3300/50-01-01-00-00 Bently Nevada Monitor

3300/50-01-01-00-00 Bently Nevada Monitor Core Analysis
I. Product Positioning and Functions
3300/50-01-01-00-00 is a rotational speed monitoring module in the Bently Nevada 3300 series, and it is a core component of the mechanical protection system. Its core functions include:
Speed signal acquisition
The input signal is received through proximity probes or magnetic pickups and converted into digital key phase signals, indicating the moment when the key phase marks on the shaft align with the sensor.
Supports the creation of signals for each revolution or multiple events, suitable for low speeds (such as above 200 rpm) or high-precision timing measurements.
Multi-signal support
Standard configuration: The 3500 mechanical protection system can accept up to 4 key phase signal inputs.
Paired configuration: Up to 8 key phase signal inputs can be accepted through two consecutive monitoring positions (such as upper/lower slots).
Redundant design
In triple module redundancy (TMR) applications, two key phase modules must operate in parallel to provide primary and auxiliary key phase signals to other modules in the rack.

Technical Specifications
Input Signal Range
Non-isolated I/O Module: +0.8 V to 21.0 V.
Isolated I/O Module: +5 V to -11 V.
Signals outside the range will be limited by the module’s internal settings.
Speed Requirements
For passive magnetic pickups (3.3 Hz), the shaft speed must exceed 200 rpm.
Output Characteristics
Two buffered key signal outputs are provided (front of the rack via coaxial connector, rear via European connector).
The maximum buffered output impedance is 504 Ω.
Environmental Adaptability
Storage Temperature: -40°C to +85°C.
Humidity: 95% (no condensation).
Physical Dimensions
Size: 119.9 mm × 24.4 mm × 256.5 mm.

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Bently Nevadabrief introduction

Bently Nevada has a legacy of machinery protection and condition monitoring. Bently Nevada’s product line is capable of monitoring for the protection and continuous monitoring of your varied machinery assets. The Bently Nevada line has numerous world-class instruments designed to measure and collect machine information as a part of comprehensive predictive maintenance program for both field diagnostics and test stand use.