Product Overview
The Bently Nevada 330191-00-16-15-CN is a 3300 XL 8 mm Extended Temperature Range (ETR) proximity probe designed for reliable vibration and position measurement in critical rotating machinery. This probe features patented TipLoc and CableLoc technologies to prevent common failures such as tip detachment or cable pull-out. With a 1.5 meter (4.9 feet) triaxial cable and 3/8-24 UNF thread, it is suitable for harsh industrial environments where accuracy and durability are paramount.
Technical Specifications
Based on the product data, the key specifications of the Bently Nevada 330191-00-16-15-CN include:
| Parameter |
Value |
| Power Supply Range |
-17.5 Vdc to -26 Vdc (nonincendive), -23 Vdc to -26 Vdc with barriers |
| Current Consumption |
12 mA maximum |
| Sensitivity (Power Supply) |
Less than 2 mV change per volt change |
| Output Resistance |
50 Ω |
| Probe DC Resistance (RPROBE) |
7.73 ± 0.50 Ω at 1.5 m length |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Standard Cable |
75 Ω triaxial, FEP insulated |
| Extended Temperature Cable (optional) |
75 Ω triaxial, PFA insulated |
| Armor (optional) |
Flexible AISI 302/304 SST with FEP jacket |
| Tensile Strength (probe case to lead) |
330 N (75 lbf) |
| Tensile Strength (lead to extension connector) |
270 N (60 lbf) |
| Connector Material |
Gold-plated brass or beryllium copper |
| Maximum Connector Torque |
0.565 N·m (5 in·lbf) |
| Probe Case Thread |
3/8-24 UNF, max engagement 0.563 in |
| Weight (per meter) |
323 g/m (11.4 oz) |
| Temperature Schedule (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 |
Addressing Common Failure Modes
The 330191-00-16-15-CN incorporates several design enhancements to combat typical probe failures:
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TipLoc Molding: Prevents tip detachment by creating a robust bond between the probe tip and body.
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CableLoc Design: Provides 330 N pull strength to secure the cable attachment, reducing the risk of cable breakage.
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FluidLoc Option: Optional feature prevents oil or other liquids from leaking through the cable interior into the machine.
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Thicker PPS Encapsulation: The 8 mm probe tip offers enhanced ruggedness against physical abuse.
Industry Applications
This Bently Nevada 330191-00-16-15-CN proximity probe is ideal for monitoring vibration and shaft position in turbines, compressors, pumps, and other rotating equipment. It is commonly used in power generation, oil and gas, petrochemical, and heavy industrial facilities where machine reliability is critical. The extended temperature range allows operation in high-temperature environments up to 232°C.
Installation & Setup Guidance
When installing the 330191-00-16-15-CN, ensure the probe tip is clean and free of debris. Thread the probe into the mounting hole using the 3/8-24 UNF thread, torquing the connector to a maximum of 0.565 N·m (5 in·lbf). For optimal performance, avoid exceeding the maximum thread engagement of 0.563 inches. The probe is designed to seal differential pressure between the tip and case using a Viton® O-ring; however, it is not pressure tested before shipment. If using the FluidLoc option, verify proper sealing to prevent liquid ingress. Connect the triaxial cable to a compatible Bently Nevada extension cable or monitor.
Maintenance & Reliability
Routine inspection of the probe tip and cable for wear or damage is recommended. Check the O-ring integrity periodically. The stainless steel case and PPS tip resist corrosion and mechanical stress. The patented CableLoc and TipLoc features reduce the need for frequent replacements, lowering total cost of ownership. Environmental temperatures should remain within the specified temperature schedule for the intended EPL classification.
Selection Guide & Purchasing Advice
When ordering the 330191-00-16-15-CN, verify the total length option (1.5 m), unthreaded length (0.0 in), and overall case length (1.6 in). This model includes a country-specific approval (CN). Ensure compatibility with your Bently Nevada monitor system. For reliable supply of genuine, factory-new parts with a 12-month warranty, choose PLC Source PRO. We stock the 330191-00-16-15-CN and ship in original packaging.