EPRO PR6426/000-110 CON021 – Non-Contact Eddy Current Displacement Sensor | EPRO Proximity System
Engineering Background
The EPRO PR6426 series is a field-proven eddy current proximity sensor engineered for continuous, non-contact measurement of shaft radial vibration, axial position, and differential expansion in rotating machinery. Developed under the EPRO (now Baker Hughes / Bently Nevada ecosystem) platform, the PR6426/000-110 paired with the CON021 extension cable represents a complete sensing chain optimized for turbomachinery protection systems operating in harsh industrial environments.
Product Positioning
Designed for procurement engineers specifying vibration monitoring instrumentation in power generation, petrochemical, and heavy industrial plants. This sensor assembly integrates directly with EPRO MMS 6000 series monitors and is backward-compatible with legacy Bently Nevada 3300 XL signal conditioning infrastructure, making it the preferred drop-in solution for both greenfield installations and brownfield retrofits.
Complete Technical Specifications
| Part Number | PR6426/000-110 |
| Extension Cable | CON021 |
| Manufacturer | EPRO (Baker Hughes) |
| Sensor Type | Eddy Current / Inductive Proximity |
| Measurement Principle | Non-contact electromagnetic induction |
| Nominal Gap Range | 0 – 2.0 mm (standard linear range) |
| Sensitivity | 8 mV/µm (nominal) |
| Frequency Response | DC – 10 kHz (–3 dB) |
| Operating Temperature | –40 °C to +120 °C (sensor tip) |
| Cable Length (CON021) | Matched extension cable, system-calibrated |
| Connector Type | MIL-C-5015 compatible |
| Housing Material | Stainless steel, hermetically sealed |
| IP Rating | IP67 |
| Supply Voltage | –24 VDC (via driver/oscillator) |
| Output Signal | –2 VDC to –18 VDC (gap-proportional) |
| Target Material | Steel / non-ferrous metals (calibrated for steel) |
| Weight | ~300 g (sensor + cable assembly) |
| Compliance | API 670, ISO 10816, CE |
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Compressor rotor axial position measurement
- Pump and motor bearing proximity sensing
- Differential expansion monitoring in thermal power plants
- Gearbox and expander rotor dynamics analysis
- Offshore platform rotating equipment protection systems
Engineering Advantages
- Non-contact measurement — zero mechanical wear, unlimited service life under normal operating conditions
- Wide temperature tolerance — reliable from cryogenic to high-temperature turbine environments
- System-calibrated cable assembly — CON021 extension cable matched to sensor for guaranteed linearity; no field recalibration required
- API 670 compliant — meets machinery protection standard for critical rotating equipment
- Direct monitor compatibility — plug-and-play with EPRO MMS 6000 and legacy Bently Nevada 3300 XL systems
- Hermetically sealed housing — IP67 rated for oil mist, steam, and washdown environments
System Architecture & Signal Flow
The PR6426/000-110 + CON021 assembly operates as part of a three-component eddy current measurement chain:
- Sensor Probe (PR6426/000-110) — generates high-frequency electromagnetic field; detects gap change via impedance variation in target material
- Extension Cable (CON021) — system-calibrated coaxial cable transmitting oscillator signal and DC output; length-matched to maintain sensitivity specification
- Driver / Oscillator Module — typically EPRO PR9268 or equivalent; provides –24 VDC excitation and converts impedance change to DC voltage output for monitor input
Output voltage is linearly proportional to probe-to-target gap. Signal is fed directly to EPRO MMS 6000 or Bently Nevada 3300 XL monitor input cards for alarm, trip, and trend processing.
Sourcing & Quality Verification
- Units sourced from authorized distributors and verified OEM supply channels
- Each unit inspected for physical integrity, connector condition, and cable continuity prior to dispatch
- Original manufacturer labeling and serial number preserved — no remarking or repackaging
- Certificate of conformance (CoC) available upon request for critical plant applications
- Traceability documentation available for regulated industries (nuclear, offshore, power generation)
Procurement Process
- Submit inquiry with required quantity and delivery timeline to support@konmask.com
- Receive quotation with lead time, unit price, and shipping options within 1 business day
- Confirm purchase order — payment via T/T, PayPal, or trade terms for qualified accounts
- Dispatch within 3–7 business days; express air freight available for urgent requirements
- Post-delivery technical support provided for installation and commissioning queries
Technical FAQ
Q: Is the CON021 cable interchangeable with other PR6426 variants?
A: No. The CON021 is system-calibrated specifically for the PR6426/000-110 probe. Mixing cables from different calibration sets will degrade linearity and sensitivity accuracy. Always replace as a matched assembly.
Q: Can this sensor be used with Bently Nevada 3300 XL monitors?
A: Yes. The PR6426 series is signal-compatible with Bently Nevada 3300 XL input cards. Verify driver oscillator compatibility before installation.
Q: What target material is the calibration based on?
A: Factory calibration is performed against AISI 4140 steel. For non-ferrous targets (aluminum, titanium), a correction factor must be applied — consult EPRO application engineering or Konmask technical support.
Q: Do you provide installation and commissioning support?
A: Yes. Konmask technical team provides remote commissioning guidance, gap-setting procedures, and signal verification support at no additional charge for orders placed through our platform.
Q: What is the typical lead time for stock items?
A: In-stock units ship within 3–5 business days. For urgent requirements, contact us directly for express dispatch options.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
