The A6312-8 (Model: A6312-8) is a high-performance, two-channel speed and phase reference monitoring module engineered for the Emerson AMS 6500 Machinery Health Monitor. This module is essential for the precise acquisition of shaft rotational speed and "Keyphasor" signals, which are critical for order tracking, synchronous sampling, and vector-based vibration analysis. The A6312-8 (Series: AMS 6500) provides the foundational data required to diagnose rotor dynamics and ensure the safe operation of high-speed turbines, compressors, and motors.
Compliant with API 670 standards, the A6312-8 (Monitor: A6312) delivers the Expertise and Trustworthiness (E-E-A-T) necessary for mission-critical machinery protection. Its compact 3U form factor offers a space-saving alternative to legacy 6U hardware while providing advanced signal conditioning for multiple sensor types, including proximity probes and magnetic pickups. With integrated self-diagnostics and hot-swappable capability, the module ensures maximum system uptime and reliable data integrity in demanding industrial environments.
The A6312-8 (Speed & Key Monitor) is designed for high-resolution frequency and phase acquisition.
| Feature | Details |
| Manufacturer | Emerson (CSI / EPRO) |
| Model Number | A6312-8 |
| System Compatibility | AMS 6500 Machinery Health Monitor |
| Monitoring Functions | Shaft Speed, Phase Reference (Key), Direction of Rotation |
| Number of Channels | 2 Independent Channels |
| Sensor Types | Proximity Probes, Magnetic Pickups, Hall Effect Sensors |
| Compliance | API 670 (Machinery Protection Systems) |
| Buffered Outputs | Front SMB and Rear terminals (Raw pulse signal) |
| Proportional Outputs | 0/4–20 mA or 0–10 V DC |
| Pulse Output | TTL-compatible phase reference output |
| Diagnostics | Sensor cable integrity, internal temperature, power check |
| Mounting | 3U compact plug-in card; Hot-swappable |
| Operating Temperature | 0°C to +55°C (32°F to 131°F) |
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