Configured for vibration acceleration measurement in machinery monitoring systems, the Bently Nevada 330425-02-00 (330425 Acceleration Transducer) provides direct electrical conversion of mechanical vibration into a low-level analog output signal for condition monitoring and diagnostic acquisition.
Suffix Breakdown & Model Matrix
The available ordering information provided for this model includes the following configured options.
Option
Specification
Full Model
330425-02-00
Base Model
330425
Product Type
Acceleration Transducer
Mounting Option
02 - M8 x 1 integral stud
Agency Approval
00 - None
Hardware Specifications
Parameter
Specification
Model
330425-02-00
Brand
Bently Nevada
Product Type
Acceleration Transducer
Sensor Type
Accelerometer
Origin
USA
Shipping Location
Xiamen, China
Tariff Code
8537101190
Weight
0.08 kg
Dimensions
6.3 x 2.4 x 2.3 cm
Operating Temp
Not specified
Power Consumption
Self-generating sensor, external power not specified
Sensitivity
2.5 mV/m/s2 (25 mV/g) +/- 5%
Amplitude Linearity
+/- 1% to 735 m/s2 (75 g) peak
Mounting Thread
M8 x 1 integral stud
Agency Approval
None
Rotor Dynamics Signal Integrity
The 330425 acceleration transducer is intended for dynamic vibration measurement within Bently Nevada machinery monitoring architectures. Mechanical mounting rigidity directly affects frequency response and measured vibration amplitude. During commissioning, vibration measurements should be correlated with rotor dynamic behavior using properly configured monitoring channels.
Where the transducer is installed alongside eddy-current proximity probes, gap voltage validation is normally performed independently. Typical proximity probe target bias verification remains approximately -10 VDC, while the acceleration transducer measures dynamic casing vibration rather than shaft position. Proper cable routing and shield termination help reduce cross-talk between vibration measurement channels.
Frequently Asked Questions
Q: Does the 330425-02-00 support hot replacement while connected to a monitoring channel?
A: Sensor replacement should be performed with the associated monitoring channel de-energized or isolated according to the monitoring system maintenance procedure to prevent unintended measurement disturbances.
Q: Can the sensor cable be routed together with motor power cables?
A: No. Signal cables should be separated from high-voltage and variable-frequency drive power wiring to minimize electromagnetic interference and preserve vibration signal quality.
Q: Does this transducer require external power?
A: The available product information identifies the device as an accelerometer. External power requirements depend on the receiving monitoring equipment and are not specified in the supplied technical data.
Field Installation Guidelines
Verify that the mounting surface is clean, flat, and mechanically rigid before installation.
Install the sensor using the specified M8 x 1 integral stud and apply the manufacturer's recommended tightening method where available.
Route sensor cables separately from power conductors and variable-frequency drive output wiring.
Connect cable shielding according to the monitoring system grounding practice to reduce electrical noise.
Avoid excessive cable bending, tensile loading, and unsupported cable spans near the sensor body.
Confirm channel response after installation by performing baseline vibration verification within the monitoring system.
