Digital guide
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Yokogawa EGD400G
- Product Name: EGD400G Gas Analyzer / Zirconia Oxygen Analyzer Transmitter Module
- Product Series: ZR Series Gas Analyzer Accessory Module
- Technical Specifications: Operating temperature range: -20 °C to +55 °C; Power supply: 24 VDC ±10%; Signal output: 4‑20 mA analog signal; Measurement range: 0‑100 vol% O₂ standard; Response time ≤5 s; Protection class: IP66
Detailed content
- Functional Features: Real‑time oxygen concentration measurement; On‑site gas analysis data transmission; Built‑in self‑diagnosis function; Temperature compensation circuit integrated; Anti‑interference signal transmission
- Performance Parameters: Measurement accuracy: ±0.5% FS; Long‑term stability: ≤0.2% FS/year; Warm‑up time: ≤10 min; Operating humidity: 5‑95% RH non‑condensing
- Material Composition: Die‑cast aluminum alloy housing; High‑temperature resistant ceramic sensor core; Stainless steel sealing components; Fluorosilicone gaskets
- Structural Characteristics: Compact modular structure; Detachable sensor‑transmitter connection; Terminal block wiring structure; Wall‑mount installation base
- Working Principle: Adopts zirconia solid electrolyte oxygen concentration cell principle; Generates millivolt potential proportional to oxygen partial pressure via Nernst equation; Converts potential signal to standard industrial analog output after circuit processing
- Advantage Highlights: High measurement precision; Rapid response speed; Strong anti‑corrosion capability; Low maintenance frequency; Wide environmental adaptability
- Applicable Industries: Power generation industry; Petrochemical industry; Metallurgical industry; Cement manufacturing; Waste incineration industry
- Installation Requirements: Vertical wall‑mount installation; Ambient vibration ≤4.9 m/s²; Keep away from high‑temperature radiation sources; Wiring separation of power and signal cables
- Usage Precautions: Avoid long‑term exposure to strong corrosive gas; Regular calibration every 6‑12 months; Prevent water condensation inside the module; Do not disassemble sealed internal components without authorization
