Product Core Brief
- Model: PR6426/010-110 + CON021/916-240
- Brand: EMERSON / EPRO (EPRO GmbH, acquired by Emerson in 2009)
- Series: PR6426 Large-Range Eddy Current Sensor + CON021/916 Converter
- Core Function: Non-contact measurement of large axial displacement, casing expansion, differential expansion, valve position, and low-frequency shaft movement.
- Product Type: Eddy Current Displacement Probe + Converter Kit
- Key Specs: 8 mm probe | flange mount | ±4 mm range (typical PR6426 configuration) | 2 V/mm sensitivity | 10 m armored cable | CON021/916-240 IP20 LEMO converter | API 670 compatible
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction (Rotation Engine)
The EMERSON EPRO PR6426/010-110 + CON021/916-240 is a complete large-range eddy current sensor and converter kit designed for turbomachinery applications that require extended displacement measurement, such as steam turbine differential expansion, casing expansion, axial rotor position, valve stroke monitoring, and large-gap position detection.
The PR6426/010-110 probe belongs to the EPRO PR6426 family, which is distinguished from PR6423/PR6424 by its larger linear measurement range and flange-mount mechanical configuration. The /010 prefix identifies the thread/flange and cable armor configuration, while -110 defines the cable length and connector option. PR6426 sensors are typically factory-calibrated against 42CrMo4 steel (equivalent to AISI/SAE 4140) and are paired with EPRO CON-series converters to form a complete measurement loop.
The CON021/916-240 is an IP20 panel-mount converter with a LEMO plug sensor interface, compatible with PR6422 through PR6426 sensors. The /916 sub-series indicates an extended-range converter variant; some /91x variants are designed for specific sensor ranges or extended measurement applications, and PR6425/PR6426-class probes often require extended-range converters for full-range operation. The converter outputs a DC voltage with a superimposed AC vibration signal, suitable for connection to machinery protection monitors, PLC analog inputs, or DCS position cards.
For procurement and maintenance teams, factory-sealed surplus kits reduce risk from prior field installation, cable insulation degradation, connector oxidation, or unknown calibration history.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | EMERSON / EPRO (EPRO GmbH) |
| Probe Model | PR6426/010-110 |
| Converter Model | CON021/916-240 |
| Probe Diameter | 8 mm |
| Mounting | Flange mount (PR6426 standard) |
| Measurement Range | Large-range PR6426 family; ±4 mm is the typical PR6426 configuration |
| Sensitivity | Typically 2 V/mm for PR6426-class probes |
| Cable Configuration | 10 m armored cable (indicated by /010-110); verify exact length on label |
| Sensor Connection | Self-locking LEMO plug |
| Probe Operating Temperature | -35 to +180°C (-31 to 356°F) |
| Converter Operating Temperature | -30 to +100°C (-22 to 212°F) |
| Converter Protection Rating | IP20 |
| Converter Connection | LEMO plug (sensor) + screw terminals (power/signal) |
| Power Supply | -23 to -32 VDC typical |
| Output | DC voltage with superimposed AC vibration signal |
| Standards | API 670, DIN 45670, ISO 10817-1 |
Note: The exact range, sensitivity, cable length, and converter calibration for this specific kit must be confirmed from the nameplate, as PR6426 and CON021/916 variants are configured per application.
Key Selling Points & Differentiators
- Large-range PR6426 probe suitable for differential expansion, casing expansion, and valve position applications.
- Complete probe + converter kit eliminates compatibility risk between sensor and converter.
- CON021/916-240 extended-range converter is designed for larger-range EPRO sensors.
- Flange-mount PR6426 provides stable mechanical installation for large-gap measurements.
- Factory-calibrated against 42CrMo4 steel; no field recalibration required for standard applications.
- Factory-sealed surplus stock reduces risk from prior field installation or cable degradation.
- Not interchangeable with PR6423/PR6424 without verifying range, sensitivity, and converter compatibility.
Quality Transparency SOP (DYNAMIC GENERATION)
For surplus EPRO large-range probe + converter kits, inspection focuses on physical integrity, cable condition, and correct model identification:
- Visual QA: Inspect probe flange, sensing face, armored cable jacket, converter housing, and labels for impact damage, cracking, or corrosion.
- Anti-static handling: Seal in ESD-safe packaging with humidity indicators before shipment.
- Nameplate verification: Confirm probe model PR6426/010-110 and converter model CON021/916-240 match the order.
- Cable & connector inspection: Check armored cable integrity, LEMO plug pins, and screw terminals for wear, oxidation, or bent contacts.
- Fit verification: Where possible, confirm mechanical compatibility with the intended mounting bracket, target surface size, and monitor input requirements.
Technical Risk Avoidance (DYNAMIC GENERATION)
❗ Confirm suffix configuration. The /010-110 suffix defines cable armor, length, and connector type. Verify against the label before installation.
❗ Verify converter range match. The CON021/916-240 is an extended-range converter variant. Ensure it is calibrated for the PR6426 probe range in this kit; mismatched converter calibration causes sensitivity errors.
❗ Do not substitute with PR6423/PR6424. PR6426 has a significantly larger range and lower sensitivity than PR6423. They are not interchangeable without system recalibration.
❗ Check target surface size. Large-range probes require a sufficiently large conductive target surface. Verify the minimum target diameter against the probe datasheet before installation.
❗ Validate hazardous area compliance. CON021/916-240 is IP20 and not inherently suitable for hazardous areas. Confirm whether this specific /916 variant is approved for the intended installation zone.
❗ Verify operating temperature. Standard PR6426 supports -35 to +180°C. For higher-temperature applications, confirm the cable and probe rating.
Buyer’s FAQ
Is this a genuine EPRO sensor kit?
Yes. The PR6426/010-110 + CON021/916-240 is an original EPRO eddy current probe and converter kit. EPRO GmbH was acquired by Emerson in 2009 and is now part of Emerson’s asset optimization portfolio.
What condition is the kit in?
Units are sold as New Original / New Surplus unless otherwise stated. That means unused, factory-sealed inventory rather than field-removed hardware.
Can I use it as a direct replacement?
If your existing installation uses a PR6426/010-110 probe with a CON021/916-240 converter and the cable length, flange configuration, and monitor input match, it should be a like-for-like replacement. Always confirm the nameplate first.
What is the difference between PR6426 and PR6423?
is a large-range flange-mount probe typically used for differential expansion and casing expansion. PR6423 is an 8 mm threaded probe with a smaller range, typically used for shaft vibration and small axial displacement. They are not directly interchangeable.
What does CON021/916-240 mean?
The is an IP20 LEMO-plug converter. The /916 sub-series indicates an extended-range or application-specific variant, and -240 defines the internal configuration. Confirm the exact calibration against the label.
How fast can you ship?
Stock availability determines lead time. For urgent machinery protection maintenance, request expedited shipping at checkout.
Do you offer a warranty?
Yes. Warranty terms are provided at checkout. For surplus sensor hardware, a clear warranty window helps protect against DOA or hidden inventory damage.
If you want, I can also produce a PR6426 vs PR6423 vs PR6424 selection comparison section for your product pages.
