Bently Nevada 330101-00-32-10-02-05 3300 XL 8 mm Proximity Probes Configured for proximity measurement and machinery protection tasks in turbine supervisory...
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Description
Bently Nevada 330101-00-32-10-02-05 3300 XL 8 mm Proximity Probes
Configured for proximity measurement and machinery protection tasks in turbine supervisory instrumentation systems, the Bently Nevada 330101-00-32-10-02-05 (330101 3300 XL 8 mm Proximity Probe) provides direct physical displacement sensing via eddy-current technology.
Hardware Specifications
Parameter
Specification
Model
330101-00-32-10-02-05
Brand
Bently Nevada
Origin
USA
Weight
0.35 kg
Dimensions
20.5 x 22.2 x 3.3 cm (Shipping size)
Operating Temp
Standard 3300 XL operational range (refer to manual)
Power Consumption
Passive probe, driven by external Proximitor loop
Thread Specification
3/8-24 UNF thread, without armor
Unthreaded Length Option
0.0 in
Overall Case Length Option
3.2 in
Total Length Option
1.0 meter (3.3 feet)
Connector Type
Miniature coaxial ClickLoc connector
Cable Type
Standard cable
Agency Approval Option
CSA, ATEX, IECEx Approvals
Eddy-Current Probe Scaling and Gap Voltage Validation
The probe utilizes eddy-current probe scaling to convert physical gap distance changes into proportional electrical signals. During installation, physical gap voltage validation is required to set the nominal DC bias voltage near the center of the linear range, typically targeting a -10 VDC output. This precise calibration ensures accurate static and dynamic monitoring of rotor dynamics. Internal impedance matching limits cross-talk suppression failures when cables are routed through shared conduits.
Frequently Asked Questions
Q: Can the standard coaxial cable be modified or spliced in the field?
A: No. The total length option of 1.0 meter is specifically calibrated to match system electrical length constraints. Splicing or modifying the cable alters the system capacitance and impedance, leading to calibration errors.
Q: What is the purpose of the ClickLoc connector?
A: The miniature coaxial ClickLoc connector provides a secure, vibration-resistant connection to the extension cable without requiring special tools, preventing accidental disconnection during machinery operation.
Field Installation Guidelines
Mechanical Mounting: Ensure the 3/8-24 UNF threaded mounting bore is clear of debris. Because this configuration features an unthreaded length option of 0.0 in, the overall case length of 3.2 in is fully threaded and must be handled with appropriate thread engagement to prevent galling.
Cable Routing: Coaxial cables must be routed away from high-voltage lines to prevent electromagnetic interference. Maintain the minimum bend radius specifications specified for standard 3300 XL cables.
Shield Grounding: Ensure the probe cable shielding is isolated from the machine housing and correctly grounded only at the Proximitor Sensor terminal to avoid ground loops.
