The Bently Nevada 3300/25 Dual Accelerometer Monitor is a high-performance, rack-mounted module engineered for the 3300 Series machinery protection system. This unit is designed to process and monitor casing vibration signals from two independent accelerometer inputs. By continuously analyzing vibration levels and comparing them against user-defined alarm setpoints, the monitor provides essential protection for critical rotating assets such as industrial turbines, compressors, and centrifugal pumps.
Features
Dual-channel configuration for independent monitoring of two accelerometer inputs.
Integrated Alert and Danger alarm setpoint logic with relay outputs.
Proportional 4–20 mA output signals for external system integration.
On-board LED status indicators for monitoring OK, Bypass, Alert, and Danger operational states.
Applications
This monitor is specifically intended for use within the Bently Nevada 3300 rack system to provide reliable casing vibration protection. It is widely utilized in oil and gas, power generation, and petrochemical facilities to detect mechanical faults such as bearing wear, misalignment, or imbalance in rotating machinery.
Technical Specifications
Model
3300/25-01-03-03-00-00-01-00
Brand
Bently Nevada
Series
3300
Product Type
Dual Accelerometer Monitor
Inputs
2 Independent Accelerometer Channels
Outputs
4–20 mA, Relay (Alert/Danger), Dynamic Signal
Operating Temperature
-30 degC to +65 degC
Power Consumption
Approx. 6 W
Weight
0.45 kg
Installation Guidelines
Ensure the 3300 rack is powered down before inserting or removing the module to prevent electrical damage.
Verify that all signal wiring is properly shielded and grounded to minimize electromagnetic interference (EMI) in high-noise industrial environments.
Confirm that the module is firmly seated within the rack slot to ensure reliable backplane communication.
Check the configuration of all jumpers and switches to match the specific transducer requirements and measurement ranges before commissioning.
FAQ
What does the 3300/25-01-03-03-00-00-01-00 code signify? This specific order code defines the factory configuration, including the dual-channel accelerometer input type, standard relay outputs, and the specific agency approval rating for this unit.
Can this module be used for proximity probe inputs? No, the 3300/25 is specifically designed for accelerometer inputs; other modules in the 3300 series are required for proximity probe or velocity sensor applications.
