H2 Gas Analyzer - DA-800

  • Built-in microprocessor for signal processing
  • High-resolution A/D converter for accurate measurement
  • 4–20 mA output signal for external system integration
  • Long-distance signal transmission up to 2.5 km
  • 2-stage alarm contacts (AL1, AL2) for external device control

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The DA-800-H2 is a field-indicating transmitter-type gas analyzer designed to detect leakage of hydrogen, neon, argon, and other gases in hydrogen and hydrocarbon streams, particularly in generator cooling systems. It displays gas concentration on-site and converts the detection signal into a standard 4–20 mA current signal for external transmission to controllers or alarm systems. The device utilizes a TCD (Thermal Conductivity Detector) sensor and features a built-in microprocessor with a high-resolution A/D converter for accurate signal processing. It supports long-distance signal transmission (up to 2.5 km) and allows integration with systems such as PLC, DDC, and gas monitoring systems. It offers a measurement range of 0–99.999 %VOL with a digital resolution of 0.001 %VOL. The analyzer operates on DC 24V input power and is certified for hazardous environments.

Use Cases

  • Monitoring hydrogen in generator cooling systems
  • Detection of gas mixtures such as H2/N2 and H2/Air
  • Monitoring hydrogen in hydrocarbon streams
  • Detection of neon and argon mixtures (Ne/N2, Ar/N2, etc.)

Capabilities

  • Measures gas concentration in range 0–99.999 %VOL with 0.001 %VOL resolution
  • Converts sensor signals into standard 4–20 mA output for system integration
  • Supports relay outputs for Alarm 1, Alarm 2, and Fault signals
  • Enables long-distance transmission (up to 2.5 km)
  • Provides LCD-based on-site concentration display
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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