Product Core Brief
- Model: PR6423/000-030 + CON021
- Brand: EPRO (Emerson)
- Series: PR6423 / MMS 6000
- Core Function: High-precision, non-contact measurement of radial shaft vibration and axial shaft position.
- Type: Eddy Current Sensor and Signal Converter (Driver) Set
- Key Specs: 8 mm tip diameter, 2.0 mm measuring range, 3.0 m system length.
- Condition: New Original (New Surplus), not refurbished
Product Introduction
The PR6423/000-030+CON021 EPRO acts as the sensory “eyes” for your machinery protection system. By establishing a high-frequency electromagnetic field at the probe tip, it detects minute changes in the air gap between the sensor and the rotating shaft. The CON021 driver linearizes this physical displacement into a standardized voltage signal, providing the raw data needed for the MMS 6000 rack to trigger alarms or emergency trips.
In my field experience, the 3.0-meter configuration is often chosen for machines where the driver can be mounted in a junction box relatively close to the bearing housing. This integrated PR6423/000-030+CON021 EPRO set is factory-calibrated; the driver’s internal circuitry is tuned to the specific impedance and capacitance of the 3-meter pigtail, ensuring the measurement remains accurate despite thermal changes in the environment.
Key Selling Points & Differentiators
- Matched Calibration Chain: Eliminates the need for complex field scaling; the probe and driver are verified together to provide a linear slope of 8 V/mm.
- Hermetically Sealed Tip: The PR6423 probe is built to survive submerged in hot lubricating oil, making it suitable for internal bearing pedestal mounting.
- Non-Contact Reliability: No mechanical wear allows for continuous 24/7 monitoring of axial “float” and radial vibration for years without recalibration.
- Not Recommended For: Installations where the probe cable must be longer than 3.0 meters; adding an extension cable to this specific kit will cause significant scaling errors.
- Standard Compliance: Fully compliant with API 670 for Machinery Protection Systems.
