Smart Digital-Process Gas Detector - DA-790

  • Multi-gas detection capability (NOx, SO₂, CO₂, CO, O₂, H₂)
  • Supports multiple detection technologies (NDIR, NDUV, TCD, optical)
  • Configurable system with selectable gas combinations
  • Optional integration with gas probe and moisture cooler
  • Standard industrial outputs: 4–20 mA, RS-485, relay contacts

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The DA-790 is a digital-process gas detector designed for industrial gas analysis applications. It measures multiple gas components including NOx, SO₂, CO₂, CO, O₂, and H₂ using sampling-based gas analysis with NDIR, NDUV, TCD, and optical detection methods. The system is configurable depending on the selected gas combination and supports modular configuration with optional gas probe and moisture cooler. It operates using AC 220V input power and provides standard 4–20 mA output along with RS-485 communication and relay outputs. Each gas channel has specific detection ranges depending on the selected configuration (e.g., NOx: 0–400 ppm, SO₂: 0–300 ppm, O₂: 0–25% VOL, H₂: 0–4% VOL, CO₂: 0–100% VOL, CO: 0–50% VOL).

Use Cases

  • Typically used in hydrogen and related industrial applications.

Capabilities

  • Simultaneous or configurable measurement of multiple gases depending on system setup
  • Provides 4–20 mA analog output and RS-485 communication for system integration
  • Supports two-step relay alarm outputs (AL1, AL2)
  • Operates with AC 220V power supply for industrial installations
  • Modular configuration allows customization based on gas type and accessories (probe, cooler)
GASDNA Co.,Ltd GASDNA Co., Ltd. is a Korean company specializing in gas detectors and analyzers, focusing on hydrogen detection and analysis for the hydrogen economy. Founded in 2004, it has developed innovative gas measurement devices. The company is known for its reliable and smart gas detection solutions.

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