330500-01-04 Bently Nevada Velomitor Datasheet & Technical Manual

Bently Nevada 330500-01-04 Velomitor Piezo-Velocity Sensor

Bently Nevada 330500-01-04 Velomitor Piezo-Velocity Sensor

Availability: 10 left in stock

Configured for seismic vibration monitoring in rotating machinery, the Bently Nevada 330500-01-04 (330500 Velomitor Sensor) provides direct physical velocity-to-voltage signal...

SKU: 330500-01-04

Manufacturer: Bently Nevada
Product No.: 330500-01-04
Product Type: Vibration Sensors
Product Origin: USA
Payment:T/T, Western Union
Weight: 142g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Configured for seismic vibration monitoring in rotating machinery, the Bently Nevada 330500-01-04 (330500 Velomitor Sensor) provides direct physical velocity-to-voltage signal execution.

Hardware Specifications

Parameter	Specification
Model	330500-01-04
Brand	Bently Nevada
Origin	USA
Weight	0.142 kg
Dimensions	Standard Velomitor cylindrical geometry
Operating Temp	-55 deg C to +121 deg C
Power Consumption	2 mA to 10 mA constant current
Sensitivity	3.94 mV/mm/s (100 mV/in/s)

Rotor Dynamics and Cross-Talk Suppression

The 330500-01-04 utilizes a piezoelectric seismic sensing element coupled with internal signal conditioning circuitry. This architecture provides an output proportional to the velocity of the machine casing. For accurate rotor dynamics interpretation, the transducer output must be evaluated against machine-specific vibration limits. To maintain measurement fidelity, cross-talk suppression is maintained by ensuring the transducer is mounted on a rigid, metallic load-bearing surface. This prevents the sensor from reacting to extraneous structural resonances or electromagnetic coupling from nearby high-frequency machinery components, ensuring that the processed velocity signal accurately represents the machine's seismic state.

Frequently Asked Questions

Q: Can this Velomitor be used in hazardous area applications?

A: Yes. The 04 suffix indicates that the unit carries multiple agency approvals (CSA, ATEX, Brazil). Installations in hazardous areas must conform to the specific control drawings and safety protocols associated with these certifications.

Q: Does the Velomitor require a specific power supply?

A: The sensor is an active transducer requiring a constant current source (2 mA to 10 mA) provided by the host monitoring system or a dedicated signal conditioner.

Field Installation Guidelines

Ensure the mounting surface is flat, clean, and rigid. Apply a thin layer of coupling compound to the 1/2 - 20 UNF stud base to improve high-frequency transmission.
Torque the sensor to the mounting surface according to standard mechanical assembly practices for the 1/2 - 20 UNF thread size to ensure a rigid connection.
Route the signal cable through grounded metallic conduit to protect against physical damage and electromagnetic interference.
Verify the shield continuity at the terminal block; the shield must be grounded only at the monitor end to prevent the creation of ground loops.
Prior to system energization, measure the bias voltage at the sensor input terminals to verify correct current loop operation and transducer health.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.