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AT0602 Explosion Proof Oxgen / Toxic / VOC Gas Detector
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AT0602

Explosion Proof Oxgen / Toxic / VOC Gas Detector

  • ● Powered by AC220V, independent operation.
  • ● Non-instrusive debugging with infrared remote control
  • ● Digital sensor assembly, replaceable without on-site calibration
  • ● IP66 protection grade for more harsh enviorment
  • ● High-brightness digital tube display
  • ● Supports offline detection on solenoid valves
  • ● Supports connection to wireless solenoid valves
  • ● Supports automatic valve shut-off upon power outage
  • ● Direct interlocking to shut off industrial solenoied valves
  • ● Supports centralized monitoring and control via IoT cloud platform
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product details
product description

Description

The AT0602 is a versatile multi-gas explosion-proof detector specially developed for monitoring oxygen concentration, toxic gases and VOCs in hazardous industrial environments. Unlike conventional combustible gas detectors, it focuses on non-flammable hazardous gas monitoring, covering a wider range of industrial safety demands. It adopts an independent AC220V power supply design, enabling standalone stable operation without an additional control unit, suitable for decentralized monitoring in various working scenarios. Infrared remote control is supported for non-intrusive debugging, allowing safe and convenient parameter configuration without disassembling the equipment. The digital sensor assembly supports plug-and-play replacement, requiring no on-site calibration after replacement, which greatly improves maintenance efficiency. With an IP66 protection grade, it is resistant to dust and water intrusion, ensuring stable performance in harsh industrial environments. It is equipped with a high-brightness digital tube display for clear real-time data reading. The device supports offline solenoid valve detection, wireless valve connection, automatic power-failure valve shut-off and direct interlock control for industrial valves. It also enables remote centralized monitoring and management through an IoT cloud platform, providing a reliable safety solution for chemical plants, laboratories, waste treatment facilities and other sites with toxic and VOC gas risks.

Detector Specification

Model AT0602
Measuring gas Oxgen / Toxic / VOC gases
Measuring type Diffusion type
Measuring method Electrochmical / Infrared / PID / Semiconductor
Measuring Range Depend on sensor type
Response time Depend on sensor type
Accuracy Depend on sensor type
Operation mode display Normal / High Alarm / Low Alarm / Trouble LED
Measuring value display Digital tube
Power AC220V / 50Hz
Alarm signal output Built-in light and sound alarm
Output signal Option: 4-20mA / NB-IoT / 4G / 2.4G
Relay output Two-channel adjustable relay output, AC220V/1A One-channel DC24V pulse output, DC24V/2A
Conduit connection Standard: 3xM26x1.5P Option: FPT3/4',NPT3/4''
Mounting type Wall/Pole/Ceiling mount
Operating temperature Infrared: -40°C ~ +70°C Electrochemical: -20°C~+50°C PID:  -20°C~+55°C
Operating humidity 5 to 95% RH (Non-condensing)
Housing Material Aluminum alloy
Dimensions 157.5(W) x 178.4(H) x 90(D) mm
Explosion Proof Ex db IIC T6 Gb
Certification Refer to website

Sensor Specification

Sensor Type Measuring Gas Molecular Formula Measuring Range Operating Temperature Typical Life Response Time
Infrared Type Combustible gases / 3-100%LEL -40~+70℃ 60 month <30sec / 90% scale
Carbon dioxide CO₂ 0~2%vol -40~+70℃ 60 month <45sec / 90% scale
Nitrous oxide N₂O 0-1000ppm -40~+70℃ 60 month <45sec / 90% scale
Electrochemical Type Carbon Monoxide CO 0-50 ppm -20~+50°℃ 24 month <10sec / 90% scale
Hydrogen Sulfide H₂S 0-20ppm -20~+50°℃ 24 month <12sec / 90% scale
Sulfur dioxide SO₂ 0-20ppm -20~+50°℃ 24 month <10sec / 90% scale
Ammonia NH₃ 0-100ppm -20~+50°℃ 24 month <50sec / 90% scale
Oxygen O₂ 0~30%vol -20~+50°℃ 24 month <15sec / 90% scale
Formaldehyde CH₂O 0-2ppm -20~+50°℃ 24 month <15sec / 90% scale
Chlorine Cl₂ 0-5ppm -20~+50°℃ 24 month <25sec / 90% scale
Bromine Br₂ 0-5ppm -20~+50°℃ 24 month <60sec / 90% scale
Hydrogen chloride HCL 0-15ppm -20~+50°℃ 24 month <30sec / 90% scale
Hydrogen Fluoride HF 0-7ppm -20~+50°℃ 18 month <30sec / 90% scale
Hydrogen Bromide HBr 0-10ppm -20~+50°℃ 24 month <70sec / 90% scale
Hydrogen Cyanide HCN 0-3ppm -20~+50°℃ 24 month <10sec / 90% scale
Nitrogen Dioxide NO₂ 0-20ppm -20~+50°℃ 24 month <20sec / 90% scale
Nitric oxide NO 0-20ppm -20~+50°℃ 24 month <30sec / 90% scale
Silane SiH₄ 0-15ppm -20~+50°℃ 24 month <60sec / 90% scale
Ethylene oxide C₂H₄O 0-20ppm -20~+50°℃ 24 month <25sec / 90% scale
Vinyl chloride C₂H₃CL 0-10ppm -20~+50°℃ 24 month <90sec / 90% scale
Carbon disulfide CS₂ 0-5ppm -20~+50°℃ 24 month /
Acrylonitrile C₃H₃N 0-2ppm -20~+50°℃ 24 month <30sec / 90% scale
Carbonyl chloride (phosgene) COCl₂ 0-1ppm -20~+50°℃ 24 month <30sec / 90% scale
*Photoionization (PID) Type Volatile organic compounds VOCs 0-2000ppm -40~+60℃ 12 month <5sec / 90% scale
Semiconductor Type Organic combustible vapors / 0~2000ppm -40~+60℃ 36 month /
Freon and halogenated compounds / 0~2000ppm -40~+60℃ 36 month /

*The specific range of the PID sensor for detecting different gases needs to be determined according to different situations.

Sensor Features

Semiconductor Type High Sensitivity : Detects low-concentration gases with noticeable changes in electrical signals.
Fast Response : Rapid alteration of semiconductor electrical conductivity upon gas adsorption enables quick detection.
Broad-Spectrum : Detects most volatile organic compound (VOC) vapors .
Long Lifespan & Cost-Effectiveness : Simple structure, low manufacturing cost, and stable long-term performance, making it suitable for cost-sensitive scenarios.
Infrared (IR) Type Mature Dual-Compensation Technology : Utilizes non-dispersive infrared (NDIR) with dual detectors (measurement/reference channels) to compensate for environmental interference, enhancing detection accuracy.
High Sensitivity & Stability : Detects gases based on their characteristic absorption of specific infrared wavelengths, unaffected by oxygen concentration.
No Poisoning Risk : No chemical reactions occur, preventing sensor degradation due to gas exposure.
Low Power Consumption : Suitable for long-term continuous monitoring.
Works in Oxygen-Free Environments : Operates without requiring oxygen participation.
Fast Response, Low Maintenance, Long Lifespan : Simple mechanical structure ensures minimal performance decay over time.
Electrochemical Type High Precision (ppm-Level) : Detects extremely low concentrations of toxic gases (typically at ppm-level detection limits).
Linear Output : Concentration and signal exhibit a linear relationship, facilitating quantitative analysis.
High Selectivity : Designed with gas-specific electrode reactions, resisting cross-interference (e.g., CO-dedicated electrodes are minimally affected by hydrogen).
Stable Performance : Minimal long-term drift.
Photoionization (PID) Type Extremely High Precision (ppb~ppm-Level) : Detects extremely low concentrations of VOCs.
Linear Output : Concentration and signal show a linear correlation, enabling precise measurements.
Fast Response : Instantaneous detection of signal changes when UV light excites gas molecules to produce ions.
Broad-Spectrum : Suitable for most volatile organic compounds (VOCs) (e.g., benzene series, halogenated hydrocarbons, alcohols, ketones, etc.).

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