Key Features
Robust & reliable – Built to withstand overpressure, overcurrent, reverse polarity, lightning strikes, and electromagnetic interference. The product has passed long‑term aging and stability testing to ensure consistent operation over time.
Submersible design – Specifically designed for open tank level measurement, the diaphragm sensor can be submerged directly into the liquid. Suitable for a wide range of applications including petroleum, chemical, mining, power generation, water conservancy, pharmaceutical, food processing, and textiles.
Flexible output options – Provides standard industrial 4‑20mA analog output. Optional 1‑5V output or intelligent HART protocol communication available upon request. Also supports on‑site LED or LCD display for local reading.
High accuracy – Available in accuracy classes of 0.1%FS, 0.2%FS, or 0.5%FS to suit different application requirements.
Excellent value – Offers exceptional performance at a competitive price point.
Technical Highlights (No Table)
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Measurement range: 0–200 meters (user‑selectable)
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Output signal: Analog 4‑20mA / 1‑5V; Smart 4‑20mA with HART protocol
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Power supply: 24V DC (standard); 12–36V DC; 18.5–45V DC; or 220V AC, 50Hz
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Accuracy: 0.1%FS / 0.2%FS / 0.5%FS (selectable)
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Process connection: Thread, clamp, flange, or diaphragm type (custom thread sizes and diaphragm materials available)
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Explosion protection: Standard, flameproof ExdIIBT4, or intrinsically safe ExiaIICT6
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Electrical connection: Direct lead wire, explosion‑proof connection, or terminal block (custom options available)
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Overload pressure: 1.7 times the maximum measurement range
Why Choose This Transmitter
Stable and reliable – Imported sensitive components ensure minimal temperature drift, excellent stability, and high measurement accuracy.
Built tough – Compact and rugged construction with strong resistance to overload and impact. Designed for harsh industrial environments with waterproof, dustproof, shockproof, and corrosion‑resistant properties.
Easy to install – Versatile mounting options allow installation in virtually any orientation.
Simple to operate – User‑friendly design with straightforward operation and strong practicality.
Anti‑interference – Superior electromagnetic interference protection ensures stable readings even in electrically noisy environments.
Typical Applications
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Open tank liquid level measurement
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Reservoir and dam water level monitoring
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Chemical storage tank level control
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Pharmaceutical and food processing vessels
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Mining slurry level measurement
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Power plant water treatment systems
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Industrial automation and process control
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Gas and liquid pressure measurement in various industrial settings
Customization Options
The YD‑322A can be tailored to your specific requirements:
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Display type: LED digital, LCD digital, or 0–100% linear pointer meter
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Output signal: 4‑20mA, 1‑5V, or HART protocol
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Process connection: Thread, clamp, flange, or diaphragm type — custom thread sizes and diaphragm materials available
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Electrical connection: Direct lead wire, explosion‑proof connection, or terminal block
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Explosion protection: Standard, flameproof, or intrinsically safe
