Description
Overview
The Bently Nevada 330500‑00‑02 Velomitor sensor is a piezo‑velocity transducer designed to measure absolute vibration on machine casings, bearing housings, and structural components. Its solid‑state internal electronics eliminate moving parts, providing long‑term stability and dependable performance in industrial environments where continuous monitoring is required.
Design and Operating Principles
This sensor integrates a piezoelectric accelerometer with internal signal conditioning electronics to produce a velocity‑proportional output. Because the design contains no mechanical elements, the 330500‑00‑02 can be mounted in any orientation—horizontal, vertical, or angled—without affecting measurement accuracy.
The sensor is intended for installation directly on the machine casing, where it can capture vibration energy transmitted from the rotor. Proper mounting ensures accurate amplitude and frequency response, supporting effective detection of unbalance, misalignment, looseness, and other common machinery faults.
Technical Specifications
| Parameter |
Specification |
| Model |
330500‑00‑02 |
| Sensor Type |
Velomitor Piezo‑Velocity Sensor |
| Measurement Type |
Absolute casing vibration |
| Output |
Velocity‑proportional signal |
| Orientation |
Any (no moving parts) |
| Weight |
0.14 kg |
| Dimensions |
6.7 × 6.7 × 2.4 cm |
| HS Code |
8537101190 |
| Origin |
USA |
| Minimum Order |
1 unit |
| Product Status |
Active |
| System |
TSI |
Performance Characteristics
The 330500‑00‑02 is engineered to maintain stable performance across a wide range of operating conditions. Its solid‑state construction prevents mechanical wear, ensuring consistent sensitivity and long service life. When installed correctly, the sensor provides accurate vibration signatures essential for machinery protection and predictive maintenance programs.
Incorrect mounting can reduce frequency response or introduce false vibration readings, so proper installation practices are critical. Bently Nevada provides engineering guidance to help determine optimal mounting locations for specific machine types.
Application Scenarios
-
Casing vibration monitoring on pumps, compressors, turbines, and motors
-
Detection of unbalance, misalignment, and mechanical looseness
-
Machinery protection systems requiring velocity‑based measurements
-
Installations requiring orientation‑independent sensors
-
Predictive maintenance programs in power generation and process industries
FAQ
Q: Why use a piezo‑velocity sensor instead of a traditional velocity pickup The solid‑state design eliminates moving parts, improving durability and reducing long‑term drift.
Q: Where should this sensor be mounted for best results Directly on the bearing housing or machine casing to capture vibration transmitted from the rotor.
Q: Does mounting orientation affect performance No. The sensor can be installed in any orientation without impacting measurement accuracy.
