Emerson PR9268/603-000 High-Temperature Velocity Sensor
A self-powered vertical high-temperature case-vibration sensor with a 10 m armored cable and Harting plug.
Product Identification
PR9268/603-000 is an Emerson electrodynamic velocity sensor for absolute case-vibration measurement on critical turbomachinery. The /60 family is a vertical high-temperature design for operation to 200°C.
The ordering digits select a 10 m armored cable and Harting plug. The sensor is self-powered and intended for turbines, compressors, pumps and fans where case vibration is part of the machinery-protection strategy.
Engineering Data
| Manufacturer | Emerson |
|---|---|
| Model | PR9268/603-000 |
| Measurement | Absolute case vibration velocity |
| Orientation | Vertical; ±30° without sinking current, ±60° with sinking current |
| Temperature Range | -20 to +200°C |
| Frequency Range | 10 to 1000 Hz |
| Natural Frequency | 8 Hz ±1.5 Hz at 20°C |
| Transverse Sensitivity | 0.10 at 80 Hz |
| Sensitivity | 22.0 mV/mm/s ±5% at pin 3 with 100 Ω load; 16.7 mV/mm/s ±5% at pins 1 or 4 with specified loads |
| Cable | 10 m, armored PTFE cable |
| Cable End | Harting plug |
| Protection | IP65 |
| Housing / Armor | Stainless steel |
| Power | Self-powered |
| High-Temperature Approval Family | PR9268/60x-000 Ex ib options; verify the ordered approval loop |
Functions
- Measures absolute bearing-case vibration without an external sensor power supply.
- Supports vertical high-temperature installations up to 200°C.
- Provides a fixed ten-meter armored cable and robust Harting connection.
- Offers selectable output pins with defined load resistances and sensitivities.
Applications
- Configuration-controlled industrial maintenance and shutdown planning
- Exact-suffix spare identification for installed automation assets
- Reliability support where labels, revisions and interfaces must remain traceable
Lifecycle
- Record the complete model, host equipment, hardware revision and removal photographs in the asset history.
- Store the spare in clean, dry, ESD-safe packaging with connectors and mechanical interfaces protected.
- Confirm current manufacturer lifecycle status and an approved migration path before a critical outage.
FAQ
PR9268/603-000: Why must the output pin and load be recorded?
The specified sensitivity depends on the selected pin and load resistance; a mismatch changes channel scaling.
PR9268/603-000: What should be checked along the ten-meter cable route?
Review bend radius, support, armor damage, hot surfaces, connector temperature, grounding and separation from electrical noise.
PR9268/603-000: Can a horizontal PR9268 version replace this sensor?
No direct substitution should be made; orientation family, internal suspension, cable configuration and approval details must match.
PR9268/603-000: Which documents help confirm hazardous-area suitability?
Provide the full sensor label, area classification, barrier or monitor input, wiring drawing and required ATEX or IECEx approval.
PR9268/603-000: What acceptance tests are useful after installation?
Verify polarity, output-pin load, channel scaling, noise floor, baseline vibration and alert/danger response.
PR9268/603-000: What should a critical spare package include?
Specify the exact sensor, ten-meter armored cable, Harting connector condition, calibration or sensitivity evidence and protective transport packaging.
