What is the Bently Nevada 190501-00-00-04?

It is a low-frequency Velomitor CT piezo-velocity transducer designed to measure casing vibration on cooling-tower and air-cooled heat-exchanger fan assemblies operating at or above 90 rpm.

What do the suffix codes 00-00-04 mean?

The first 00 specifies no mounting stud, the second 00 specifies the MIL-C-5015 connection interface, and 04 is the agency-approval option. Verify the approval markings on the actual nameplate.

What machines use the 190501 Velomitor CT?

Typical applications are cooling-tower fans and air-cooled heat-exchanger fan assemblies, including vibration generated by the fan rotor, motor and speed reducer. The mounting point must transmit representative casing vibration.

What are the main measurement specifications?

Official values include 3.94 mV/mm/s sensitivity, 3.0–900 Hz ±1 dB or 1.5 Hz–1 kHz ±3 dB frequency response, and a 63.5 mm/s peak velocity range.

Is 190501-00-00-04 discontinued?

The current Baker Hughes datasheet is Rev. AF dated 2026 and does not publish a discontinuation notice, discontinuation date or official successor for this configuration.

Can the Bently Nevada 330500 completely replace it?

No automatic complete replacement should be assumed. Although the 330500 has the same nominal sensitivity, its frequency range differs and it may not provide equivalent low-speed cooling-tower response.

What must be checked before ordering a replacement?

Confirm the full suffix, sensitivity, frequency range, bias voltage, connector, cable length, mounting hardware, monitor input compatibility, temperature limits and hazardous-area approval before substitution.

190501-00-00-04

Name: 190501-00-00-04
Brand: Bently Nevada
SKU: 190501-00-00-04

Velomitor CT Low-Frequency Velocity Sensor

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

Bently Nevada 190501-00-00-04 Velomitor CT Transducer

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Technical specifications for 190501-00-00-04

Manufacturer:

Bently Nevada
Product Category:

Machinery Monitoring Systems
Spare Part Number:

190501-00-00-04
Estimated shipping dimensions:

8.3x3.5x3.2cm
Weight:

0.3 kg
Tariff Code:

8537101101
Counliy of origin:

United States
Product Type:

Low-frequency piezo-velocity transducer
Mounting Hardware:

Option 00: no stud
Connection Interface:

Option 00: MIL-C-5015
Agency Approval:

Option 04; verify exact certification on nameplate
Sensitivity:

3.94 mV/mm/s (100 mV/in/s) ±5%
Frequency Response:

3.0–900 Hz ±1.0 dB; 1.5 Hz–1.0 kHz ±3.0 dB
Velocity Range:

63.5 mm/s peak (2.5 in/s peak)
Amplitude Linearity:

±2% to 63.5 mm/s peak
Output Bias Voltage:

10.1 Vdc ±1.0 Vdc
Dynamic Output Impedance:

<400 Ω typical
Maximum Cable Length:

305 m (1,000 ft) with specified cable
Operating Temperature:

-40°C to +85°C
Storage Temperature:

-40°C to +100°C
Shock Limit:

5000 g peak maximum
Humidity Limit:

100% condensing, non-submerged
Case Material:

316L stainless steel
Connector:

2-pin 316L stainless steel MIL-C-5015, top
Mounting Torque:

4.5 N·m ±0.6 N·m
Mounting Orientation:

Any orientation

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Information

Overview Common Applications Product Precautions

The Bently Nevada 190501-00-00-04 is a Velomitor CT low-frequency piezo-velocity transducer designed for casing vibration measurement on cooling-tower and air-cooled heat-exchanger fan assemblies operating at or above 90 rpm. It measures fan, motor and speed-reducer vibration while providing 3.94 mV/mm/s (100 mV/in/s) sensitivity.

Configuration 190501-00-00-04 means no mounting stud, MIL-C-5015 connection interface and agency-approval option 04. The transducer uses a 316L stainless-steel case, operates from -40°C to +85°C and supports up to 305 m (1,000 ft) of specified interconnect cable.

Product status: Baker Hughes publishes datasheet 141636 Rev. AF dated 2026. The official source does not state that this configuration is discontinued and does not identify an official successor.

Cooling towers: casing vibration monitoring on low-speed fan assemblies operating at or above 90 rpm.

Air-cooled heat exchangers: measurement of vibration generated by the fan rotor, drive motor and speed reducer.

Machinery protection and condition monitoring: velocity input for compatible Bently Nevada monitors when the selected mounting location transmits representative rotor vibration to the casing.

Typical faults monitored include changes associated with rotor unbalance and misalignment. Application suitability and alarm settings require machinery-specific engineering review.

Install the transducer on a properly prepared bearing housing or machine casing. Poor mounting can reduce amplitude and frequency response or create signals that do not represent actual machine vibration.

Suffix 00 includes no mounting stud; select the correct stud or adapter for the machine interface. Apply the published mounting torque of 4.5 N·m ±0.6 N·m.

Verify option 04 hazardous-area certification on the product nameplate and follow the applicable installation drawing and entity parameters.

Use the specified cable and confirm total cable length, monitor input compatibility, grounding, connector integrity and environmental limits before commissioning.

Do not substitute a 330500 or another sensor solely because sensitivity is similar; frequency response and application behavior must also match.

Alternative Names

190501 00 00 04 190501-00-00-04 Velomitor CT Bently Nevada 190501 CT

Technical notes

Bently Nevada datasheet 141636 Rev. AF (2026) lists the 190501 Velomitor CT as an active documented product; no official discontinuation date or successor is stated. The 190501-00-00-04 configuration uses mounting option 00 (no stud), connection option 00 (MIL-C-5015 interface), and agency approval option 04. Do not treat another velocity sensor as a complete replacement without verifying sensitivity, frequency response, output bias, dynamic impedance, connector and cable, mounting interface, monitor compatibility, operating environment, and hazardous-area approval. The 330500 shares 100 mV/in/s sensitivity but has a different frequency range, so it is not automatically a drop-in substitute for low-speed cooling-tower service.

FAQ View All FAQ

What is the Bently Nevada 190501-00-00-04?

It is a low-frequency Velomitor CT piezo-velocity transducer designed to measure casing vibration on cooling-tower and air-cooled heat-exchanger fan assemblies operating at or above 90 rpm.
What do the suffix codes 00-00-04 mean?

The first 00 specifies no mounting stud, the second 00 specifies the MIL-C-5015 connection interface, and 04 is the agency-approval option. Verify the approval markings on the actual nameplate.
What machines use the 190501 Velomitor CT?

Typical applications are cooling-tower fans and air-cooled heat-exchanger fan assemblies, including vibration generated by the fan rotor, motor and speed reducer. The mounting point must transmit representative casing vibration.
What are the main measurement specifications?

Official values include 3.94 mV/mm/s sensitivity, 3.0–900 Hz ±1 dB or 1.5 Hz–1 kHz ±3 dB frequency response, and a 63.5 mm/s peak velocity range.

Is 190501-00-00-04 discontinued?

The current Baker Hughes datasheet is Rev. AF dated 2026 and does not publish a discontinuation notice, discontinuation date or official successor for this configuration.
Can the Bently Nevada 330500 completely replace it?

No automatic complete replacement should be assumed. Although the 330500 has the same nominal sensitivity, its frequency range differs and it may not provide equivalent low-speed cooling-tower response.
What must be checked before ordering a replacement?

Confirm the full suffix, sensitivity, frequency range, bias voltage, connector, cable length, mounting hardware, monitor input compatibility, temperature limits and hazardous-area approval before substitution.

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