sensor technology, detection accuracy +/- 2% F. S, Response Time less than 10 seconds, with explosion-proof certification and IP66 Protection Rating, support a variety of signal output and remote monitoring functions.

$ 614.00

Electrochemical sensor principle, detection range 0-10000ppm, Response Time less than 10 seconds, with explosion-proof certification and IP66 Protection Rating, support a variety of signal output and remote monitoring functions.

$ 708.00

Electrochemical sensor to achieve 0-150ppm range detection, Response Time less than 10 seconds, with Intrinsic Safety (IS) design and automatic Zero tracking function, support multi-level calibrating and temperature compensation, compatible with various Control systems.

$ 528.00

Electrochemical sensor, sulfur dioxide detection range 0-20ppm, resolution 0.1ppm, with IP65 Protection Rating and 12864 point matrix display, support sound, light, vibration triple Alarm mode.

$ 235.00

Imported Electrochemical sensor, Response Time less than 10 seconds, accuracy +/- 2% F. S, with intrinsically safe circuit design and automatic Zero tracking function, support a variety of signal output and remote monitoring.

$ 787.00

Using MCU chip to achieve low power consumption operation, detection error ≤ +/- 3% F. S, Response Time ≤ 30 seconds, with explosion-proof structure and a variety of signal output interfaces, support remote monitoring and alarm functions.

$ 719.00

Using MCU chip to achieve low power consumption operation, detection error ≤ +/- 3% F. S, Response Time ≤ 30 seconds. With flameproof structure, it supports 4-20mA, RS485 and switch output, and can be linked to fan and other control equipment.

$ 267.00

Pump suction sampling, Response Time T90 ≤ 20s, detection accuracy ≤ +/- 3%, built-in 4000mAh battery, can store 120000 sets of data, with Temperature Humidity detection function.

$ 469.00

Equipped with 2.4-inch high definition color screen, support 1-6 Sensor expansion, range 0~ 10ppm, Response Time ≤ 20s, with a variety of output modes and Protection Ratings, adapt to harsh environments.

$ 488.00

Using industrial-grade Sensor and micro-control technology, Response Time T90 is less than 60 seconds, with waterproof, dustproof and explosion-proof characteristics, round and durable shell, continuous use of not less than 8 hours.

$ 248.00

Articles

Difference between Black Panel Temperature and Black Standard Temperature in Light Aging Test Chambers
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Dart impact tester measures the toughness of packaging film.
The dart impact test evaluates the material's resistance to damage under dynamic impact, i.e., its toughness, by allowing a dart to fall freely and strike the packaging film. During the test, different impact energies are simulated by adjusting the weight of the dart or the drop height, and sensors are used to detect whether the film ruptures.
Electronic universal testing machine measures film tensile strength.
This article introduces the method of measuring the tensile strength of thin films using an electronic universal testing machine. During the test, the machine applies tensile force to the film sample, records the maximum tensile force and displacement through sensors, and then calculates the tensile strength using a formula.
Selection of Temperature and Humidity Meters: Sensor Accuracy and Response Time
When selecting a temperature and humidity meter, sensor accuracy and response time are key parameters. Accuracy refers to how close the measured value is to the actual value, typically expressed as an allowable error, with high-precision sensors being more costly.
In the selection of illuminance meters, sensor type and measurement range are key considerations.
This article introduces the key points for selecting sensor types and measurement ranges when choosing an illuminometer.
Performance Comparison of Electrochemical Sensors and Infrared Sensors in Multi-Gas Detectors
This article compares the performance of electrochemical sensors and infrared sensors in multi-gas detectors.
Karl Fischer Moisture Analyzer for Determining Moisture Content in Coatings
This article introduces a method for determining the moisture content in coatings using a Karl Fischer moisture titrator. It is based on the quantitative reaction of reagents such as iodine and sulfur dioxide with water, and calculates the moisture content by measuring the amount of reagent consumed during titration.
Weighing lower limit of microbalances and selection basis
The lower weighing limit of a microbalance refers to the minimum mass that can be measured while ensuring accuracy, which is crucial for the reliability of experimental data. It is influenced by factors such as sensor sensitivity, structural resistance to interference, and environmental stability.
Experimental Verification of Stroke Accuracy on Coating Thickness Repeatability for Desktop Automatic Film Applicators.
This article investigates the influence of the stroke accuracy of a desktop automatic coating machine on the repeatability of coating thickness. The experiment monitored the blade position deviation using high-precision sensors and measured the coating thickness, revealing that smaller stroke deviations lead to better repeatability in coating thickness.
Karl Fischer Moisture Analyzer Determines Moisture Content in Powder Coatings
This article introduces the method of determining the moisture content in powder coatings using a Karl Fischer moisture analyzer. Excessive moisture content in powder coatings can affect the quality of the coating, leading to issues such as bubbles. The Karl Fischer method measures moisture through the quantitative reaction of iodine and sulfur dioxide, which is divided into volumetric and coulometric methods.
Karl Fischer moisture analyzer detects moisture content in hot melt adhesives.
This article introduces the method of using a Karl Fischer moisture analyzer to detect the moisture content in hot melt adhesives. The Karl Fischer method is based on the quantitative reaction of iodine, sulfur dioxide, and water, and calculates the moisture content by measuring the amount of iodine consumed.
Key points for operating a hot melt adhesive softening point tester
The hot melt adhesive softening point tester is used to measure the softening temperature of materials when heated, which is important for quality control. Before operation, ensure that the ambient temperature is around 23 degrees, place the instrument level, check if the heating oil is clean, and calibrate the sensor.
Karl Fischer Moisture Analyzer for Determining Water Content in Coatings
This article introduces the method for determining the water content in coatings using the Karl Fischer moisture analyzer. The principle is based on the quantitative reaction of iodine and sulfur dioxide in the reagent with water. The coulometric method is commonly used to generate iodine through electrolysis and calculate the moisture content by measuring the electrical charge.
Spectrophotometric Determination of Sulfur Content by Ultraviolet Fluorescence Method
The determination of sulfur content by ultraviolet fluorescence spectrophotometry involves burning the sample to convert sulfur into sulfur dioxide, which is then excited by ultraviolet light to produce fluorescence for detection.
Karl Fischer Moisture Titrator for Determining Solvent Moisture
The Karl Fischer moisture meter determines solvent moisture based on the quantitative reaction of iodine and sulfur dioxide with water in an alkaline environment.