Product Short Description
Product Series
EPRO MMS3200 Eddy Current Displacement Sensor Cable Accessory Line
Product Brief
Factory-calibrated matched extension cable for MMS3200 series eddy current proximity displacement probes, engineered with precise fixed capacitance matching to maintain linear measurement performance of eddy current transducer systems over extended installation distances.
Description
Technical Specifications
- Nominal Cable Length: 20 meters fixed factory pre-terminated length
- Capacitance Matching: Pre-calibrated total capacitance matched to MMS3200 series probe head
- Conductor Construction: 2 x shielded twisted signal conductors, 1 drain ground wire
- Dielectric Insulation: Low-loss polyethylene capacitance-stabilized insulation
- Outer Sheath: Black PVC oil-resistant industrial outer jacket
- Shield Coverage: 95 % copper braid electromagnetic shielding
- Connector Terminations: M16 male probe end, M16 female monitor rack module end
- Operating Temperature Range: -20 °C to +70 °C
Functional Features
- Factory pre-calibrated capacitance eliminates on-site cable matching adjustment
- Full braided shielding blocks electromagnetic noise interference on eddy current microvolt signals
- Molded IP67 sealed connectors at both cable ends for machinery mounting environments
- Reinforced strain relief to withstand continuous vibration and cable flex cycling
- Drain wire single-point grounding design to prevent ground loop induced measurement offset
Structural Characteristics
- Core layout: Balanced twisted pair internal conductors to minimize crosstalk
- Shield layer: Continuous tinned copper braid wrapped over insulated core bundle
- Connector housing: Machined brass nickel-plated M16 circular industrial connectors
- Cable jacket: Extruded flexible PVC sheath resistant to mineral oil and coolants
Working Principle
Transmits low-amplitude high-frequency AC excitation signals and target displacement echo signals between eddy current probe head and MMS series rack monitor module; precisely controlled total cable capacitance preserves the linear eddy current measurement characteristic curve required for accurate shaft gap reading.
Advantage Highlights
- Pre-calibrated fixed capacitance maintains full measurement linearity without field compensation
- 20 m standard length covers most large turbine and compressor machinery installation layouts
- Nickel-plated brass connectors resist oxidation under humid industrial cabinet conditions
- Balanced twisted pair construction suppresses external electrical noise contamination of microvolt signals
- Pre-molded termination eliminates wiring errors associated with field-assembled cable sets
Applicable Industries
Power generation turbine shaft displacement monitoring, petrochemical centrifugal compressor bearing gap measurement, heavy industrial steam pump shaft vibration surveillance
Installation Requirements
- Route cable separately from three-phase power cables with minimum 25 cm clearance
- Ground cable drain wire exclusively at rack monitor module end only
- Maintain minimum cable bend radius of 10 x outer cable diameter during installation routing
- Secure cable routing with non-metallic plastic clamps to avoid sheath abrasion
Operation Precautions
- Do not cut, splice or extend cable assembly; capacitance mismatch will invalidate probe linearity
- Avoid direct contact with hot machinery surfaces exceeding +70 °C ambient limit
- Inspect connector sealing gaskets annually for degradation in washdown environments
- Replace cable immediately if outer jacket shows cuts, tears or chemical swelling damage
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