Description
- EPRO PR6423000-031-CN+CON021 | Genuine Eddy Current Displacement Monitoring Kit
Product Core Brief
- Model: PR6423000-031-CN + CON021
- Brand: EPRO (formerly Philips, now part of Vibro-Meter)
- Series: PR6423 Eddy Current Probe Series
- Core Function: Eddy current sensor assembly for shaft vibration and axial displacement measurement
- Type: Probe + Proximitor Converter Complete Set
- Key Specs: 8 mm probe diameter | Standard cable length | 0~2 mm linear measuring range
- Condition: New Surplus, non-refurbished
⚠️ Original series gradually phased out, stock quantity limited
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Probe Model | PR6423000-031-CN |
| Converter Model | CON021 |
| Probe Diameter | 8 mm |
| Linear Measuring Range | 0 ~ 2 mm |
| Output Signal | -2 ~ -18 V DC |
| Supply Voltage for CON021 | 24 V DC (±10%) |
| Operating Temperature (Probe) | -40 °C ~ +120 °C |
| Operating Temperature (CON021) | -20 °C ~ +70 °C |
| Cable Type | Integrated high-frequency coaxial cable |
| Mounting Thread | M10×1 |
| Application Target | Shaft radial vibration, thrust displacement monitoring |
| Feature | High anti-interference performance, stable for long-term continuous operation |
| Certification | CE certified, widely accepted for power plant TSI systems |
EPRO PR6423000-031-CN+CON021
Product Introduction
Application Scenarios & Pain Points
- Thermal Power Plants – Steam Turbine TSI Monitoring
Measure shaft radial vibration and thrust bearing displacement of main turbine units to avoid rotor rubbing accidents.
- Combined Cycle Power Plants – Gas Turbine Auxiliary Monitoring
Continuous shaft vibration tracking for gas turbines and supporting generators.
- Petrochemical Industry – Centrifugal Compressor Units
Monitor rotor vibration of process compressors on hydrocarbon production lines.
- Metallurgical Industry – Large Blowers and Fans
Vibration protection for high-speed rotating blowers under high dust environment.
- Waste-to-Energy Plants – Turbo Generators
Long-term stable displacement monitoring for medium and small steam turbine generators.
A 200MW thermal power plant discovered abnormal vibration signal drift during daily inspection. Troubleshooting confirmed aging of the original PR6423000-031-CN probe. The official delivery cycle reached 56 working days. If waiting for factory supply, the unit needed to operate under reduced load with strict manual observation.
The maintenance team purchased the complete PR6423000-031-CN+CON021 assembly from our stock. Field technicians finished installation, gap calibration and signal verification within 1.5 hours. Vibration data recovered stable readings. Later the plant prepared two full sets as backup spare parts.
Compatibility & Replacement Matrix
PR6423000-031-CN + CON021 → PR6424 series probe : Incompatible, different probe impedance, cannot use original CON021 converter
PR6423000-031-CN + CON021 → CON041 converter : Not interchangeable, internal circuit parameters mismatch
Notice: Probe and converter must be used as matched set. Random mixing of unmatched probe and converter will cause distorted measurement data.
Quality Control Process
- Incoming Inspection
Check original packaging and serial number consistency between probe and converter. Complete visual inspection: no cable cracking, probe tip deformation, corrosion or disassembly traces.
- Live Bench Test
Test platform: Standard signal simulator and EPRO MMS monitoring rack
- 24V DC power supply test for CON021
- Full linear range gap simulation test
- Output voltage curve recording
- Continuous 24-hour stability test
A formal test report will be generated. Test photos and videos can be provided on request.
- Electrical Performance Test
Cable continuity test, insulation resistance test ≥10 MΩ at 500V DC. Check no internal short circuit.
- Parameter Recording
Record serial numbers of probe and converter, mark matched group information.
- Final QC & Packaging
Attach QC Pass label. Probe protected by plastic cap. All items sealed with anti-static bag, packed with shockproof bubble film and export carton.
Technical Pitfall Guide for On-site Replacement
Problem: Using unmatched probe and converter leads to non-linear signal and wrong vibration readings.
Tip: Always replace probe and converter as one matched assembly. Do not mix spare probes and converters stored separately.
Real case: One power station reused an old CON021 with a new unmatched probe. Vibration alarm triggered falsely for three consecutive days before engineers found the mismatch issue.
Problem: Improper probe installation distance exceeds linear range, resulting in invalid signal.
Tip: Adjust static gap to the middle point of linear range, measure output voltage for confirmation after fixing the probe lock nut.
Problem: Excessive bending or squeezing damages internal coaxial wire, causing signal fluctuation.
Tip: Follow minimum bending radius requirement; avoid trampling and sharp edge friction on sensor cable.
Problem: Static discharge damages the internal circuit inside CON021 proximitor.
Tip: Wear anti-static wristband when handling the converter module.
Problem: Sensor cable laid parallel with high-voltage power cable introduces electromagnetic interference.
Tip: Separate sensor wiring from power cables, use metal conduit for shielding.
Start Chat
