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Emerson PR9268/203-000 Shaft Vibration Sensor
Description
The Emerson PR9268/203-000, also cataloged as the PR9268/203-000 Shaft Vibration Sensor, operates as a dedicated hardware component for absolute mechanical vibration signal acquisition within Emerson epro machinery protection systems and DCS platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PR9268/203-000 |
| Brand | Emerson / epro |
| Origin | USA |
| Weight | 0.4 kg |
| Dimensions | 17 x 8 x 23.5 cm |
| Operating Temp | -20 to +65 deg C |
| Power Consumption | Passive sensor circuit (no external power required) |
| System Platform | epro Machinery Protection / Emerson DCS |
| Sensor Type | Electrodynamic vertical velocity transducer |
| Discontinued Date | Dec 31, 2018 |
| HS Code | 8537101190 |
Process Control & Channel Isolation Characteristics
- Delivers direct electrodynamic velocity measurement outputs compatible with standard 4-20 mA HART loop protocol transmitters and vibration monitor input cards.
- Provides high channel-to-channel isolation between field sensor wiring and control room signal processing equipment to prevent ground loop noise.
- Integrates internal temperature compensation pathways to maintain signal stability across high ambient thermal gradients.
- Transmits raw dynamic velocity signals directly to DCS analog input channels or external signal conditioning gateways.
Frequently Asked Questions
Q: Does the PR9268/203-000 require an external power supply to operate?
A: No, as an electrodynamic velocity transducer, the sensor generates an output voltage proportional to vibration velocity via internal seismic coil motion, requiring no external excitation voltage.
Q: What orientation must be maintained during physical installation?
A: The PR9268/203-000 is calibrated specifically for vertical mounting orientations to ensure correct internal coil alignment along the measurement axis.
Field Installation Guidelines
- Mount the sensor securely onto the machine bearing housing using the designated threaded stud, ensuring a torque setting conforming to standard mechanical mounting specifications.
- Connect twisted-pair shielded cable to the sensor terminals and ground the cable shield at a single point inside the monitoring cabinet.
- Maintain a minimum separation distance of 100 mm between sensor signal cables and high-voltage power lines inside cable trays to prevent electromagnetic noise coupling.
- Ensure all conduit connections are sealed to prevent moisture ingress into the sensor terminal housing.
Additional information
| Weight | 0.4 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 17 x 8 x 23.5 cm |
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