Description
Ethylene oxide (ETO) gas sensor detects 0-100 ppm with electrochemical technology, 200 ppm max load, 1 ppm resolution, and ≤120s response time. Works in 90-110 kPa pressure and -30°C to 50°C temperatures.
Specification
| Model | ATO-S4-ETO |
| Detection Principle | Electrochemical Three-Electrode |
| Detected Gas | Ethylene Oxide (ETO) |
| Detection Range | 0-100 ppm |
| Maximum Load Concentration | 200 ppm |
| Sensitivity | 250 ±100 nA/ppm |
| Zero Drift | 0-10 ppm |
| Resolution | 1 ppm |
| Response Time | ≤120s |
| Operating Pressure | 90 to 110 kPa |
| Temperature Range | -30°C to 50°C |
| Humidity Range | 15%RH to 90%RH (Non-condensing) |
| Repeatability | < ±2% Signal/Month |
| Long-term Stability | < 2% Signal/Year |
| Linearity | Linear up to 200 ppm |
| Service Life | 2 years |
Dimension (Unit: mm)
Crossover Interference
The ethylene oxide (ETO) gas sensor also responds to gases other than the target gas. For reference, the response characteristics of the sensor to several common interfering gases are listed in the table below. The data in the table are typical responses of interfering gases at a given concentration.
| Gas | Chemical Formula | CF Factor |
| Ethylene Oxide | CH₂CH₂O (ETO) | 1 |
| Carbon Monoxide | CO | 1.6 |
| Vinyl Chloride | C₂H₃Cl | 2.5 |
| Methanol | CH₃OH | 0.3 |
| Isobutylene | (CH₃)₂C=CH₂ | 0.9 |
| Ethanol | CH₃CH₂OH | 0.8 |
| Formic Acid | HCOOH | 1.4 |
| Formaldehyde | CH₂O | 0.4 |
Basic Test Circuit
Application
Ethylene oxide (ETO) gas sensor can be used in industrial plants, transportation tunnels, energy and electric power, petroleum and petrochemical coal mine tunnel, instrumentation, fruit trees and gardens, farms and pastures, agricultural greenhouses, floriculture, laboratories and so on.
Tips: What is ethylene oxide (ETO), and why is it important to detect?
Ethylene oxide (ETO) is a colorless, flammable gas with a sweet odor, widely used in sterilization, fumigation, and chemical production. It is highly toxic and classified as a carcinogen, making accurate gas detection essential in workplaces where ETO is used. Prolonged exposure can cause respiratory issues, eye irritation, and severe health risks, necessitating real-time monitoring to ensure safety and compliance with industrial regulations.
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