Epro CON020/T4+PR6424/01 16mm Eddy Current Sensor

The Epro CON020/T4 + PR6424/01 16 mm Eddy Current Sensor is a factory-matched, non-contact displacement and vibration measurement system designed for critical rotating machinery. The package combines a PR6424/01 proximity probe (16 mm sensing tip) with the CON020/T4 signal converter, providing a conditioned 4–20 mA (or optional 0–20 V DC) output proportional to shaft position or dynamic vibration.

Developed for turbines, compressors, and other high-value assets, the system delivers stable linear performance across a wide temperature span, resists electromagnetic interference, and thrives in oily, contaminated environments typical of power-generation and petrochemical plants.

Product Specifications

Product Applications

• Gas & Steam Turbines

  Continuous monitoring of shaft vibration, eccentricity, and thermal growth.

• Centrifugal & Reciprocating Compressors

  Detects early-stage bearing wear, rotor rub, and imbalance.

• Industrial Pumps & Fans

  Protects against cavitation-induced shaft movement and dynamic loading.

• Generator Sets

  Provides displacement feedback for load-dependent alignment control.

• Refinery and Chemical Reactors

  Operates reliably in corrosive, high-temperature, and hazardous zones.

• Predictive Maintenance Systems

  Feeds real-time displacement data into DCS, SCADA, or dedicated CMS platforms.

Product Advantages

• True Plug-and-Play Calibration

  Probe and converter are paired and documented at the factory—no field trimming needed.

• Wide Output Choice

  4–20 mA loop for PLC/DCS integration or high-bandwidth voltage for dynamic analysis.

• High-Temperature Capability

  Probe materials and cable insulation tolerate up to 180 °C without performance drift.

• Exceptional EMC Immunity

  Robust shielding and differential circuitry maintain accuracy in high-noise cabinets.

• Rugged Construction

  Hermetically sealed stainless-steel probe withstands oil splash, steam ingress, and vibration.

• Low Lifecycle Cost

  Non-contact sensing eliminates mechanical wear; zero routine maintenance required.

• Flexible Mounting Hardware

  Standard and custom adapters support retrofits on legacy monitoring systems.

• Global Compliance

  CE-marked, EN 61000 certified, with optional ATEX/IECEx variants for Zone 1 installations.

FAQ

1. What is the default output of the CON020/T4 converter?

   A calibrated 4–20 mA signal proportional to shaft displacement; voltage mode can be enabled via jumper.

2. Can I interchange this probe with a different CON020 variant?

   No—the PR6424/01 is calibrated exclusively with its shipped CON020/T4. Mixing pairs invalidates accuracy.

3. How does cable length affect sensitivity?

   Length is included in the factory calibration; replacing or shortening the cable changes the transfer function.

4. What is the maximum allowable vibration amplitude before clipping?

   The linear range extends to ±2 mm; excursions beyond will saturate the converter output.

5. Does the system support dynamic vibration (AC) and static position (DC) simultaneously?

   Yes—the converter superimposes the dynamic AC component on the DC bias for holistic monitoring.

6. Is reverse-polarity protection built in?

   Yes, the converter incorporates diode protection to prevent damage from wiring errors.

7. Can the sensor be installed in an ATEX Zone 1 gas atmosphere?

   An Ex ia certified version is available when ordered with the proper option code.

8. What is the maximum loop impedance for 4–20 mA operation?

   Up to 600 Ω at 24 V DC supply; derate linearly with lower supply voltages.

9. How is temperature drift compensated?

   The CON020/T4 uses precision thermocompensation networks to keep drift below ±0.25 % FS/100 °C.

10. Can I split the 4–20 mA signal to two receivers?

    Yes, provided the total loop resistance (both receivers plus wiring) stays within the specified limit.