Configured for vibration velocity measurement in Bently Nevada machinery monitoring systems, the Bently Nevada 330500-01-05 (330500 Velomitor Piezo-velocity Sensor) provides direct electrical execution. The sensor converts mechanical vibration into a proportional voltage output for condition monitoring, vibration analysis, and machine protection functions.
Suffix Breakdown & Model Matrix
The supplied documentation identifies 330500-01-05 as a complete ordering model. No official suffix decoding or ordering matrix is provided in the available technical data; therefore, no suffix interpretation is included.
Hardware Specifications
Parameter
Specification
Model
330500-01-05
Brand
Bently Nevada
Product Type
Velomitor Piezo-velocity Sensor
Manufacturer
Bently Nevada
Origin
USA
Shipment Location
Xiamen, China
Weight
0.15 kg
Dimensions
7.6 x 2.4 x 2.4 cm
Case Material
316L stainless steel
Mounting Thread
1/2-20 UNF
Mounting Torque
32 - 46 kg cm (24 - 40 in-lb) maximum
Sensitivity
3.94 mV/mm/s (100 mV/in/s) +/- 5%
Velocity Range
1270 mm/s (50 in/s) peak
Transverse Sensitivity
Less than 5% of sensitivity
Output Bias Voltage
-12 +/- 3.0 VDC referenced to Pin A over temperature
Dynamic Output Impedance
Less than 2400 Ohm
Operating Temp
Not specified
Power Consumption
Not specified
Tariff Code
8537101190
Gap Voltage Validation and Mechanical Monitoring
Within Bently Nevada machinery protection systems, sensor verification commonly includes electrical validation before vibration analysis is performed. Although the 330500-01-05 is a piezo-velocity sensor rather than an eddy-current proximity probe, commissioning procedures are typically coordinated with shaft displacement channels where gap voltage measurements are checked against nominal targets, commonly near -10 VDC for proximity probe circuits. Independent verification of each measurement channel helps reduce commissioning errors and simplifies diagnostic comparison across the monitoring system.
Frequently Asked Questions
Q: Does the 330500-01-05 support hot-swapping during machine operation? A: The available documentation does not specify hot-swap capability. Sensor replacement should follow the shutdown and maintenance procedures defined for the connected monitoring system.
Q: Is shielded cable recommended for signal wiring? A: Yes. Shielded instrumentation cable is standard practice for vibration sensor installation to reduce electromagnetic interference. Shield grounding should follow the requirements of the connected monitoring equipment.
Q: Can the sensor be mounted directly to machine housings? A: Yes, provided the mounting thread, mounting surface, and installation torque conform to the specified mechanical requirements. Proper mounting stiffness is necessary to obtain representative vibration measurements.
Field Installation Guidelines
Verify that the mounting point matches the 1/2-20 UNF threaded connection before installation.
Apply the specified mounting torque of 32 - 46 kg cm without exceeding the maximum value.
Ensure the mounting surface is clean, flat, and free of paint or debris to maintain mechanical coupling.
Route sensor cables separately from high-voltage or variable-frequency drive power cables to minimize electrical noise.
Maintain cable shielding continuity and terminate the shield according to the monitoring system grounding practice.
Confirm connector pin assignments before energizing the monitoring channel.
After installation, verify sensor output and channel status using the associated vibration monitoring equipment before returning the machine to service.
