Product Overview
When physical abuse and environmental factors threaten vibration monitoring reliability, the Bently Nevada 330191-00-33-15-00 3300 XL 8 mm ETR Probe provides a robust solution. This industrial automation module uses patented TipLoc and CableLoc designs to deliver superior durability against probe tip detachment and cable pull-out. The 330191-00-33-15-00 is part of the 3300 XL series, engineered for high-performance proximity sensing in critical machinery.
Technical Specifications
The Bently Nevada 330191-00-33-15-00 offers precise electrical and mechanical parameters for reliable operation:
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Power Supply: Requires -17.5 Vdc to -26 Vdc (nonincendive circuit) at 12 mA maximum consumption; with barriers -23 Vdc to -26 Vdc. Operation above -23.5 Vdc may 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 (RPROBE): For 1.5 m probe, 7.73 Ω ± 0.50 Ω.
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Probe Tip Material: Polyphenylene sulfide (PPS).
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Probe Case Material: AISI 303 or 304 stainless steel.
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Cable: 75Ω triaxial, FEP insulated (standard) or PFA insulated (extended temperature range). Optional flexible AISI 302/304 SST armor with FEP outer jacket.
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Tensile Strength: 330 N (75 lbf) probe case to probe lead; 270 N (60 lbf) at extension cable connectors.
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Connector Material: Gold-plated brass or gold-plated beryllium copper; maximum torque 0.565 N·m (5 in·lbf).
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Thread: 3/8-24 UNF; maximum thread engagement 0.563 in.
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Weight: 323 g/m (11.4 oz).
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Temperature Schedule: For EPL Ga/Gc: T1 -55°C to +232°C; T2 -55°C to +177°C; T3 -55°C to +120°C; T4 -55°C to +80°C; T5 -55°C to +40°C. For EPL Dc: various ratings depending on ambient temperature.
Industry Applications
The Bently Nevada 330191-00-33-15-00 excels in high-vibration environments such as turbine bearing monitoring, compressor train protection, and pump shaft positioning. Its 8 mm PPS tip and thicker encapsulation resist physical impacts common in heavy machinery. The optional FluidLoc cable prevents oil leakage inside the probe cable, making it ideal for lubricated equipment. In a typical steel mill application, this probe continuously monitors roll eccentricity while withstanding coolant splash and debris.
Maintenance & Reliability
Thanks to the patented CableLoc design providing 330 N pull strength, the Bently Nevada 330191-00-33-15-00 minimizes failures from cable strain. The Viton O-ring seals differential pressure between tip and case. Regular inspection should focus on connector torque (0.565 N·m) and cable jacket integrity. For extended life, avoid voltage more positive than -23.5 Vdc to maintain full linear range. The 330191-00-33-15-00 is not pressure tested; handle with care in high-pressure environments.
Selection Guide & Purchasing Advice
When ordering the Bently Nevada 330191-00-33-15-00, verify the total probe length (1.5 meters in this configuration) and thread type (3/8-24 UNF). This model is a 3300 XL 8 mm ETR probe without armor. For applications requiring fluid ingress prevention, request the FluidLoc option. For systems using barriers, ensure supply voltage stays within -23 Vdc to -26 Vdc. PLC Source PRO stocks this new and original factory-packed module with a 12-month warranty. Contact our team for integration support.