Product Introduction
When vibration monitoring failures cause costly unplanned downtime, the Bently Nevada 330171-00-12-05-02-00 delivers reliable shaft proximity sensing. This 5 mm probe, part of the 3300 series, features a 1/4-28 UNF thread and is built without armor for standard industrial environments. Manufactured in the U.S.A., the 330171-00-12-05-02-00 is a key component for continuous machine protection and condition monitoring systems.
Technical Specifications
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Power Supply: Requires -17.5 Vdc to -26 Vdc at 12 mA maximum consumption.
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Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage.
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Output Resistance: 50 Ω.
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Probe DC Resistance (0.5 m length): 7.45 ± 0.50 Ω from center conductor to outer conductor.
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Probe Tip Material: Polyphenylene sulfide (PPS).
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Probe Case Material: AISI 304 stainless steel (SST).
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Probe Cable: 75 Ω triaxial, FEP insulated, available in 0.5, 1, 2, 5, or 9 meters.
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Probe Temperature Range: -35°C to +177°C (-31°F to +351°F).
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Weight: 0.323 kg.
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Thread: 1/4-28 UNF, maximum thread engagement 0.375 in.
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Torque (probe case): 5.1 N·m recommended, 7.3 N·m maximum.
Installation & Setup Guidance
For the Bently Nevada 330171-00-12-05-02-00, follow precise mounting procedures. When drilling and tapping a mounting hole for a 1/4-28 probe, use a #3 or larger tap drill. Ensure the maximum length of thread engagement does not exceed 0.375 inches to avoid case damage. Apply recommended torque of 5.1 N·m (45 in·lb) to the probe case; never exceed 7.3 N·m (65 in·lb). The connector-to-connector torque should be 0.565 N·m (0.42 ft·lbf) maximum. Maintain a minimum cable bend radius of 25.4 mm (1.0 in) to prevent cable stress.
Troubleshooting & Common Issues
Common problems with proximity probes include incorrect gapping and temperature exposure. The Bently Nevada 330171-00-12-05-02-00 is rated for -35°C to +177°C, but exposing the probe to temperatures below -34°C may cause premature failure of the pressure seal. Also, ensure the supply voltage is between -17.5 and -26 Vdc; operating above -23.5 Vdc can reduce linear range. For reliable performance, maintain a gap of 1.27 mm (50 mils) with an AISI 4140 steel target as specified in the transducer system ratings.
Selection Guide & Purchasing Advice
When ordering the Bently Nevada 330171-00-12-05-02-00, verify the unthreaded length (00 = 0 in), overall case length (12 = 12 in), total length (0.5 meter), and connector option (02 = miniature coaxial ClickLoc). The agency approval is not required for this variant. Ensure your system uses a -24 Vdc supply and 10 kΩ load for standard operation. For genuine parts and expert support, trust PLC Source PRO as your reliable supplier.
For more details on the Bently Nevada 330171-00-12-05-02-00 or to place an order, contact the PLC Source PRO team today.