330525-01
330525-01
330525-01
330525-01
330525-01
330525-01
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330525-01

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Bently Nevada 330525-01 is a ruggedized Velomitor XA piezo-velocity sensor with CSA/NRTL/C approval option.
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Technical specifications for 330525-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330525-01
  • Product Family:
    330500 Velomitor Piezo-velocity Sensor
  • Product Type:
    Velomitor XA piezo-velocity sensor
  • Stock:
    1
  • Product family:
    Velomitor XA
  • Measurement:
    Piezo-velocity
  • Sensitivity:
    3.94 mV/mm/s (100 mV/in/s)
  • Frequency response:
    4.5–2000 Hz (±3 dB)
  • Precision band:
    6–1000 Hz (±0.9 dB)
  • Supply voltage:
    -22 to -30 V DC
  • Supply current:
    2.5–6 mA
  • Operating temperature:
    -55 to 121 °C
  • Housing material:
    316L stainless steel
  • Environmental rating:
    IP65 / NEMA 4X when correctly installed
  • Maximum mounting torque:
    45 N·m
  • Approval option:
    CSA/NRTL/C
  • Weight:
    0.156 kg
  • Estimated shipping dimensions:
    2.8 x 2.8 x 7.31 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    USA
  • 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 Sensor Output Frequency Response Mounting & Protection Product Applications

Features:

  • Rugged velocity sensor: A 316L stainless-steel housing protects the piezo-velocity transducer.
  • Industrial response range: The sensor covers casing-vibration frequencies from 4.5 Hz to 2 kHz at the published tolerance.
  • Constant-current output: The dynamic signal operates from a compatible -22 to -30 V DC monitoring supply.
Measurement role: The Velomitor XA measures absolute vibration velocity at the machine casing.

Installation role: A rigid mounting path and correctly installed mating cable preserve mechanical response and environmental sealing.

Approval role: Order suffix 01 identifies the CSA/NRTL/C option and keeps certification scope explicit.

Apter Power supports Bently Nevada 330525-01 Velomitor XA piezo-velocity sensor sourcing with quotations, technical documentation and configuration review.
Bently Nevada 330525-01 Velomitor XA piezo-velocity sensor Manuals,Datasheets,Link 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.
  • Velocity sensitivity: The nominal output is 3.94 mV/mm/s, equivalent to 100 mV/in/s.
  • Bias supply: Compatible monitoring electronics provide -22 to -30 V DC.
  • Operating current: The sensor is designed for a 2.5–6 mA constant-current circuit.
  • Measurement object: The output represents absolute casing vibration velocity.
  • Broad band: The published ±3 dB response extends from 4.5 Hz to 2 kHz.
  • Precision band: A tighter ±0.9 dB tolerance applies from 6 Hz to 1 kHz.
  • Low-frequency boundary: Phenomena below the qualified band may require another sensor type.
  • Channel scaling: The monitor must use the matching sensitivity to report correct velocity values.
  • Housing: The transducer case is made from 316L stainless steel.
  • Mounting torque: The attachment should not exceed the published 45 N·m limit.
  • Environmental seal: IP65 and NEMA 4X depend on correct installation with the mating cable.
  • Temperature range: The sensor is specified for operation from -55 to 121 °C.
  • Bearing-housing vibration: The sensor measures casing velocity on rotating machinery supports.
  • Permanent monitoring: Its rugged housing and connector suit fixed industrial installations.
  • Wide-band diagnostics: The response covers common mechanical vibration frequencies within the specified band.
  • Approved North American systems: Suffix 01 serves projects that require the CSA/NRTL/C option.
Description
Rugged machinery velocity measurement is the purpose of the Bently Nevada 330525-01 Velomitor XA sensor. Its 316L stainless-steel case and weatherproof connector give the transducer a durable mechanical package for permanent installation on industrial equipment.

The 330525-01 provides a 100 mV/in/s velocity sensitivity and covers a published 4.5 Hz to 2 kHz frequency range. This response makes the sensor useful where the monitoring channel is designed for casing vibration rather than the relative shaft measurements handled by proximity probes.

Powered from a compatible constant-current monitoring input, the 330525-01 delivers its dynamic vibration signal through the mating cable. The 01 suffix identifies the CSA/NRTL/C approval option; other certification packages should not be inferred from the base Velomitor XA name.
Alternative Names
33052501 330525 01 330525-O1 330525-0I 330525 Velomitor XA Velomitor XA 330525 Bently 330525-01 330525 piezo velocity sensor
Technical notes
IP65 and NEMA 4X protection for 330525-01 depends on correct installation with the specified mating cable. The stainless housing alone does not seal an open or mismatched connector, so the cable termination and connector condition are part of the environmental-protection decision for an outdoor or washdown installation.
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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.
Is 330525-01 suitable for a monitoring channel configured for 100 mV/in/s velocity sensors?
Yes. Its nominal sensitivity is 100 mV/in/s, equivalent to 3.94 mV/mm/s. Matching that sensitivity in the monitor avoids a scaling error that could make otherwise healthy vibration appear too high or too low.
Can 330525-01 measure a machine condition dominated below 4.5 Hz?
Its published ±3 dB response begins at 4.5 Hz, so a slower phenomenon may fall outside the qualified measurement band. A lower-frequency transducer should be considered when the diagnostic target sits below that limit.
Can 330525-01 be used on equipment running near 120 °C?
The sensor is rated from -55 to 121 °C, making that temperature technically close to its upper limit. Installation heat paths and process excursions should leave reasonable margin rather than using the maximum as a routine target.
What mounting practice matters when installing 330525-01 on a bearing housing?
The mounting surface should provide a rigid mechanical path and the sensor should stay within the published 45 N·m maximum torque. A soft adapter, loose interface or excessive torque can reduce signal quality or damage the mounting arrangement.
Does the 01 suffix on 330525-01 include ATEX or IECEx approval?
The 01 option is the CSA/NRTL/C approval configuration. It should not be presented as ATEX or IECEx certified; select and document the approval version that matches the project’s jurisdiction and area classification.
Can 330525-01 replace a proximity probe on an existing shaft-vibration channel?
It measures absolute casing velocity, while a proximity probe measures relative shaft position or vibration. The sensor can be valuable on the same machine, but it is not a direct replacement without changing the monitoring method and channel configuration.