Bently Nevada 330500-07-00 Velomitor Piezo-velocity Sensor

Description

The 330500-07-00 is a specialized Velomitor Piezo-velocity Sensor designed for measuring absolute casing vibration on industrial machinery. This configuration includes the 3/8-16 UNC mounting thread adapter (Option 07) and comes with no hazardous area agency approvals (Option 00). As a solid-state piezoelectric accelerometer with integrated electronics, this sensor provides a velocity-proportional output without mechanical moving parts, ensuring consistent performance in challenging environments where traditional velocity transducers might suffer from mechanical wear.

Engineered for high reliability in rotating machinery protection, the 330500 system detects casing vibration caused by common malfunctions such as rotor unbalance or misalignment. It is compatible with a wide range of Bently Nevada monitoring systems and can be mounted in any orientation. The sensor is constructed from 316L stainless steel and is hermetically sealed to withstand harsh industrial conditions while maintaining signal integrity for monitoring and protection applications.

Features

• Mounting Option 07: Equipped with a 3/8-16 UNC mounting thread adapter for secure installation on bearing housings or machine casings.
• Agency Approval 00: Standard configuration with no specific hazardous area certifications.
• Solid-State Design: Contains no moving parts, eliminating mechanical degradation and enabling versatile mounting orientations.
• Measurement Accuracy: Provides 100 mV/in/s sensitivity with a frequency response range of 4.5 Hz to 5 kHz.
• Robust Construction: Housed in a hermetically sealed 316L stainless steel body to protect against environmental contaminants and mechanical shock (up to 5,000 g).
• Operational Versatility: Suitable for a wide operating temperature range from -55 degC to 121 degC.

Applications

• Absolute (casing) vibration measurement on rotating machinery.
• Monitoring bearing housings for structural vibration.
• Detection of rotor-related malfunctions such as unbalance and misalignment.
• Industrial environments requiring high-frequency response and durability.

Ordering Information

Technical Specifications

Installation Guidelines

• Install the sensor directly onto the bearing housing or machine casing for effective vibration transmission. Improper mounting may attenuate the signal or introduce false readings.
• Ensure the mating surface is flat and clean before tightening to the specified mounting torque.
• Utilize appropriate twisted, shielded cables to minimize electrical interference and noise, especially when integrating the output for displacement measurement.
• The sensor is case-isolated; ensure grounding is handled according to the specific facility wiring requirements.