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Phone: +86 16626708626Description
The Emerson A6370D is an overspeed protection monitor, part of the AMS 6300 Safety Instrumented System (SIS), designed specifically to prevent catastrophic overspeed conditions in rotating machinery such as turbines, pumps, and compressors. It is typically rack-mounted in a 19-inch rack (84HP width and 3RU height) and works in conjunction with the A6371 system backplane.
Key Uses and Applications
- Protects critical machinery by detecting overspeed events and providing fast shutdown signals to prevent damage or safety hazards.
- Used primarily in energy, power generation, and industrial processing facilities where machinery speed control is crucial.
- Supports various speed sensor types including eddy-current sensors, Hall effect sensors, and magnetic (VR) sensors.
- Configured typically in triple redundancy (3 protection monitors plus one backplane) for maximum reliability.
A6370D
A6370D
Key Technical Features
- Sensor Voltage Supply: Nominal -24.5 V DC, short-circuit proof with galvanic isolation.
- Signal Input Ranges: Supports eddy-current & Hall element sensors (0-26 V), magnetic (VR) sensors (1 Vpp to 30 V RMS).
- Frequency Range: 0 to 20 kHz signal processing.
- Digital Inputs/Outputs: 4 galvanically separated inputs, 7 short-circuit proof digital outputs, and additional analog current outputs (0/4-20 mA).
- Communication: USB configuration interface, RS485 bus supporting Modbus RTU, and Profibus DP for the A6370D/DP variant.
- Reaction Times: Very fast, e.g., 12.5 ms in Automatic mode at 3000 rpm.
- Safety and Compliance: Certified IEC 61508 up to SIL 3, meets API 670 machinery protection standards.
- Environmental: IP20 protection, operating temperature -20°C to +65°C, vibration and shock resistant.
- Dimensions: 3RU height, 84HP width, depth ~43 mm; Weight ~490 g.
Summary
The A6370D is a highly reliable, SIL 3 certified digital overspeed protection monitor for heavy-duty industrial machines. Its fast reaction capability, wide sensor compatibility, and rigorous safety certifications make it essential for safe operation of turbines, compressors, and critical rotating equipment in demanding industrial environments.
