Smart Auto Suction Gas Analyzer for Hydrogen - DA-770-H2-100V

  • Manual calibration function
  • Built-in high-resolution A/D converter
  • User-programmable settings for flexible operation
  • Analog 4–20 mA transmitter for long-distance signal transmission
  • Two-step alarm output with relay contact (SPST)

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The DA-770-H2-100V is a benchtop gas analyzer designed for hydrogen detection using a TCD (Thermal Conductivity Detector) principle. It operates with a suction-type detection method and measures hydrogen concentration in the range of 0–100% VOL. The device features a 7-inch TFT LED display (800 × 480) for real-time monitoring and supports analog 4–20 mA output for external signal transmission. It incorporates a high-resolution A/D converter and built-in microprocessor to ensure accurate and stable measurement performance. It is designed to be less susceptible to environmental variations such as temperature, humidity, and pressure, and is unaffected by sample gas flow rate. The analyzer eliminates the need for electrolytes and reduces calibration and maintenance frequency.

Use Cases

  • Typically used in hydrogen and related industrial applications.

Capabilities

  • Measures hydrogen concentration in 0–100% VOL range using TCD principle
  • Provides 4–20 mA analog output and optional RS-485 communication
  • Supports two-step alarm system with configurable alarm delay (0–99 sec)
  • Operates under environmental conditions of -10°C to 60°C and 5–95% RH (non-condensing)
  • Enables data logging via USB 2.0 interface
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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