Product Introduction
The 3300/55 Monitor is a universal vibration monitoring module in the Bently Nevada 3300 series. It is mainly used for continuous monitoring of the vibration levels of rotating machinery. This module is usually used in conjunction with speed sensors or acceleration sensors to measure the overall vibration status of the bearing housing or machine casing.

Technical Specifications
|
Manufacture |
BENTLY NEVADA |
|
Model |
3300/55 |
|
Part Number |
3300/55-04-04-18-18-00-00-07-00 |
|
Description |
Vibration Monitor |
|
Origin |
USA |
|
Dimension |
16*16*12cm |
|
Weight |
1.0kg |
Product Features
1️⃣ Continuous monitoring design for overall vibration
The 3300/55 Vibration Monitor focuses on the overall vibration monitoring of the bearing housing and the equipment casing. It employs mature vibration measurement and signal processing logic to continuously collect and accurately calculate vibration amplitudes generated during mechanical operation. This design focuses more on vibration changes at the equipment structural level, enabling the 3300/55 Vibration Monitor to truly reflect the long-term trend of the equipment's operating status, rather than instantaneous or occasional fluctuations.
2️⃣ Support multiple types of vibration sensor inputs
The 3300/55 Vibration Monitor can be used in conjunction with speed sensors or acceleration sensors. By processing signals from different types of sensors, it enables vibration monitoring for various speed ranges and different types of structural equipment. Engineers can flexibly choose the type of sensor based on the characteristics of the equipment, ensuring that the 3300/55 Vibration Monitor maintains good adaptability in various industrial applications.
3️⃣ Stable and reliable vibration signal processing capability
The 3300/55 Vibration Monitor is equipped with a stable analog and digital signal processing circuit inside, which continuously calculates and outputs the vibration signals. The processing method focuses on stability and repeatability, ensuring the consistency of monitoring data under long-term operation conditions. It is suitable for use in continuous online vibration monitoring systems.
4️⃣ Industrial-grade modular structure design
The 3300/55 Vibration Monitor adopts a modular plug-in structure and can be directly installed in the Bently Nevada 3300 series chassis. The module is designed in terms of both structure and electrical engineering to fully meet the requirements of industrial environments, featuring excellent anti-interference capabilities and suitable for long-term operation in industrial environments with high vibration and strong electromagnetic interference.
Products Advantages
1️⃣ The monitoring logic is clear, and the system configuration is simple.
The 3300/55 Vibration Monitor is specifically designed for monitoring vibration amplitude. It does not involve complex multi-signal fusion or advanced rotor dynamics calculations, making the system configuration and parameter setting more intuitive. This clear monitoring logic is beneficial for engineering implementation and later maintenance, reducing the complexity of system debugging.
2️⃣ Applicable to most general rotating equipment
The 3300/55 Vibration Monitor has strong adaptability to different equipment types and can be widely used for the basic vibration monitoring of rotating equipment such as pumps, fans, motors, and general industrial compressors. It can achieve reliable condition monitoring without increasing the complexity of the system.
3️⃣ It is beneficial for long-term trend analysis and operational status judgment.
The 3300/55 Vibration Monitor provides continuous and stable vibration monitoring data, suitable for long-term trend recording and analysis of operational status changes. By continuously observing the changes in vibration levels, it can assist in determining the evolution process of the equipment's operational status.
4️⃣ Easy to integrate into the existing 3300 series monitoring system
The 3300/55 Vibration Monitor is structurally and interface-wise consistent with the other monitoring and alarm modules of the Bently Nevada 3300 series. It can be flexibly configured within the same chassis. This advantage enables the system to be upgraded or expanded later without the need to adjust the overall architecture.
5️⃣ The engineering application is mature,e and the operational reliability is high.
The 3300/55 Vibration Monitor has a long-term application history in industrial settings. Its design and application methods have been verified in numerous projects and are suitable for continuous operation equipment with high requirements for system stability and reliability.
FAQ
Q1: Is the 3300/55 Monitor used for mechanical protection or for condition monitoring?
A:The 3300/55 Monitor is mainly used for status monitoring and trend analysis. It does not directly trigger tripping or protection actions on its own. Its data can be used as reference input for the mechanical protection system.
Q2: Is the 3300/55 Monitor suitable for low-speed devices?
A:In low-speed equipment, the applicability of the 3300/55 Monitor depends on the type of sensor selected. By making an appropriate choice of sensors, the vibration monitoring requirements of some low-speed equipment can be met.
Q3: Does the 3300/55 Monitor support multi-point vibration comparison?
A:The 3300/55 Monitor is a single-channel module. The multi-point vibration comparison is usually achieved by configuring multiple 3300/55 Monitors in the system.
Q4: Is the 3300/55 Monitor effective during the start-up and shutdown process of the equipment?
A: The 3300/55 Monitor can continuously collect vibration data during the start-up and shutdown processes of the equipment. However, the vibration characteristics during the start-up and shutdown phases should be analyzed in conjunction with the operating conditions.
Q5: Is the 3300/55 Monitor suitable for upgrading old equipment?
A:D ue to its simple structure and good system compatibility, the 3300/55 Monitor is often used in renovation projects where the basic vibration monitoring function needs to be added to old equipment.
| Spare Relay Module Assemblies | |
| 84137-01(02) | Seismic No Relays |
| 84143-01(02) | Seismic Dual Epoxy Relays |
| 84149-01(02) | Seismic Dual Hermetic Relays |
| 84154-01(02) | Seismic Quad Relays |
| 88844-03(06) | Seis No Relays, Int Barriers |
| 88844-02(05) | Seis Dual Epoxy Relays, Int Barriers |
| 88844-01(04) | Seis Dual Hermetic Relays, Int Bar |
| 130731-01(02) | Velomitor No Relays |
| 130730-01(02) | Velomitor Dual Epoxy Relays |
| 130733-01(02) | Velomitor Dual Hermetic Relays |
| 130732-01(02) | Velomitor Quad Relays |
| 130735-01(02) | HTVS No Relays |
| 130734-01(02) | HTVS Dual Epoxy Relays |
| 130737-01(02) | HTVS Dual Hermetic Relays |
| 130736-01(02) | HTVS Quad Relays |













