Introduction
The document provides technical specifications and operational details for the TOX 592 sensor by ADOS GmbH, designed for measuring concentrations of toxic gases, specifically carbon monoxide (CO).

Measurement Principle
The sensor operates on an electrochemical reaction principle. The target gas diffuses into a chemical cell where it reacts at the electrodes, generating a current proportional to the gas concentration.

Specifications

• Measurable Substance: Carbon Monoxide (CO)
• Measurement Range: 0 – 150 ppm, 0 – 300 ppm (other ranges available on request)
• Accuracy: ± 3% of the full-scale range
• Response Time (t90): Less than 60 seconds
• Operating Temperature: -10 °C to +40 °C
• Humidity: 10% – 99%, non-condensing
• Power Supply: 15 V – 30 V
• Interface: 4-20 mA or LON®-Four-wire technology
• Protection Class: IP 30
• Sensor Dimensions: Diameter 80 mm, Height 80 mm
• Weight: 600 g
• Certification: TÜV approval according to VDI 2053

Applications

• Monitoring and controlling air quality in garages and laboratories
• Ensuring workplace safety by monitoring maximum allowable concentration levels
• Air quality surveillance in residential and large protection areas

Technical Operation
The sensor uses a chemical cell where CO reacts at the anode and cathode, producing a measurable current. This current is processed by a connected evaluation unit, such as the Multitronik 592, which displays the concentration in ppm and can trigger control and warning functions.

Additional Gases
The sensor can also measure other gases such as Ammonia (NH3), Nitrogen Dioxide (NO2), Sulfur Monoxide (SO2), and Hydrogen Sulfide (H2S) with specified ranges. Additional gases and measurement ranges are available upon request.