MPC4 200-510-076-114 | Machinery Protection Card (4 channels)

Parameter Name	Parameter Value
Product Model	Vibro-Meter MPC4 200-510-076-114
Manufacturer	Meggitt Vibro-Meter
Product Type	Machinery Protection Card (4 channels)
Signal Inputs	4 configurable channels (Proximity, IEPE, Tacho)
Frequency Range	DC to 15 kHz (Proximity), 0.5 Hz to 20 kHz (IEPE)
Dynamic Range	120 dB (24-bit ADC)
Measurement Modes	Radial vibration, axial position, casing vibration, speed
Accuracy	±0.5% reading or ±1 μm (proximity), ±1% (IEPE)
Protective Functions	2 settable alarms + danger trip per channel
Response Time	<15 ms for trip relays
Keyphasor Input	1 (optically isolated)
Communication	VM-Bus to CPU module
Power Requirement	+5VDC ±5% @ 1.2A max (via backplane)
Operating Temperature	–40°C to +85°C
Vibration Tolerance	10g @ 10–2000 Hz
Electrical Isolation	1500 Vrms channel-to-channel
Certifications	SIL 2, ATEX II 3G Ex ic IIC T4 Gc, IECEx

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Description

Product Overview

The Vibro-Meter MPC4 200-510-076-114 is a high-reliability 4-channel monitoring and protection module engineered for critical turbomachinery applications within Meggitt’s VM 600 platform. Designed to API 670 and ISO 10816 standards, this ruggedized card processes both dynamic vibration (acceleration/velocity/displacement) and position signals from proximity probes or accelerometers. The Vibro-Meter MPC4 200-510-076-114 combines real-time protection with predictive diagnostics, executing overspeed detection, vectorial vibration alarming, and phase analysis with <0.5° accuracy at 1× RPM. Its dual-path processing architecture separates safety-critical trip functions (≤15ms response) from condition monitoring analytics, enabling SIL 2 certification per IEC 61508. The module supports both radial vibration measurements via XY proximity probes and casing vibration via IEPE sensors, with automatic sensor validation eliminating false trips. For offshore and power generation environments, the Vibro-Meter MPC4 200-510-076-114 delivers Class I Div 2/ATEX Zone 2 compliance while its corrosion-resistant coating withstands salt spray per ASTM B117.

Technical Specifications

Parameter Name	Parameter Value
Product Model	Vibro-Meter MPC4 200-510-076-114
Manufacturer	Meggitt Vibro-Meter
Product Type	Machinery Protection Card (4 channels)
Signal Inputs	4 configurable channels (Proximity, IEPE, Tacho)
Frequency Range	DC to 15 kHz (Proximity), 0.5 Hz to 20 kHz (IEPE)
Dynamic Range	120 dB (24-bit ADC)
Measurement Modes	Radial vibration, axial position, casing vibration, speed
Accuracy	±0.5% reading or ±1 μm (proximity), ±1% (IEPE)
Protective Functions	2 settable alarms + danger trip per channel
Response Time	<15 ms for trip relays
Keyphasor Input	1 (optically isolated)
Communication	VM-Bus to CPU module
Power Requirement	+5VDC ±5% @ 1.2A max (via backplane)
Operating Temperature	–40°C to +85°C
Vibration Tolerance	10g @ 10–2000 Hz
Electrical Isolation	1500 Vrms channel-to-channel
Certifications	SIL 2, ATEX II 3G Ex ic IIC T4 Gc, IECEx

Major Functional Advantages

Multi-Parameter Measurement Capability:
Each channel autonomously processes multiple parameters: proximity inputs measure shaft relative vibration (peak-peak), position (DC gap), and derived velocity simultaneously. IEPE channels calculate acceleration, velocity (RMS), and kurtosis for early bearing defect detection without external processing.

VM600-MPC4

Intelligent Diagnostic Algorithms:
Patented waveform defect identification detects rubs, unbalance, and looseness through real-time orbit plotting. Gap-Vector™ diagnostics track slow changes in shaft alignment. Dynamic current monitoring identifies deteriorating sensor cables before failure.

Redundancy Management:
When installed in redundant configuration (MPC4-R variant), automatic voting logic compares measurements across multiple cards, inhibiting spurious trips. Self-diagnostics continuously validate ADC calibration and signal paths, meeting nuclear industry standards.

Application Domains

The Vibro-Meter MPC4 200-510-076-114 excels in safety-critical rotating equipment installations. In nuclear power plants, its SIL 2 compliance and EMI immunity (>40 V/m) safeguard reactor coolant pumps, monitoring shaft vibration and thrust position simultaneously. LNG liquefaction trains utilize its hydrocarbon compatibility for cryogenic compressor protection, with ATEX certification for Zone 2 compressor buildings.

Aeroderivative gas turbines leverage the module’s <1µs keyphasor alignment for blade timing analysis during transient operation. Hydroelectric units deploy it for wicket gate position monitoring in humid environments. Offshore drill rigs implement Vibro-Meter MPC4 200-510-076-114 for top-drive vibration management, surviving 15g drilling shock events. Rolling mill drive trains benefit from its 15kHz bandwidth to detect gear-mesh harmonics in multi-stage reducers.