Measures large-shaft movement without mechanical contact.
Technical Summary
PR6426/000-130 is an Emerson 32 mm eddy-current sensor for non-contact position, eccentricity and radial or axial shaft motion measurement on critical turbomachinery. Its larger sensing geometry is intended for a minimum shaft diameter of 200 mm.
The /000-130 order code selects no sleeve thread, no cable armor, an 80 × 40 mm mounting plate, no adapter plug, 8 m total cable length and a LEMO connection to the signal converter.
Specifications
| Manufacturer | Emerson |
|---|---|
| Exact Model | PR6426/000-130 |
| Product Type | 32 mm eddy current sensor |
| Measurement Uses | Radial and axial displacement, position, eccentricity and motion |
| Sensitivity | 2 V/mm (50.8 mV/mil) |
| Sensitivity / Linearity Tolerance | ≤ ±1.5% |
| Approximate Center Gap | 5.5 mm |
| Static Measurement Range | ±4.0 mm |
| Long-Term Drift | < 0.3% |
| Reference Target | Ferromagnetic steel 42CrMo4 |
| Minimum Shaft Diameter | 200 mm |
| Maximum Surface Speed | 2500 m/s |
| Operating Temperature | -35 to 175 °C |
| Short Excursion | Up to 200 °C for less than 4 hours |
| Maximum Cable Temperature | 200 °C |
| Sensor Head Pressure Resistance | 6500 hPa |
| Sleeve Thread Code 0 | No thread |
| Cable Armor Code 0 | Without armor |
| Length Code 0 | 80 × 40 mm mounting plate |
| Adapter Code 1 | Without adapter plug |
| Cable Length Code 3 | 8 m total cable length |
| Cable End Code 0 | LEMO connector |
| Construction | Stainless-steel sleeve and PTFE cable |
Features
Provides the documented 2 V/mm system sensitivity with a compatible converter and correct target.
Uses a mounting plate rather than a threaded sleeve, which makes the exact mechanical execution visible.
Supports high-temperature machinery locations within the published continuous and short-excursion limits.
Compatibility
- Confirm the 80 × 40 mm mounting plate, available probe clearance and 200 mm minimum shaft diameter.
- Match PR6426/000-130 to the signal converter specified for the installed 32 mm measurement chain.
- Preserve the 8 m electrical length and LEMO termination; this execution has no adapter plug.
- Verify target material, surface condition, cable temperature and route before setting the operating gap.
Replacement
- Archive gap voltage, scale, alarms, converter identity and a drawing of the mounting plate position.
- Inspect the target surface, probe face, plate fasteners and cable for rub damage or thermal distress.
- Mount the plate squarely and route the unarmored cable without strain at the probe or LEMO connector.
- Set the working gap from live converter output under the Emerson installation procedure.
- Confirm standstill gap, slow-roll runout, trend direction and protection response during controlled startup.
FAQ
Can a threaded PR6426 replace PR6426/000-130?
Not without redesign. PR6426/000-130 uses the 80 × 40 mm mounting-plate execution, so the mechanics and probe position differ from threaded variants.
Why is the 200 mm shaft-diameter limit important for PR6426/000-130?
The published performance is referenced to the sensor geometry and target size; a smaller curved target can change sensitivity and linearity.
What does the 130 cable code mean on PR6426/000-130?
It specifies no adapter plug, 8 m total cable length and a LEMO converter connection.
What should be checked after a high-temperature event involving PR6426/000-130?
Inspect the probe face, cable jacket, connector and gap stability, and compare converter output with the pre-event baseline before trusting the channel.
How should a replacement PR6426/000-130 be proven on the machine?
Set gap at standstill, compare slow-roll runout and then confirm scale, polarity, alarms and stable trend response through a controlled run-up.
About IndustryParts
https://www.industryparts.com/Large-tip probe geometry is verified before supply
IndustryParts controls PR6426/000-130 by its 32 mm sensing system, mounting plate, 8 m cable and LEMO termination.
- Ordering code preserved
- Mounting plate reviewed
- Cable end verified
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