Product Short Description
Product Series
VIBRO-METER MPC4 Rack Mount Turbomachinery Monitoring & Protection System
Product Brief
4-channel modular rack-based machinery protection controller designed for critical gas/steam turbine, compressor and generator condition monitoring; integrates vibration, temperature and rotational speed measurement with certified safety trip relay outputs for machinery safety interlock systems.
Description
Technical Specifications
- Input Channel Count: 4 multi-type universal measurement channels
- Supported Sensor Inputs: Eddy current probes, accelerometers, velocity transducers, RTD temperature sensors, tachometer speed probes
- Vibration Measurement Bandwidth: 0.5 Hz to 15 kHz
- Temperature Measurement Range (RTD Pt100): -200 °C to +800 °C
- Rotational Speed Range: 0 RPM to 100,000 RPM
- Output Interfaces: 8 isolated safety relay trip contacts, 4 x 4–20 mA analog retransmission, Ethernet Modbus TCP, RS485 Modbus RTU
- Power Supply: Dual redundant DC 24 V power input
- Form Factor: 4U 19-inch rack plug-in module
- Operating Temperature Range: 0 °C to +65 °C
Functional Features
- Universal multi-type channel accepts vibration, temperature and speed sensors without hardware modification
- SIL 2 certified hardwired relay safety trip contacts independent of digital communication bus
- Independent configurable warning and shutdown trip thresholds with adjustable delay filtering per channel
- Onboard non-volatile data logging for vibration waveform snapshots and threshold event history
- Ethernet Modbus TCP communication for high-speed DCS/SCADA system data integration
- Continuous sensor cable breakage and short-circuit fault detection with dedicated alarm signaling
Structural Characteristics
- Module housing: Shielded aluminum extrusion enclosure with internal galvanic circuit isolation
- Backplane connection: VIBRO-METER proprietary MPC series rack bus connector
- Front panel: Color LCD touch display for live measurement viewing, parameter configuration and diagnostic access
- Heat management: Passive convection cooling with zero internal fan components
Working Principle
Multi-channel analog front-end circuitry conditions raw sensor analog signals; dedicated digital signal processors compute vibration magnitude, temperature value and rotational speed metrics; measured values are compared against safety threshold limits to actuate hard relay trip outputs, while processed data is logged and transmitted over industrial communication buses to plant control systems.
Advantage Highlights
- Single module integrates vibration, temperature and speed monitoring reducing rack hardware footprint
- SIL 2 safety certification valid for critical turbomachinery emergency shutdown safety loops
- Dual redundant power input eliminates single-point power supply failure risk
- Fanless passive cooling supports continuous 24/7 unattended operation
- Combined Modbus TCP and RTU dual communication compatible with all modern plant control platforms
Applicable Industries
Combined cycle power plant gas/steam turbine protection, offshore platform centrifugal compressor monitoring, industrial hydrogen compressor safety surveillance, power generator bearing condition monitoring
Installation Requirements
- Install module within standard VIBRO-METER MPC series 19-inch rack chassis
- Separate sensor signal wiring from high-voltage AC power cabling with minimum 30 cm clearance
- Wire SIL 2 rated trip relay contacts directly into machinery emergency shutdown safety circuit
- Terminate Modbus communication bus with 120 Ω end-of-line resistors at bus chain endpoints
Operation Precautions
- Execute full channel threshold simulation test quarterly to verify trip relay functional integrity
- Maintain rack cabinet ambient temperature below +65 °C to eliminate measurement thermal drift
- Use factory specified shielded low-capacitance cables for all vibration sensor input connections
- Perform annual firmware backup and event log archive for machinery performance trending records
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