Description
Product Overview
The Emerson A6110 (EPRO) is a 3U single-slot plug-in TSI protection module for AMS 6500 / CSI 6500 Machinery Health Monitor rack system. This dual-channel relative vibration monitor measures shaft radial vibration using eddy current proximity probes. It provides continuous machinery protection for steam turbines, gas turbines, centrifugal compressors and large critical rotating pumps in power generation, oil & gas and petrochemical facilities. Fully API 670 compliant, the module delivers configurable alert and trip relay outputs for machinery safety interlock.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | A6110 |
| Manufacturer | Emerson Automation Solutions (EPRO) |
| Series | AMS 6500 / CSI 6500 |
| Product Type | Dual Channel Shaft Relative Vibration Monitor |
| Channels | 2 independent galvanically isolated eddy current input channels |
| Supported Sensors | EPRO PR6422, PR6423, PR6424, PR6425 eddy current proximity probes |
| Measurement Parameter | Shaft radial vibration displacement (μm or mils, peak-peak) |
| Frequency Bandwidth | 1 Hz ~ 10 kHz |
| Probe Supply | -26.7 VDC, short-circuit protected |
| Input Voltage Range | 0 ~ -22 VDC |
| Accuracy | ±1% of full scale |
| Galvanic Isolation | Channel-to-backplane isolation |
| Power Supply | 24 VDC ±10%, max 6W |
| Form Factor | 3U Eurocard single slot, DIN41494 |
| Dimensions | 30(W) ×128.4(H) ×160(D) mm |
| Weight | ~320g |
| Analog Output | 0/4–20mA or 0–10V buffered proportional output, front and rear terminals |
| Front Panel | SMB buffered raw signal, LED health / alarm / trip indicators |
| Operating Temp | 0°C ~ +60°C |
| Storage Temp | -40°C ~ +85°C |
| Humidity | 5–95% non-condensing |
| Certifications | CE, UL, API 670 compliant |
| Hot Swap | Yes |
Key Features
- Dual independent eddy current input channels for shaft relative radial vibration monitoring, measuring peak-to-peak shaft displacement between rotor and bearing housing.
- Built-in continuous sensor diagnostics for probe open circuit, short circuit, cable degradation and module hardware faults.
- Configurable Alert and Danger trip thresholds with adjustable time delay and hysteresis to avoid nuisance trips during machine transients, startup and load changes.
- Buffered analog outputs (4–20mA / 0–10V) available at both front and rear connectors for transmitting real-time vibration readings to DCS/SCADA systems.
- Front-panel SMB test port for technicians to capture raw proximity probe signal using oscilloscopes without disrupting field wiring.
- Hot-swappable 3U Eurocard design, supporting online replacement under controlled maintenance procedures without full rack shutdown.
- Configuration, calibration and diagnostics managed via AMS 6500 configuration software with password protection to prevent unauthorized modification of protection setpoints.
Installation Notes
- Install only in Emerson AMS6500 19-inch rack, confirm firmware compatibility with existing rack processor.
- Pair with EPRO PR642x series eddy current proximity probes and matched extension cables for radial vibration measurement.
- Separate low-level proximity probe signal wiring from high-power AC cables to minimize EMI interference.
- Wear ESD wrist strap during handling to avoid static damage to PCB electronics.
- Follow plant lockout/tagout procedures even for hot-swap maintenance work.
- After module replacement, perform probe gap calibration, loop test and vibration protection proof test before returning rotating equipment online.
- Set alarm and trip parameters strictly following machine OEM protection specifications.
Testing Procedure
- Visual inspection: Inspect front panel LEDs, PCB and edge connector for scratches, bent pins or corrosion.
- Insert A6110 module into AMS6500 rack, apply 24VDC rack power and confirm power-up self-test passes.
- Connect eddy current probe simulator to both input channels.
- Simulate different shaft gap and vibration displacement values, verify readings inside AMS6500 software and analog output terminals.
- Simulate probe open/short faults to validate module diagnostic alarms trigger correctly.
- Test alert and danger trip relay functions, verify threshold hysteresis and time delay settings.
- Save configuration backup, record calibration data and tag module for spare inventory.
FAQ
Q: What is Emerson A6110 used for? A: It is dual-channel TSI monitor for measuring shaft relative radial vibration (peak-peak displacement) of turbines and centrifugal compressors for machinery protection.
Q: What sensors are compatible with A6110? A: EPRO PR6422, PR6423, PR6424, PR6425 eddy current proximity probe series.
Q: Is A6110 hot swappable? A: Yes, hot swap is supported on AMS6500 racks under approved site maintenance procedures.
Q: What is the difference between A6110 and A6120? A: A6110 measures shaft relative vibration using eddy current probes; A6120 measures bearing housing absolute seismic velocity with electro-dynamic sensors.
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