Emerson PR9268/207-100 Vertical Velocity Sensor
A vertical velocity sensor with a 10 m non-armored open-end cable for absolute casing-vibration measurement.
Product Identification
PR9268/207-100 is an Emerson electrodynamic case-vibration sensor with vertical orientation, 28.5 mV/mm/s sensitivity and a 4 to 1000 Hz frequency range.
The 7 ordering digit selects a 10 m non-armored cable, while the 1 cable-end digit selects an open cable end. This construction must not be confused with the armored PR9268/203-100.
Engineering Data
| Manufacturer | Emerson |
|---|---|
| Model | PR9268/207-100 |
| Measurement | Absolute case vibration velocity |
| Orientation | Vertical; ±30° without sinking current, ±60° with sinking current |
| Sensitivity | 28.5 mV/mm/s |
| Frequency Range | 4 to 1000 Hz |
| Temperature Range | -20 to +100°C |
| Cable | 10 m, non-armored |
| Cable End | Open cable end |
| Protection | IP55 |
| Power | Self-powered |
| Housing | Al Mg Si Pb F 28 |
Functions
- Provides low-frequency absolute vibration velocity for machinery-protection use.
- Uses a flexible ten-meter non-armored lead for protected conduit or tray routes.
- Allows direct field termination through its open cable end.
- Maintains the standard vertical PR9268 dynamic response.
Applications
- Industrial drive and machinery-protection maintenance
- Configuration-controlled spare replacement
- Planned outage and reliability support
Lifecycle
- Retain the complete model, hardware revision, host equipment and removal photographs in the asset record.
- Keep the spare clean, dry and protected from electrostatic discharge, connector damage and cable deformation.
- Review current manufacturer lifecycle information and an approved migration path before a critical shutdown.
FAQ
PR9268/207-100: When is the non-armored lead appropriate?
Use it only where the approved installation provides adequate conduit, tray or other mechanical protection and meets the environmental and area-classification requirements.
PR9268/207-100: How can it be kept distinct from PR9268/203-100 in stores?
Label the package and cable construction clearly: PR9268/207-100 is non-armored; PR9268/203-100 is armored. Preserve the full suffix on every stock record.
PR9268/207-100: What should be specified for the open-end termination?
Record conductor-to-terminal mapping, shield treatment, gland or conduit entry, barrier/isolator model and monitor channel.
PR9268/207-100: Can excess cable be tightly coiled beside the sensor?
Avoid tight coils and mechanical loading near the sensor. Route and support the lead using the approved bend radius and site wiring practice.
PR9268/207-100: What evidence should accompany a replacement quote?
Include both nameplates, cable-route length, terminal drawing, monitor input, approval requirement and photographs of the existing installation.
PR9268/207-100: Which checks help diagnose post-installation noise?
Inspect shield bonding, grounding, cable separation, terminal tightness, monitor input load and any mechanical cable movement at the sensor.
