Product Overview
The Bently Nevada 330172-00-08-90-01-05 is a precision 5mm proximity probe from the 3300 series, designed for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module features an armored construction with a 1/4-28 UNF thread, making it suitable for demanding environments. With a total length of 9.0 metres (29.5 feet) and a miniature coaxial ClickLoc connector with protector, it ensures robust signal transmission. The probe tip is made of polyphenylene sulfide (PPS), and the case is AISI 304 stainless steel (SST) for durability. This Bently Nevada 330172-00-08-90-01-05 probe offers multiple agency approvals and is manufactured in the USA.
Technical Specifications Breakdown
The Bently Nevada 330172-00-08-90-01-05 delivers essential performance parameters for accurate measurement. Key specifications include:
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Power Supply: Requires -17.5 Vdc to -26 Vdc at 12 mA maximum consumption. Operation at more positive voltage than -23.5 Vdc can reduce linear range.
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Supply Sensitivity: Less than 2 mV change per volt change in input voltage.
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Output Resistance: 50 Ω.
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Probe DC Resistance: 9.87 ± 0.90 Ω (center conductor to outer conductor) at 9.0 m length.
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Probe Temperature Range: -35°C to +177°C (-31°F to +351°F). Exposure below -34°C may cause premature seal failure.
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Maximum Thread Engagement: 0.375 inches for the 1/4-28 thread.
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Weight: 0.323 kg.
These specs ensure the Bently Nevada 330172-00-08-90-01-05 performs consistently under specified conditions (18°C to 27°C, -24 Vdc supply, 10 kΩ load, AISI 4140 steel target, 1.27 mm gap).
Industry Applications
The Bently Nevada 330172-00-08-90-01-05 is ideal for vibration monitoring in turbomachinery, large pumps, compressors, and gearboxes. For example, in a steam turbine installation, this probe's 9.0 m cable length allows placement at critical bearing points while maintaining signal integrity. The armored construction protects against physical damage in high-vibration environments, reducing downtime and maintenance costs. Its wide temperature range (-35°C to +177°C) suits both cold startup and hot operating conditions.
Installation and Setup Guidance
Proper installation of the Bently Nevada 330172-00-08-90-01-05 is critical. Drill and tap a mounting hole for the 1/4-28 thread using a #3 or larger tap drill. Engage the threads to a maximum depth of 0.375 inches. Apply recommended probe case torque of 5.1 N·m (45 in·lb), not exceeding 7.3 N·m (65 in·lb). For the connector-to-connector joint, use maximum torque of 0.565 N·m (0.42 ft·lbf). Ensure the cable bend radius does not go below 25.4 mm (1.0 in) to avoid damage. Gap the probe at 1.27 mm (50 mils) for standard calibration.
Maintenance and Reliability
The Bently Nevada 330172-00-08-90-01-05 is built for long service life with minimal maintenance. Regular inspection should focus on the cable and connector for signs of wear or corrosion. The probe tip (PPS) and case (304 SST) resist chemical and mechanical stress. Operate within the specified temperature range and avoid sustained exposure below -34°C. The tensile strength of 222 N (50 lbf) at both the probe case-to-lead and lead-to-extension cable connectors ensures mechanical integrity. Following the recommended torque values prevents thread damage and loosening over time. This reliable design reduces total cost of ownership by extending replacement intervals.
Selection Guide and Purchasing Advice
When selecting the Bently Nevada 330172-00-08-90-01-05, verify compatibility with your proximitor sensor and extension cable. This probe uses a 75 Ω triaxial FEP-insulated cable and a miniature coaxial ClickLoc connector. Ensure your system supports the 9.0 m cable length option. For new installations, confirm the mounting hole is correctly tapped for 1/4-28. PLC Source PRO offers genuine, tested units with full traceability. Contact us if you need assistance with system integration.