EPRO MMG 1070/04TS Eddy Current Displacement Sensor

Product Details

MMG 1070/04TS Product Description

The EPRO MMG 1070/04TS is a precision eddy current displacement sensor engineered for seamless integration into modern industrial control architectures. Designed to operate within EPRO's modular proximity measurement ecosystem, this sensor delivers high-resolution, non-contact displacement measurement critical to rotating machinery protection, shaft position monitoring, and vibration analysis across multi-layer automation platforms. Its system-matched design ensures signal integrity from the sensing element through the proximitor driver, into the monitoring rack, and up to the supervisory control layer — making it a foundational component in any coherent control architecture.

Unlike standalone sensing devices, the MMG 1070/04TS is conceived as a contextual integration component. Its electrical characteristics are factory-calibrated to pair directly with EPRO PR6423 proximitor drivers and CON021 extension cables, ensuring that the full signal chain — from probe tip to rack input — maintains consistent sensitivity, linearity, and temperature stability. This contextual integration eliminates field calibration uncertainty and reduces commissioning time in complex multi-axis monitoring installations.

The MMG 1070/04TS achieves its full performance potential when deployed as part of a coherent, layered automation platform. At the sensing layer, the probe pairs with the EPRO PR6423 proximitor driver, which conditions the raw eddy current signal into a calibrated DC voltage output. This signal is then routed via EPRO CON021 extension cables — available in matched lengths to preserve system sensitivity — into the I/O input modules of the EPRO 3500 Series machinery protection rack or the more compact EPRO 3300 Series monitoring system.

Within the 3500 rack architecture, the displacement signal is processed by dedicated monitor cards such as the 3500/42M Position Monitor or the 3500/40M Proximitor/Seismic Monitor, which apply configurable alert and danger thresholds, gap voltage verification, and OK relay outputs. These monitor outputs feed directly into the plant's DCS (Distributed Control System) or PLC safety layer via hardwired relay contacts or optional 3500/92 Communication Gateway modules supporting Modbus RTU, Modbus TCP/IP, or PROFIBUS DP protocols.

At the power layer, the 3500 rack is supplied by redundant 3500/15 Power Supply modules, ensuring uninterrupted monitoring even during single-supply failures — a critical requirement in continuous process industries. The rack's 3500/20 Rack Interface Module (RIM) manages system-level communication, configuration, and diagnostics, interfacing with System 1 Evolution asset management software for real-time trending, alarm management, and predictive maintenance workflows.

For installations requiring distributed I/O expansion, the MMG 1070/04TS signal chain can be integrated alongside EPRO PR9268 velocity transducers and PR9376 accelerometers within the same rack chassis, enabling a unified vibration and position monitoring solution across multiple machine trains. This modular co-deployment reduces panel footprint, simplifies wiring, and consolidates diagnostic data into a single engineering workstation view — directly supporting Industry 4.0 asset health monitoring objectives.

Power Generation: In steam turbine and gas turbine installations, the MMG 1070/04TS monitors rotor axial position and radial shaft displacement in real time. Paired with the 3500/42M Position Monitor, it provides continuous gap voltage verification and trip relay outputs that protect turbine bearings from catastrophic contact during load transients or startup sequences.

Petrochemical & Oil and Gas: Centrifugal compressors and high-speed pumps in refinery and upstream processing environments demand non-contact displacement monitoring with explosion-proof or intrinsically safe installation options. The MMG 1070/04TS, combined with appropriate barrier modules, integrates into SIL-rated safety instrumented systems (SIS) to satisfy API 670 machinery protection requirements.

Water Treatment & Utilities: Large vertical pump installations and blower trains in municipal water treatment facilities benefit from the sensor's IP67 ingress protection and wide operating temperature range. Continuous shaft position data feeds into SCADA systems via the 3500/92 gateway, enabling remote condition monitoring without on-site intervention.

Mining & Minerals Processing: Ball mills, SAG mills, and crusher drives operate in high-vibration, high-contamination environments where contact-based measurement is impractical. The MMG 1070/04TS's robust eddy current principle and sealed probe body maintain measurement accuracy in the presence of dust, moisture, and process fluids.

Marine Propulsion: Shipboard propulsion systems and auxiliary machinery require compact, vibration-resistant displacement sensors that can operate reliably in confined machinery spaces. The MMG 1070/04TS's small tip diameter and threaded mounting body facilitate installation in tight bearing housings on main propulsion shafts and thruster drives.

Packaging & Discrete Manufacturing: High-speed rotary machinery on packaging lines — including fillers, cappers, and labelers — uses displacement sensing for real-time runout detection and bearing wear trending, enabling condition-based maintenance scheduling that minimizes unplanned downtime.

Q1: Is the MMG 1070/04TS compatible with both the EPRO 3500 and 3300 Series monitoring racks? Yes. The MMG 1070/04TS is designed for use with EPRO PR6423-series proximitor drivers, whose DC voltage output is compatible with the input specifications of both the 3500 Series and 3300 Series rack input modules. Verify the specific monitor card's gap voltage input range against the sensor's nominal operating point (typically –10 VDC at mid-range) before finalizing the installation design. The 3500/42M and 3300/16 Position Monitor cards are the most commonly paired modules for axial and radial displacement applications.

Q2: What extension cable length is supported, and how does cable length affect system sensitivity? The MMG 1070/04TS system sensitivity is calibrated for a specific total cable length — probe integral cable plus CON021 extension cable — as specified in the EPRO system documentation. Deviating from the specified total length alters the resonant frequency of the driver-cable-probe circuit, shifting the sensitivity curve and introducing linearity errors. Always use EPRO-matched CON021 extension cables in the lengths specified for the MMG 1070 series, and verify system sensitivity with a calibration standard after installation. NANKMOS supplies matched cable assemblies alongside the sensor to ensure system-level accuracy from day one.

Q3: What does the 12-Month Warranty cover, and what is the lead time for in-stock units? All MMG 1070/04TS units supplied by NANKMOS carry a 12-Month Warranty covering manufacturing defects, electrical performance within published specifications, and mechanical integrity of the probe body and connector. Each unit undergoes pre-shipment functional testing — including gap voltage verification and insulation resistance checks — before dispatch. In-stock units are available for immediate shipment with standard lead times of 3–7 business days for international destinations. For urgent requirements or bulk procurement, contact NANKMOS directly to confirm availability and expedited shipping options.