Bently Nevada 190501-00-00-04
Bently Nevada 190501-00-00-04
Bently Nevada 190501-00-00-04
Bently Nevada 190501-00-00-04
Bently Nevada 190501-00-00-04
Bently Nevada 190501-00-00-04
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190501-00-00-04

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The 190501-00-00-04 is a Velomitor CT Velocity Transducer designed for low-frequency vibration monitoring on cooling tower and air-cooled heat-exchanger fan assemblies.
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Technical specifications for 190501-00-00-04

  • Manufacturer:
    Bently Nevada
  • Part Number:
    190501-00-00-04
  • Product Family:
    190501 Velomitor CT Transducer
  • Product Type:
    Velomitor CT Velocity Transducer
  • Measurement Type:
    Low-frequency casing vibration velocity
  • Minimum Operating Speed:
    90 rpm
  • Typical Operating Range:
    100 to 300 rpm
  • Mounting Hardware:
    No stud (user-supplied mounting)
  • Connection Interface:
    MIL-C-5015
  • Agency Approvals:
    CSA/NRTL/C (Class I, Div 1); ATEX/IECEx/CSA (Class I, Zone 0/1)
  • Key Benefit:
    Solves the pain point of low-frequency vibration measurement in slow-speed rotating equipment—captures data from 90 rpm upward, enabling early detection of fan imbalance, bearing wear, and speed reducer issues. Flexible mounting accommodates custom installations and retrofits.
  • Weight:
    0.3 kg
  • Estimated shipping dimensions:
    8.3x3.5x3.2cm
  • Tariff Code:
    8543902100
  • 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 Specifications Applications Certifications Compatibility

Features:

  • Low-frequency sensitivity down to 90 rpm enables accurate vibration measurement on slow-speed cooling tower and heat-exchanger fans.
  • No integral stud mounting allows flexible installation using user-supplied methods such as adhesive, clamps, or custom brackets for retrofit applications.
  • Multiple hazardous area approvals (CSA/NRTL/C Division 1, ATEX/IECEx/CSA Zone 0/1) allow deployment in classified locations worldwide.
The 190501-00-00-04 is specifically engineered to overcome the limitations of standard velocity sensors at low rotational speeds. While conventional sensors lose sensitivity below 600 rpm, this transducer maintains accurate measurements down to 90 rpm, covering the typical operating range of cooling tower and air-cooled heat-exchanger fans (100 to 300 rpm).

Unlike models with integral stud mounting, the 190501-00-00-04 allows users to supply their own mounting method. This flexibility is particularly valuable in retrofit applications where existing mounting points do not match standard stud patterns, or on non-metallic surfaces where drilling may be impractical.

The 190501-00-00-04 carries multiple hazardous area certifications, including CSA/NRTL/C for Class I, Division 1 locations and ATEX/IECEx/CSA for Class I, Zone 0/1 environments. These approvals allow the same transducer to be installed in refineries, chemical plants, offshore platforms, and other classified locations across North America, Europe, and international markets.

The 190501-00-00-04 Bently Nevada Velomitor CT Velocity Transducer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Bently Nevada 190501-00-00-04 Velomitor CT Velocity Transducer Manuals, Datasheets, Drivers, 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.
Bently Nevada 190501-00-00-04 Velomitor CT Velocity Transducer Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 190501-00-00-04
  • Condition New Original ready stock
  • Product Family 190501-05-00-04,190501-06-00-04,190501-07-00-04
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.
  • Cooling Towers and Air Coolers (ACC): Monitors the overall vibration of large fans, gearboxes, and drive shafts.
  • Low-Speed ​​Rotating Machinery: Suitable for equipment with speeds down to 90 rpm, capturing low-frequency energy generated by imbalance, misalignment, or gear wear.
  • Casing Vibration Measurement: Measures the velocity of machine bearing housings or casings to assess structural fatigue and mechanical health.
  • Explosion-proof Approvals: -04 typically corresponds to a combination of multi-national certifications (such as ATEX, IECEx, CSA, NEPSI), allowing installation in hazardous areas such as Zone 0/1 or Class I, Div 1.
  • Protection Rating: The enclosure reaches IP67 (or higher), providing resistance to 100% humidity and condensation, suitable for outdoor rainy or spray environments.
  • Electromagnetic Compatibility (EMC): Complies with CE standards, possessing extremely strong resistance to electromagnetic interference, preventing false alarms caused by industrial electrical noise.
  • System Compatibility: Fully compatible with 3500/70M (reciprocating/speed monitor) or 3500/72M (pole distance monitor) modules.
  • Distributed System: Connects to ADAPT 3701 or Distributed vB3 monitoring platform.
  • Wiring and Transmission: Uses 2-core shielded twisted-pair cable for connection, supporting long-distance transmission (up to approximately 300 meters) with extremely low signal attenuation. Compatible with standard 2-core MIL-compliant cables (such as the 16710 series).
Description
The 190501-00-00-04 is a low-frequency version of the standard Velomitor Piezo-velocity Sensor, specifically engineered to measure casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies. It captures vibration amplitudes at operating speeds from 90 rpm upward, with typical ranges of 100 to 300 rpm—frequencies where standard velocity sensors often lack sensitivity. 

With no integral stud mounting hardware, the 190501-00-00-04 allows users to supply their own mounting method, offering flexibility for custom installations or retrofit applications where existing mounting points may not match standard stud patterns. The transducer measures both the fundamental fan vibration frequencies and the higher frequencies generated by the fan motor and speed reducer, providing a complete picture of drive train health.

The 190501-00-00-04 carries CSA/NRTL/C certification for Class I, Division 1 locations, as well as ATEX/IECEx/CSA for Class I, Zone 0/1 environments. These multi-agency approvals make it suitable for global deployment without requiring region-specific variants.

This transducer solves the pain point of accurately measuring low-frequency vibration in slow-speed rotating equipment where standard sensors fall short. By providing reliable data from 90 rpm upward, the 190501-00-00-04 enables early detection of fan imbalance, bearing wear, and speed reducer issues before they lead to catastrophic failure. 
Alternative Names
190501-05-00-04 190501-06-00-04 190501-07-00-04 190501-08-00-04
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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 types of equipment is the 190501-00-00-04 designed for?
Cooling tower fan assemblies and air-cooled heat-exchanger fans operating at 90 rpm or higher, typically 100 to 300 rpm.
What hazardous area approvals does this transducer carry?
CSA/NRTL/C for Class I, Division 1, and ATEX/IECEx/CSA for Class I, Zone 0/1—allowing use in explosive environments.
How is this model mounted since it has no integral stud?
Users supply their own mounting method—adhesive, clamp, or custom bracket—offering flexibility for retrofit applications or non-standard mounting surfaces.
What type of connector does this model use?
A MIL-C-5015 connection interface, providing a rugged, weather-resistant connection suitable for outdoor installations.