Product Introduction
3300/03 System Monitor is the core monitoring module of the Bently Nevada 3300 rack system, used for centralized management of the status, alarm logic, and power monitoring of each monitoring unit within the rack. This module can detect multiple power rails voltages, manage the OK status relay outputs of the monitoring modules within the rack, and provide a system startup suppression function to ensure the stable operation of the monitoring system during power-on or power fluctuations.

Technical Specifications
|
Manufacture |
BENTLY NEVADA |
|
Model |
3300/03 |
|
Part Number |
PWA87890-01 |
|
Description |
System Monitor |
|
Origin |
USA |
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Dimension |
37*30*7cm |
|
Weight |
1.0kg |
Key Features
System-level monitoring coordination function
3300/03 System Monitor is responsible for coordinating the centralized status of various monitoring modules within the rack system. It manages the monitoring of system power supply voltage, alarm output, and relay drive, and can serve as the "central hub" of the monitoring system.
Power supply initialization alarm suppression
The module has the Power-up Inhibit function, which can temporarily suppress false alarms during the system power-on stage (approximately 2 seconds). This feature helps to prevent unnecessary fault alarms from being triggered in unstable power supply or transient conditions.
OK status relay output
When the system detects any abnormality in any monitoring module or power supply issue, the OK relay of 3300/03 System Monitor will change its state, which is used to drive external alarms or interlock devices, thereby enhancing the overall system's response capability.
Alarm threshold and system configuration support
The monitoring module of this system can work in conjunction with other monitoring units within the rack to achieve functions such as adjustment of alarm thresholds and alarm confirmation, thereby making the alarm logic of the entire 3300 status monitoring system more organized.
Support for communication and data interface options
In some configurations, the 3300/03 System Monitor can enhance the data interface capabilities of the system. By selecting different data interface options, it can exchange information with upper-level control systems (such as PLC/DCS), enabling remote monitoring and diagnostic functions.
Suitable for standard rack integration
3300/03 System Monitor is designed to be inserted into the 3300 series rack and can be used in combination with other modules such as power supply, monitoring, and data interfaces, facilitating the construction of a complete mechanical condition monitoring and protection system architecture.
Products Benefits
1.Centralized monitoring management: As the core system monitoring unit of the 3300 series rack, the 3300/03 System Monitor provides unified power status monitoring and system status feedback, which is conducive to more centralized and clear overall system management.
2.Reduce the risk of false alarms: The built-in Power-up Inhibit function can effectively suppress false alarms during the system startup phase, preventing accidental triggering during the boot process.
3.Integrated alarm logic output: The OK status relay realizes the centralized reflection of the detection results of each module inside the rack, and can be used to trigger more advanced control or protection logic.
4.Enhance system scalability: By configuring different data interface options, it is possible to integrate with upper-level systems such as PLCs and DCSs, thereby improving the system's visualization capabilities.
5.Long-term stable operation: The module design complies with the hardware standards of the mechanical monitoring system and can operate continuously in industrial environments, meeting the requirements for long-term status monitoring.
FAQ
Q:How does the System Monitor module reduce false alarms?
A:The built-in Power-up Inhibit function will temporarily suppress the alarm output when the system is powered on or when the supply voltage drops below the specified level, preventing invalid alarms caused by transient voltage fluctuations.
Q: Does this module support remote communication?
A:The 3300/03 PWA87890-01 System Monitor with certain configurations supports data interface options, enabling communication with the upper-level system for remote status monitoring and diagnosis.
Q: In which mechanical condition monitoring systems is this module applicable?
A:This is applicable to mechanical monitoring systems that require centralized monitoring of multiple status channels (such as vibration, displacement, temperature, etc.). Typical examples include continuous operation monitoring architectures for turbines, pumps, compressors, and power generation units.













