Technical specifications for PR9268-202-100
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Manufacturer:Emerson
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Product Category:Machinery Monitoring Systems
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Spare Part Number:PR9268-202-100
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Estimated shipping dimensions:18x18x8cm
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Weight:0.75 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Measuring orientation:Vertical; up to 100 degC
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Cable construction:Armored
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Cable length:8 m
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Cable termination:Open ends
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Frequency range:4 to 1000 Hz
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Natural frequency:4.5 +/-0.75 Hz at 20 degC
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Sensitivity:28.5 mV/(mm/s) +/-5%
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Damping:0.56 at 20 degC; 0.42 at 100 degC
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Measuring-circuit resistance:1875 Ohm +/-10%
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Insulation resistance:>1 MOhm at 500 V AC
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Inductance:<90 mH
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Capacitance to housing:<1.2 nF including cable
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Maximum lifting/sinking current:1.8 mA
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Operating temperature:-20 to +100 degC
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Ingress protection:IP55
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Minimum cable bend radius:35 mm
Information
- Designed for vertical measuring points
- Uses an eight-metre armored connection
- Maintains nominal 28.5 mV per mm/s sensitivity
- Operates across 4 to 1000 Hz
PR9268-202-100 operates with AMS 6500 A6120 monitor, Vertical case mounting pad, Open-end cabinet termination, Approved velocity-channel configuration.
Engineered applications include Vertical pump casing vibration, Hydro-turbine support monitoring, Remote generator bearing points, Long-route case-seismic protection.
Important Notice: Confirm vertical orientation, eight-metre cable routing, base flatness and conductor polarity; verify the channel at controlled machine speed before protection release.
Apter Power PR9268-202-100 Manuals and Guides
Apter Power PR9268-202-100 Measurement-System Technical Reference PDFApter Power PR9268-202-100 Installation, Loop Check and Acceptance Workbook PDFThe first document provides model-specific technical and measurement-system reference data. The second is a separate field workbook for mounting, wiring, commissioning and acceptance records.
Vertical pump casing vibration
Measures absolute velocity at vertically oriented machine points.
Hydro-turbine support monitoring
Supports low-frequency structural motion monitoring.
Remote generator bearing points
Reaches remote cabinet terminations through the integral eight-metre lead.
Long-route case-seismic protection
Feeds protection and trending channels without external sensor power.
Confirm the full PR9268-202-100 marking, vertical measuring orientation and assigned machine location before removal.
Place the monitored machine and protection logic in the approved maintenance state before sensor work.
Use the three M6 through bores or M4 blind-hole threads without exceeding the documented 10 mm blind-thread depth.
Support the 8 m armored cable and maintain at least the documented 35 mm bending radius.
Preserve the measuring axis and housing contact surface; do not introduce tilt, rocking or loose mounting.
Identify both open-ended cable conductors and preserve shield and polarity continuity to the monitor channel.
Measure the sensor circuit and insulation condition before reconnecting it to the monitoring input.
Run the machine under controlled conditions and verify velocity response, phase behavior and alarm logic.
Technical notes
FAQ View All FAQ
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What measurement or system function does PR9268-202-100 perform?PR9268-202-100 is a pr9268 electrodynamic velocity sensor. It measures vertical absolute vibration velocity and carries the self-generated signal over an eight-metre armored open-ended cable.
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Which installed hardware must be paired with PR9268-202-100?Use PR9268-202-100 with the documented PR9268 vertical case-seismic measurement components: AMS 6500 A6120 monitor, Vertical case mounting pad, Open-end cabinet termination.
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How should the Measuring orientation value for PR9268-202-100 be verified?Confirm the complete nameplate and order code before work; the documented measuring orientation is Vertical; up to 100 degC.
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What connection detail is critical when installing PR9268-202-100?Preserve every conductor, connector and shield identity, then follow the model-specific connection arrangement described in the controlling Emerson document.
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How is PR9268-202-100 mechanically installed without changing measurement behavior?Use the three M6 through bores or M4 blind-hole threads without exceeding the documented 10 mm blind-thread depth.
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What commissioning test should be completed for PR9268-202-100?Run the machine under controlled conditions and verify velocity response, phase behavior and alarm logic.
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What configuration record should be retained when replacing PR9268-202-100?Retain the as-found position, cable construction, cable or channel identity, gap or scaling value, diagnostics and final functional-test result.
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Can PR9268-202-100 replace a similar Emerson model without engineering review?No direct substitution should be assumed; verify the full order code, measuring function, interface, cable or channel arrangement and the approved PR9268 vertical case-seismic measurement configuration.
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