Product Details
Configured for shaft displacement monitoring in rotating machinery, the Emerson EPRO PR9268/201-000 (PR9268/201-000) Relative Shaft Vibration Sensor provides direct electrical execution of eddy-current-based proximity detection.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PR9268/201-000 |
| Brand | Emerson EPRO |
| Operating Temp | -35 deg C to +120 deg C |
| Power Consumption | -24 VDC (Nominal) |
| Measurement Range | 2.0 mm (80 mils) peak-to-peak |
| Sensitivity | 8 mV/um (+/- 5%) |
| Frequency Response | 0 to 3000 Hz |
Mechanical Monitoring and TSI Characteristics
The PR9268/201-000 utilizes eddy-current induction to measure the relative position and vibration of a conductive shaft surface. Accurate rotor dynamics analysis relies on precise eddy-current probe scaling; the sensor must be calibrated to the specific magnetic properties of the target material, typically AISI 4140 steel. During commissioning, gap voltage validation against the nominal -10 VDC target is mandatory to confirm the probe is centered within its linear operating range. To maintain data integrity in multi-probe TSI configurations, ensure adequate spacing between adjacent sensors to provide effective cross-talk suppression and prevent beat-frequency interference in the signal processing chain.
Frequently Asked Questions
Q: What is the significance of the target material composition?
A: Eddy-current sensor sensitivity is highly dependent on the electrical conductivity and magnetic permeability of the target. Deviations from standard ferrous steel (e.g., AISI 4140) will cause non-linear output and require re-calibration of the proximity system.
Q: Can the 5-meter integral cable be extended?
A: The integral cable is a matched component of the inductive system. Any alteration to the cable length or capacitance characteristics will directly affect the resonance frequency of the oscillator circuit, leading to measurement errors. Extension should only be performed using approved system-matched extension cables and connectors.
Field Installation Guidelines
- Ensure the mounting bracket is rigid to prevent mechanical resonance, which can introduce false vibration readings.
- Verify the probe tip-to-target air gap using a feeler gauge or calibrated mechanical spacer during static alignment.
- Observe the -24 VDC nominal supply voltage requirements; ensure the power supply is isolated from process power to prevent ground-induced noise injection.
- Route the integral cable through grounded metallic conduit, keeping it separated from high-voltage AC cabling to mitigate electromagnetic noise.
- Ground the system at the machine chassis or a dedicated instrument ground point to ensure a stable potential reference for the low-level signal.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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