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PR9268-302-100

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Emerson PR9268-302-100 is a horizontal electrodynamic velocity sensor with an 8 m armored cable and open cable end.
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Technical specifications for PR9268-302-100

  • Manufacturer:
    Emerson
  • Part Number:
    PR9268-302-100
  • Product Family:
    AMS 6500 Machinery Health Monitor
  • Product Type:
    Electrodynamic Velocity Sensor
  • Stock:
    1
  • Measurement Orientation:
    Horizontal
  • Cable Protection:
    Armored
  • Cable Length:
    8 m
  • Cable End:
    Open cable end
  • Frequency Range:
    4...1000 Hz
  • Natural Frequency:
    4.5 Hz ±0.75 Hz at 20 °C and 100 kΩ
  • Sensitivity:
    28.5 mV/(mm/s) ±5% at 20 °C, 80 Hz, and 100 kΩ
  • Damping Factor:
    0.56 at 20 °C; 0.42 at 100 °C
  • Common Vibration Amplitude:
    3000 µm p-p
  • Limit Stops:
    4000 µm p-p
  • Permissible Acceleration:
    10 g p-p continuous; 20 g p-p short duration
  • Circuit Resistance:
    1875 Ω ±10%
  • Cable:
    3×0.5 mm² shielded, PTFE-coated
  • Minimum Bend Radius:
    35 mm
  • Sensor Temperature:
    −20...100 °C; up to 120 °C for less than 4 h
  • Protection Class:
    IP55
  • Weight:
    0.93 kg
  • Tariff Code:
    9031809090
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Cable Alignment Diagnostics Application

Features:

  • Electrodynamic spring-mass sensing for absolute vibration velocity in the horizontal direction
  • The ordering code provides a 8 m armored cable for protected fixed routing
  • An open cable end supports connection to the specified measuring and protection circuit

Emerson PR9268-302-100 converts housing vibration into an electrical signal without an external excitation supply.

The horizontal configuration must be installed within the official angular limits so gravity acts on the spring-mass system as intended.

Confirm the mounting plane, signal polarity, cable route, electrical load, machine frequency range, environmental limits, and hazardous-area circuit before commissioning.

Availability, condition, price, and shipping time for PR9268-302-100 are confirmed during quotation.

Emerson PR9268-302-100 Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Code 2 specifies an 8 m armored cable
  • Suffix 100 specifies an open cable end
  • The cable uses three 0.5 mm² shielded conductors with PTFE coating
  • Code 30 identifies horizontal measurement
  • Permissible deviation is ±10° without lifting or sinking current
  • Permissible deviation is ±30° when the approved current is used
  • The measuring-circuit resistance is 1875 Ω ±10%
  • Insulation resistance is greater than 1 MΩ at 500 V AC
  • Inductance is below 90 mH and capacitance to housing including cable is below 1.2 nF
  • Monitor horizontal case vibration on steam, gas and hydro turbines with PR9268-302-100
  • Measure horizontal bearing-housing vibration on compressors and pumps
  • Provide velocity-based protection input for fans and other critical rotating machinery
Description

PR9268-302-100 is an Emerson Epro electrodynamic velocity sensor for absolute vibration measurement in the horizontal direction.

The official PR9268/302-100 configuration provides an 8 m armored cable with an open cable end, 4...1000 Hz response, and 28.5 mV/(mm/s) nominal sensitivity.

Before installing or replacing PR9268-302-100, verify the horizontal mounting direction, allowed angular deviation, mounting surface, cable route, 35 mm bend radius, polarity, load, temperature, vibration amplitude, and hazardous-area circuit.

Alternative Names
PR9268-302-100 PR9268/302-100 PR9268302100 PR9268 302 100 Emerson PR9268-302-100 Emerson Epro PR9268/302-100 Epro PR9268-302-100
Technical notes
PR9268-302-100 requires horizontal alignment, rigid mounting, correct polarity and 100 kΩ reference loading, protected routing of its 8 m armored cable, and verification of temperature and approval limits.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What must be considered when routing the 8 m cable of Emerson PR9268-302-100?
Plan a fixed protected route with strain relief, at least 35 mm bend radius, separation from hot or moving parts, and correct shield and polarity termination at the monitoring cabinet.
What is the difference between Emerson PR9268-302-100 and PR9268-301-100?
Both are horizontal open-end versions, but code 2 specifies an 8 m armored cable while code 1 specifies 5 m. Do not shorten or substitute without checking the installation and channel wiring.
How should the open cable end of Emerson PR9268-302-100 be identified before connection?
Use the Emerson wiring diagram and preserve conductor identification, polarity, shield, insulation, and terminal assignment. Do not infer wiring from color alone if the cable has been repaired.
Why does mounting angle matter for Emerson PR9268-302-100?
The electrodynamic spring-mass system is orientation-dependent. Keep horizontal alignment within ±10° without current or within ±30° only with the approved lifting or sinking current.
What should be checked after an overload event on Emerson PR9268-302-100?
Inspect mounting security, cable and armor, continuity, insulation, circuit resistance, zero behavior, and monitored response. The guide specifies continuous and short-duration acceleration limits and mechanical amplitude stops.
Does the 8 m cable of Emerson PR9268-302-100 change hazardous-area verification?
Cable capacitance and the complete intrinsically safe loop must remain within the certificate values. Verify the barrier, cable route, shield, ambient class, and local requirements.
What information should accompany a quote for Emerson PR9268-302-100?
Provide the complete PR9268/302-100 designation, label and full cable photos, open-end condition, mounting orientation, monitor type, required condition, and quantity.