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PR9268-301-100

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Emerson PR9268-301-100 is a horizontal electrodynamic velocity sensor with a 5 m armored cable and open cable end.
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Technical specifications for PR9268-301-100

  • Manufacturer:
    Emerson
  • Part Number:
    PR9268-301-100
  • Product Family:
    AMS 6500 Machinery Health Monitor
  • Product Type:
    Electrodynamic Velocity Sensor
  • Stock:
    1
  • Measurement Orientation:
    Horizontal
  • Cable Protection:
    Armored
  • Cable Length:
    5 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 Mounting Circuit Hazardous Application

Features:

  • Electrodynamic spring-mass sensing for absolute vibration velocity in the horizontal direction
  • The ordering code provides a 5 m armored cable for protected fixed routing
  • An open cable end supports connection to the specified measuring and protection circuit

Emerson PR9268-301-100 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 PR9268-301-100 are confirmed during quotation.

Emerson PR9268-301-100 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 30 identifies the horizontal-measurement configuration
  • The sensor base must be fastened to a rigid, flat machine surface
  • Signal polarity follows the arrow and terminal identification in the installation guide
  • The recommended maximum lifting or sinking current for permitted angular deviation is 1.8 mA.
  • Measuring-circuit inductance is below 90 mH.
  • Insulation resistance is greater than 1 MΩ at a 500 V AC test voltage.
  • Intrinsically safe installations require the approved safety-barrier circuit.
  • The metal cable-protection hose must be connected to protective earth with metal clamps.
  • In Zone 0, protect the sensor housing against possible impact or friction sparks.
  • Monitor horizontal case vibration on steam, gas and hydro turbines with PR9268-301-100
  • Measure horizontal bearing-housing vibration on compressors and pumps
  • Provide velocity-based protection input for fans and other critical rotating machinery
Description
PR9268-301-100 is an Emerson Epro electrodynamic velocity sensor for absolute vibration measurement in the horizontal direction.

The official PR9268/301-100 configuration provides a 5 m armored cable with an open cable end, 4...1000 Hz response, and 28.5 mV/(mm/s) nominal sensitivity.

Before installing or replacing PR9268-301-100, 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
PR9268-301-100 PR9268/301-100 PR9268301100 PR9268 301 100 Emerson PR9268-301-100 Emerson Epro PR9268/301-100 Epro PR9268-301-100
Technical notes
PR9268-301-100 requires horizontal alignment, rigid mounting, correct polarity and 100 kΩ reference loading, protected routing of its 5 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.
How accurately must Emerson PR9268-301-100 be aligned horizontally?
Install it horizontally within ±10° when no lifting or sinking current is used. With the approved current, the permissible deviation increases to ±30°.
What should be checked before routing the 5 m cable on Emerson PR9268-301-100?
Check the fixed route, 35 mm minimum bend radius, strain relief, hot surfaces, moving parts, shield termination, polarity, and the available path to the monitoring channel.
What mounting surface is required for Emerson PR9268-301-100?
Use a rigid, flat machine surface and tighten the sensor in the documented orientation. A flexible bracket or incorrect plane can change the mechanical response.
Can Emerson PR9268-301-100 be connected in a hazardous area without a barrier?
Do not assume so. Verify the exact approval marking, intrinsically safe circuit values, barrier, cable capacitance, ambient temperature, and local installation rules.
What electrical checks help diagnose Emerson PR9268-301-100?
Check the measuring-circuit resistance, insulation to housing, continuity, polarity, shield condition, connector or terminal integrity, and the monitoring input load before condemning the sensor.
Can Emerson PR9268-301-100 replace Emerson PR9268-201-100?
Not as a direct orientation-equivalent replacement. PR9268/301-100 is horizontal and PR9268/201-100 is vertical; confirm mounting direction and channel configuration.
What information should accompany a quote for Emerson PR9268-301-100?
Provide the full PR9268/301-100 code, label photos, cable and open-end condition, mounting orientation, monitor type, required condition, and quantity.