Measures relative shaft motion without mechanical contact when used with its matched signal converter.
Key Information
PR6423/011-040 is an Emerson 8 mm eddy-current sensor for non-contact measurement of shaft vibration and position in rotating machinery protection systems.
The ordering code identifies an M10 × 1 threaded, armored sensor with a 35 mm case, adapter plug, 10.0 m total cable and LEMO cable end. The complete code is required because mechanical and cable options change within the PR6423 family.
Functions
Supports radial vibration, axial position and phase-reference applications according to the configured monitoring channel.
Uses an armored cable construction for added mechanical protection along the installed sensor lead.
Maintains a calibrated sensor-system relationship with the approved converter, extension arrangement and target material.
Specifications
| Manufacturer | Emerson |
|---|---|
| Sensor family | PR6423, 8 mm eddy current |
| Ordering configuration | M10 × 1 thread; armored; 35 mm case |
| Cable configuration | 10.0 m total cable; LEMO end; adapter plug included |
| Linear measurement range | 2.0 mm (80 mil) |
| Initial air gap | 0.5 mm |
| Incremental scale factor | 8 V/mm ±5% from 0 to 45 °C |
| Deviation from straight line | ±0.025 mm |
| Reference target material | 42CrMo4 / AISI 4140 steel |
| Minimum shaft diameter | 25 mm |
| Environmental protection | IP66 |
| Sensor temperature range | -35 to +180 °C with 1 m sensor cable |
| Cable and connector range | -35 to +150 °C |
| Minimum bend radius | 35 mm for armored cable |
| Sensor-head pressure capability | 10,000 hPa |
Installation
- Confirm the M10 × 1 mounting thread, case length, cable route and available bend radius before installation.
- Set the initial air gap using the matched converter output and the machine protection procedure; do not set position by visual estimate.
- Keep the 10 m lead away from high-energy switching conductors and protect the LEMO connection from strain and contamination.
- Verify converter compatibility and loop calibration before enabling alarm or shutdown voting.
Lifecycle
- Store PR6423/011-040 with the sensor tip protected and the cable coiled above its minimum bend radius.
- Do not mix a replacement sensor with an unmatched converter merely because the connector fits.
- Retain gap-voltage, runout and calibration records as the baseline for future maintenance.
About IndustryParts
https://www.industryparts.com/The complete sensor code stays with the calibration path
IndustryParts prepares PR6423/011-040 enquiries around the exact mechanical, cable and termination code rather than the PR6423 family name alone.
- Mechanical code checked
- Cable option retained
- Converter path reviewed
FAQ
Which converter should be ordered with PR6423/011-040?
Select only an Emerson converter documented for the PR6423 family and the installed monitoring system; confirm the complete sensor-system calibration path before ordering.
Can PR6423/011-040 replace a non-armored PR6423 sensor?
Mechanical envelope, cable routing and calibration must be reviewed. Armor changes the cable construction and bend requirement, so the ordering codes are not interchangeable by family name alone.
What site measurements are needed before installing PR6423/011-040?
Record mounting thread engagement, target diameter and material, available 35 mm cable bend radius, required gap and the full signal path to the monitor.
How should a received PR6423/011-040 be accepted?
Check the exact code, tip condition, armor, 10 m lead, LEMO end and continuity according to the maintenance procedure before fitting it to the machine.
What commissioning record is most useful for PR6423/011-040?
Keep the final gap voltage, slow-roll runout, channel scale, alarm settings and sensor/converter serial identities together.
