Emerson EPRO PR9268/202-100 Electrodynamic Velocity Sensor
A vertically oriented absolute-vibration sensor with an 8 m armored cable and open cable end.
Product Profile
PR9268/202-100 is an electrodynamic low-tuned velocity sensor for absolute vibration measurement on machinery housings and bearing locations.
Measurement code 20 identifies vertical orientation, cable code 2 identifies an 8 m armored cable, and cable-end code 1 identifies an open cable end; the final 00 completes the standard ordering form.
The spring-mass transducer generates a velocity-proportional signal and is used in machinery protection when mounting direction, frequency response and cable termination match the application.
Technical Data
| Manufacturer | Emerson EPRO |
|---|---|
| Exact model | PR9268/202-100 |
| Sensor type | Electrodynamic velocity sensor |
| Measured quantity | Absolute mechanical vibration velocity |
| Orientation code | 20 — vertical measurement direction |
| Cable option | 2 — 8 m armored cable |
| Cable end | 1 — open cable end |
| Operating principle | Low-tuned spring-mass electrodynamic transducer |
| Typical system role | Machinery protection and condition monitoring |
| Selection requirement | Exact orientation, cable option, termination and mounting documentation |
System Role
Self-generating electrodynamic operation provides a velocity-proportional signal.
Vertical orientation code makes mounting direction explicit.
The 8 m armored lead protects the fixed sensor connection in industrial routing.
Open cable ends support the documented terminal or monitor wiring arrangement.
Compatibility
- Confirm that the channel requires vertical orientation before mounting.
- Record the terminal destination, polarity, shield treatment and cable route for the open lead.
- Inspect the armored cable and mounting surface; avoid stress at the sensor body and cable entry.
- After installation, verify polarity, signal level, frequency response and all alarm or trip functions.
Applications
- Absolute bearing-housing vibration on turbines, compressors, pumps, fans and other rotating machinery.
- Vertical vibration channels in machinery-protection systems.
- Retrofit or like-for-like replacement where the 8 m armored lead and open termination are specified.
FAQ
Can PR9268/202-100 be mounted horizontally?
Use the orientation defined by the ordering code. This model is identified for vertical measurement; select the documented horizontal variant when required.
What cable is supplied with PR9268/202-100?
The code identifies an 8 m armored cable with an open cable end. Preserve the full cable route and terminal record.
Does PR9268/202-100 need an external vibration exciter to generate a signal?
The electrodynamic spring-mass sensor is self-generating, but the connected monitor must still provide the correct input and scaling.
What should accompany a PR9268/202-100 enquiry?
Provide the full label, mounting direction, machine location, cable route, terminal drawing, monitor input and required approval evidence.
How should PR9268/202-100 be tested after installation?
Confirm mounting security, polarity, channel scaling, measured response against a reference and every associated alarm or protection action.
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