Description
Overview
The MMS6312 dual‑channel rotational speed monitor is part of Emerson’s Machine Monitoring Systems portfolio, designed for precise speed measurement and overspeed protection in rotating equipment. Its two independent channels allow simultaneous monitoring of separate shafts or redundant sensing on a single shaft, supporting high‑integrity protection architectures in critical industrial processes.
Functional Characteristics
The MMS6312 processes pulse‑based speed signals from proximity probes or magnetic pickups and converts them into real‑time rotational speed values. Its internal logic supports configurable alarm thresholds, trip levels, and speed‑related diagnostics, enabling operators to detect abnormal acceleration, deceleration, or overspeed conditions.
The module’s compact form factor and rugged construction ensure stable operation in environments with vibration, temperature fluctuations, and electrical noise. Designed for long‑term reliability, it integrates seamlessly into DCS‑based protection systems and legacy MMS6000 racks.
Technical Specifications
| Parameter |
Specification |
| Model |
MMS6312 |
| Product Type |
Dual‑Channel Rotational Speed Monitor |
| Brand |
Emerson |
| Product Range |
Machine Monitoring Systems |
| Origin |
USA |
| Weight |
0.24 kg |
| Dimensions |
3.1 × 19 × 12.9 cm |
| System Compatibility |
DCS |
| Input Type |
Pulse‑based speed signals (proximity probe / magnetic pickup) |
| Channels |
2 independent speed channels |
| Alarm Functions |
Configurable speed alarms and trip thresholds |
| Construction |
Industrial‑grade housing |
| Certification |
ISO 9001:2015 |
| HS Code |
8537101190 |
| MOQ |
1 |
| Lead Time |
In Stock |
Performance Notes
-
Dual‑channel architecture supports redundant protection or multi‑shaft monitoring.
-
High‑accuracy speed calculation suitable for turbines, compressors, and high‑speed rotating machinery.
-
Designed for continuous operation with stable signal processing under electrical interference.
-
Modular design allows quick installation and replacement within MMS6000 racks.
Application Scenarios
-
Turbine overspeed protection
-
Compressor speed monitoring
-
Multi‑shaft machinery synchronization
-
Condition monitoring and predictive maintenance
-
Safety‑critical rotating equipment in power generation and petrochemical plants
FAQ
Q: What sensors can be used with the MMS6312? A: It accepts pulse‑type inputs such as proximity probes and magnetic pickups commonly used in speed measurement.
Q: Can the MMS6312 be used in redundant protection systems? A: Yes. Its dual‑channel design supports redundant speed monitoring for safety‑critical applications.
Q: Is the module still supported despite being discontinued? A: It is discontinued, but replacement units remain available for existing MMS6000 installations.
