Bently Nevada 330500-02-00 Velomitor Piezo-Velocity Sensor

Product Description

The Bently Nevada 330500-02-00 is a robust Velomitor piezo-velocity sensor designed for precise vibration measurement on rotating machinery, pumps, compressors, and motors. Unlike moving-coil velocity transducers, the 330500 integrates solid-state piezoelectric technology with internal signal conditioning, delivering low-noise voltage output proportional to vibration velocity. Its rugged design ensures high reliability in harsh industrial environments.

Key Features

Advanced Piezoelectric Sensing
The sensor uses a shear-mode ceramic piezoelectric element that converts mechanical vibration into an electrical signal internally processed to represent velocity. No moving parts ensure consistent performance regardless of mounting orientation.

High Accuracy and Wide Frequency Range
With sensitivity of approximately 3.94 mV/mm/s (100 mV/in/s) ±5%, the sensor measures vibrations from 4.5 Hz to 5 kHz, capturing both low-frequency “rumble” and high-frequency components without mechanical wear.

Durable Construction
The 316L stainless steel case is hermetically sealed and corrosion-resistant. It can withstand operating temperatures from -55°C to +121°C and survive shock levels up to 5,000 g.

Mounting and Connectivity
Mounting is via 1/4-28 UNF thread (-02 option) or optional M8 x 1 adapter. Electrical connection is through a 2-pin MIL-C-5015 hermetically sealed connector. Case is electrically isolated to prevent ground loops. Maximum recommended mounting torque is 46 kg·cm (40 in-lb).

Technical Specifications

Applications

The 330500-02-00 is suitable for:

• Machinery vibration monitoring on pumps, motors, and compressors

• Protection and condition monitoring systems

• Capturing low-frequency structural vibration and high-frequency mechanical faults

• Industrial environments where robust, solid-state vibration measurement is critical

FAQ

Q: Can the sensor be mounted in any orientation?
A: Yes. Its solid-state design allows vertical, horizontal, or angled mounting without affecting performance.

Q: What is the operating temperature range?
A: -55°C to +121°C (-67°F to +250°F).

Q: How does it connect electrically?
A: Through a 2-pin MIL-C-5015 hermetically sealed connector.

Q: Is the sensor resistant to corrosion?
A: Yes. The 316L stainless steel case is hermetically sealed and highly resistant to corrosion.

Q: What vibration levels can it measure?
A: Up to 1,270 mm/s (50 in/s) peak velocity.