Overview
Specifications
| ParameterSpecification | |
| Model | 330101-00-12-20-02-05 |
| Brand | Bently Nevada |
| Origin | USA |
| Product Type | Proximity Transducers |
| Series | 3300 XL 8 mm |
| Probe Diameter | 8 mm |
| Measurement Principle | Eddy-current non-contact sensing |
| Functional Role | Shaft vibration, axial position, and displacement monitoring |
| System Configuration | Probe used with matched extension cable and Proximitor electronics |
| Target Requirement | Electrically conductive metallic surface |
| Output Behavior | Electrical signal proportional to target displacement |
| Mounting Method | Threaded mechanical installation |
| Weight | Not explicitly specified |
| Dimensions | Refer to manufacturer mechanical configuration data |
| Operating Temp | Refer to official Bently Nevada environmental specification |
| Power Consumption | Determined by associated signal conditioning hardware |
Eddy-Current Probe Scaling and Gap Voltage Validation
The 3300 XL 8 mm transducer system operates as a calibrated probe chain in which probe, extension cable, and driver electronics are electrically matched. Eddy-current probe scaling depends on preservation of the specified component combination.
Commissioning procedures commonly include gap voltage validation to confirm probe-to-target spacing and conductive target response. Bently Nevada proximity systems are typically verified against expected negative DC bias behavior, including operating regions near -10 VDC target conditions. Deviations may indicate target metallurgy variation, incorrect cable configuration, or mechanical alignment error.
Frequently Asked Questions
Q: Can this probe operate without compatible Proximitor electronics?
A: No. The sensing element is intended for use within a complete transducer system that includes matched signal conditioning hardware.
Q: Does the model support field cable shortening or connector replacement?
A: Cable modification practices can alter impedance and calibrated response. Follow manufacturer procedures before performing any conductor, connector, or length changes.
Q: Is hot replacement permitted while the machine remains in operation?
A: Replacement requirements depend on machine access conditions, monitoring hardware architecture, and site maintenance procedures. Signal validation is normally required after reinstallation.
Field Installation Guidelines
Mount the probe with rigid mechanical support and controlled alignment to the target surface. Maintain cable separation from high-current power conductors, switching devices, and variable-frequency drive output wiring.
Terminate shields according to the defined grounding philosophy of the monitoring installation. Avoid uncontrolled multi-point shield bonding. After installation, verify connector integrity, probe clearance, and measured gap voltage response before returning the machine to service.
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