Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | MMS 3110/010-000 |
| Manufacturer | EPRO GmbH |
| Product Family | MMS 3000 |
| Product Type | Dual-Channel Shaft Vibration Transmitter |
| Measurement Principle | Eddy-current shaft-vibration measurement |
| Input Channels | 2 identical channels |
| Signal Converter | Internal |
| Communication | RS-232 |
| Bus Communication | None |
| Current Outputs | 2 × 0/4–20 mA |
| Output Configuration | Common ground |
| Function Outputs | None |
| Display | None |
| Supply Voltage | 18–31.2 VDC operating range |
| Mounting | MMS 3000 transmitter installation |
| Associated Sensors | EPRO PR 6423 series and compatible eddy-current systems |
The MMS 3110 family permits either internal or external signal conversion and several communication/output configurations. The /010-000 version specifically uses internal converters, RS-232, two current outputs, no bus communication, no function outputs, and no display.
Product Introduction
The EPRO MMS3110/010-000 is a dual-channel shaft-vibration transmitter within the MMS 3000 machine-monitoring platform. It accepts signals from compatible eddy-current measurement systems and provides conditioned vibration information through two 0/4–20 mA outputs, with RS-232 available for configuration or communication.
Its main practical value is maintaining an existing MMS 3000 installation without replacing the complete monitoring architecture. The catch is sensor compatibility. EPRO documentation identifies direct PR 6423 connections with MMS 3110 transmitters, so the installed probe, converter arrangement, scaling, and wiring should all be checked before a replacement is commissioned.
MMS3110010-000
Application Scenarios & Field Pitfalls
Engineering Pain Point
A shaft-vibration transmitter can look like a simple signal-conditioning device until a turbine starts producing implausible vibration readings after replacement. With legacy MMS 3000 systems, the problem is often configuration rather than the replacement hardware itself. The MMS 3110 has multiple ordering options for sensor conversion, communications, outputs, function relays, and display. The /010-000 configuration is deliberately basic: internal conversion, RS-232, current outputs, no function outputs, and no display.
Typical Applications
- Steam Turbines — Shaft-relative vibration monitoring using eddy-current proximity probes.
- Gas Turbines — Rotating-shaft vibration measurement within legacy machinery-monitoring systems.
- Turbo Compressors — Continuous shaft-vibration signal transmission to plant monitoring and control systems.
- Industrial Rotating Equipment — Condition-monitoring applications using compatible EPRO eddy-current sensors.
Technical Pitfalls to Avoid
- Match the complete option code.
Do not substitute a generic MMS 3110 for MMS3110/010-000 without checking the option structure. Other versions can use RS-485 or PROFIBUS DP, external converters, function outputs, or a display. - Verify the probe and signal chain.
EPRO documentation shows direct connection of PR 6423 sensors to MMS 3110 transmitters. Confirm the exact probe variant, cable arrangement, initial gap, and measurement range before commissioning. - Check the 0/4–20 mA receiving device.
The /010-000 version uses current outputs with common ground. Confirm whether the DCS, PLC, recorder, or protection system expects 0–20 mA or 4–20 mA and verify grounding before energizing the loop. - Do not assume PROFIBUS capability.
The /010-000 configuration has no bus communication. A different MMS 3110 option may provide PROFIBUS DP, but that does not make it an automatic substitute.
Related Products
- EPRO MMS 3110/011-000 — Closely related MMS 3110 configuration using internal signal converters and RS-232, but adds function outputs. It is the relevant comparison when the installed system needs alarm/function contacts.
- EPRO MMS 3110 — The broader dual-channel shaft-vibration transmitter family. Different option codes alter communications, output functions, conversion, and display configuration, so the base family number is not sufficient for procurement.
- EPRO MMS 3210/011-000 — Related MMS 3000 transmitter for a different monitoring function. Useful when identifying the installed MMS architecture, but it should not be treated as a direct MMS 3110 substitute.
- EPRO MMS 3311/011-000 — Another MMS 3000 transmitter family used for machinery monitoring. Its measurement function differs from the dual-channel MMS 3110 shaft-vibration configuration.
- EPRO PR 6423/000-000 — Eddy-current proximity sensor compatible with direct connection to MMS 3110 transmitters. It is part of the measurement chain rather than a replacement for the transmitter itself.
- EPRO PR 6423/100-000 — Another PR 6423 sensor configuration documented for connection to MMS 3110, MMS 3210, and MMS 3311 transmitters. Select based on the installed mechanical and electrical configuration.
- EPRO PR 6423/010-000 — PR 6423 proximity-sensor variant associated with the MMS 3000 transmitter family. Verify probe range and mechanical installation before substitution.
- EPRO MMS 3910 W — Configuration kit for MMS 3000 transmitters. It is a commissioning/configuration accessory rather than a measurement module. The MMS documentation lists it with order number 9510-00023.
- EPRO CON 031 / CON 041 — Signal-converter hardware used with EPRO eddy-current measurement systems. These become relevant when comparing internally converted MMS 3110 configurations with architectures using external conversion.
