Portable Pump-Action Sulfur Dioxide Gas Detector

The instrument actively draws ambient gas through a built-in air pump. The gas undergoes an electrochemical reaction with sulfur dioxide at the sensor, generating a current signal, and the concentration value is displayed in real time. It is used for leakage monitoring and safety protection in working environments during processes such as ink drying in printing factories and paper bleaching.
Selection
When making a selection, pay attention to whether the flow rate of the sampling pump matches the detection requirements, the lifespan and anti-interference capability of the sensor, check if the explosion-proof rating is suitable for the working environment, confirm the data recording function and alarm types, and consider the device’s weight and battery life.

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

Support 4 kinds of gas simultaneous detection, integrated temperature Humidity monitoring, physical + software double revisit Humidity compensation, with zero automatic correction function, Response Time T90 ≤ national standard, detection accuracy ≤ +/- 3% FS.

$ 1050.00

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

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

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

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

Simultaneously detect 4 kinds of gases and integrate temperature and Humidity detection, adopt dual temperature Humidity compensation design, Response Time T90 ≤ national standard, with a variety of wireless communication options and remote paraMeter configuration functions.

$ 635.00

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

Support simultaneous detection of 4 kinds of gases, integrated temperature Humidity detection function, physical + software double revisit Humidity compensation, Response Time T90 ≤ national standard, detection accuracy ≤ +/- 3% FS, with a variety of alarm and remote monitoring capabilities.

$ 658.00

Using industrial grade Sensor to detect nitrogen dioxide gas, range 0~ 20ppm, resolution 0.1ppm, Response Time T90 < 60s, with waterproof, dustproof and explosion-proof characteristics, small and durable.

$ 248.00

Pump sampling to ensure detection speed and accuracy, can store 100,000 detection data, with color high definition display and dual alarm function, battery life 10-60 hours, Explosion-proof level EXia II CT6.

$ 612.00

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

Supports simultaneous detection of 4 gases and integrated temperature and humidity detection, adopts dual temperature and humidity compensation design, has Internet of Things remote monitoring function, Response Time T90 ≤ national standard, Protection Rating IP66.

$ 749.00

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

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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.
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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.
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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.
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.
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The Karl Fischer moisture meter determines solvent moisture based on the quantitative reaction of iodine and sulfur dioxide with water in an alkaline environment.