Digital guide
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Yokogawa EGD400G
- Product Name: EGD400G Gas Density Monitor
- Product Series: EGD Series Gas Density Monitoring Devices
- Technical Specifications: Operating temperature range: -20 °C to +60 °C; supply voltage: 24 VDC; measuring range: gas density relative to SF₆; communication interface: Modbus‑RTU; protection grade: IP67; measuring accuracy: ±1% FS
Detailed content
- Functional Features: Real‑time continuous gas density measurement; gas leakage early warning function; digital signal output; self‑diagnosis and fault alarm function; data logging capability
- Performance Parameters: Response time ≤5 s; long‑term stability ≤0.5% FS per year; pressure compensation integrated
- Material Composition: Main housing: die‑cast aluminum alloy; sensing element: high‑precision ceramic pressure sensor; sealing components: fluorine‑based rubber
- Structural Characteristics: Compact integrated structure; wall‑mount or flange‑mount installation structure; explosion‑proof shell design
- Working Principle: Measures gas pressure and ambient temperature simultaneously, calculates real‑time gas density via built‑in algorithm, outputs standard digital signals
- Advantages & Highlights: High measurement stability; anti‑interference performance; maintenance‑free long‑term operation; wide temperature adaptability
- Applicable Industries: Power transmission and distribution industry, substation SF₆ gas monitoring, high‑voltage electrical equipment supporting monitoring
- Installation Requirements: Vertical installation; wiring distance ≤1000 m; avoid direct sunlight exposure and strong vibration environments
- Usage Precautions: Regular calibration every 2 years; avoid corrosive gas contact; keep surface clean and dry
