Suction Type Gas Detectors DA-800-CO

Local Gas Sampling Systems | Suction Type Gas Monitoring

The DA-800 is your advanced solution for detecting and monitoring a range of combustible, toxic, and VOC gases in industrial settings. This versatile gas detector caters to gas producers, users, reservoirs, and more, providing crucial real-time density information.

As an indicator and transmitter, the DA-800 efficiently transforms detection signals into standard current signals and transmits them to external devices. Its LCD screen displays sensor data, offering a clear gas density reading while simultaneously converting it into a 4-20mA standard current output. This makes it ideal for integrating with various controllers, such as Gas Leakage Alarm Systems (GMS1000, GMS2000), PLCs, DDCs, and MMRs, enabling the creation of comprehensive gas monitoring systems tailored to your unique needs. Keep your industrial operations safe and efficient with the DA-800.


  • Smart Processing: Built-in microprocessor for intelligent functions, enhancing convenience, accuracy, and efficiency in gas detection.

  • High-Resolution Output: Equipped with an HD A/D converter for precise signal accuracy.

  • Reliable Alarms: LOW/HIGH 2-step relay contacts (AL1/AL2) enable seamless external device integration, such as fans.

  • Stable Transmission: 4-20mA output ensures reliable, long-distance signal transmission (up to 2.5km).

  • User Customization: User-programmable menu allows personalized operating functions, tailoring the device to your specific needs.

Technical Properties:

  • Gas Sampling: Suction Type
  • Density Display: LCD Display (User-Settable PPM, %LEL, %vol)
  • Input Power: DC 20V-30V
  • Explosion Proof: Ex d IIB+H2 T6 (Korea Gas Safety Certification)
  • Target Gases: Combustible, Toxic, O2, VOC
  • Detection Principle: NDIR (Nondispersive Infrared)
  • Suction Flow Rate: 0.2 l/min - 2.5 l/min
  • Suction Distance: Up to 100m
  • Measurement Range: Refer to Target Gas List (Page 16)
  • Accuracy: ≤ ±2% of Full Scale
  • Response Time: Within 10 seconds (90% of Full Scale)
  • Sensor Calibration: AUTO-CALIBRATION with Magnetic Switch
  • User Programming: Calibration Density & Measurement Range
  • Wiring: CVVS & CVVSB 1.5sq*3 Wire
  • External Output: 4mA-20mA (Transmits up to 2.5Km)
  • Alarm Output: 2-Step Alarm Relay Contacts (HIGH/LOW)
  • Operating Temperature: -20°C to 60°C
  • Operating Humidity: 5% - 95% RH (Non-Condensing)
  • Wire Conduit: 1/2” or 3/4” PF, NPT
  • Housing Material: Cast Aluminum Alloy
  • Mounting: Wall or Pipe Station