Product Overview

The Bently Nevada 330780-50-05 belongs to the 3300 XL 11 mm Proximitor Sensor family. This sensor accepts one non-contacting 3300 XL 11 mm Proximity Probe. An extension cable connects the probe to this Proximitor. Total system length reaches 5.0 meters (16.4 feet). This particular model includes a panel mount configuration. Agency approval option 05 provides multiple approvals for hazardous areas. The 330780-50-05 shares advanced features with the 3300 XL 8 mm Proximitor Sensor. Its thin design allows high-density mounting in various configurations. Improved RFI/EMI immunity achieves European CE mark approvals easily. Consequently, this sensor suits demanding industrial environments worldwide.

Technical Specifications

General Specifications

Temperature & Environmental Specifications

Electrical Specifications

Thin Design & Mounting Flexibility

The 330780-50-05 features a thin profile for space-constrained installations. High-density DIN-rail mounting works well with this design. Traditional panel mount configuration is also available. The 50 option specifically indicates panel mount hardware. This mounting method shares the familiar 4-hole footprint. Older Proximitor designs use this exact mounting pattern. Therefore, upgrading existing systems requires no panel rework. The mounting base provides electrical isolation automatically. Separate isolator plates become completely unnecessary. For this reason, installation time and cost both decrease. The Bently Nevada 330780-50-05 adapts to your preferred mounting method easily.

RFI/EMI Immunity

Improved RFI/EMI immunity protects the 330780-50-05 from electrical noise. Nearby high frequency radio signals do not affect transducer operation. European CE mark approvals are achieved without special mounting considerations. Special shielded conduit becomes unnecessary for this sensor. Metallic housings are also not required. Therefore, installation costs remain lower than with older sensors. The Bently Nevada 330780-50-05 performs reliably even in electrically noisy environments. Radio frequency interference will not corrupt your measurements. This RFI immunity also prevents adverse effects on the complete transducer system.

SpringLoc Terminal Strips

SpringLoc terminal strips simplify field wiring on the 330780-50-05. No special installation tools are required for connections. Screw-type clamping mechanisms are eliminated completely. Those traditional screws can loosen from vibration over time. SpringLoc connections remain secure permanently. Field wiring becomes faster and more robust as a result. For maintenance teams, this feature saves considerable time. The 330780-50-05 ensures reliable electrical contacts throughout its service life. Wiring errors decrease significantly with this termination method.

Factory Calibration

Proximitor Sensors ship from the factory calibrated to AISI 4140 steel. This material serves as the standard target for all Bently Nevada 330780-50-05 units. Calibration to other target materials is available upon request. For example, you can order sensors calibrated to 4145 steel or other alloys. Special calibration ensures maximum accuracy with non-standard target materials. Consult Bently Nevada for custom calibration options. For this reason, the 330780-50-05 adapts to various machinery shaft materials.

System Length Options

The 330780-50-05 offers two system length choices. Five meters serves as the standard length with the 50 option. Nine meters is also available for longer reach applications. Total length includes the probe, extension cable, and Proximitor sensor. For installations between probe and monitoring equipment, choose the appropriate length. Longer cables allow remote mounting of the Proximitor sensor. Shorter cables reduce material costs and simplify routing. Consequently, the Bently Nevada 330780-50-05 provides installation flexibility.

Installation Guidelines

Follow these steps for proper installation of the 330780-50-05.

1. Mount the sensor using panel mount method with the 4-hole footprint.

2. Connect the 3300 XL 11 mm probe using the extension cable.

3. Wire the power supply observing correct polarity for -24 Vdc nominal.

4. Verify supply voltage stays within -17.5 Vdc to -26 Vdc without barriers.

5. Secure field wiring using SpringLoc terminal strips. No special tools needed.

6. Set the probe gap according to your specific application requirements.

7. Power up the system and measure output voltage for proper operation.

Note: The 330780-50-05 ships calibrated to AISI 4140 steel. For other target materials, request custom calibration before ordering. Operation at voltages more positive than -23.5 Vdc may reduce linear range. Protect connectors from submersion to maintain humidity rating.

Packaging List

• One Bently Nevada 330780-50-05 11 mm Proximitor Sensor

• One panel mount hardware kit (4-hole footprint)

• One product quick start guide

• One SpringLoc terminal strip connector set

• One anti-static protective bag

Common FAQs

1. What is the difference between the 330780-50-05 and the 8 mm Proximitor?

The 330780-50-05 uses an 11 mm probe instead of 8 mm. Larger probe diameter provides extended linear range. This sensor accepts only 3300 XL 11 mm Proximity Probes. Many advanced features remain identical, including RFI immunity and SpringLoc terminals. For larger shaft diameters and longer measurement ranges, choose the 11 mm version.

2. What does the 05 approval option provide on the 330780-50-05?

The 05 option includes multiple approvals for hazardous areas. These typically include CSA, ATEX, and IECEx certifications. CSA covers North American hazardous locations. ATEX permits European Union installation. IECEx satisfies international explosive atmosphere requirements. For global applications, the 330780-50-05 with 05 approval meets multiple regulatory standards.

3. What target material does the 330780-50-05 use for factory calibration?

Standard factory calibration uses AISI 4140 steel. This material represents most common machinery shafts. Calibration to other target materials is available upon request. For maximum accuracy with non-standard shaft materials, order custom calibration. Consult Bently Nevada for specific material options before purchasing the 330780-50-05.

4. What is the operating temperature range for the 330780-50-05?

Operating temperature spans -52°C to +100°C (-62°F to +212°F). Storage temperature reaches -52°C to +105°C (-62°F to +221°F). Relative humidity tolerance reaches 100% condensing. Connectors must remain protected from submersion. Tested to IEC 68-2-3 damp heat standards. For this reason, the 330780-50-05 suits harsh industrial environments.

5. Can I mount the 330780-50-05 on DIN rail instead of panel mount?

The 50 option specifically indicates panel mount hardware. For DIN rail mounting, order the 51 option instead. The 330780-50-05 uses the 4-hole panel mount footprint. This pattern matches older Proximitor designs for easy retrofit. DIN rail versions use a different mounting clip system.

Why Choose This Sensor?

The Bently Nevada 330780-50-05 delivers reliable 11 mm proximity measurement for large machinery. Panel mount configuration (50) simplifies retrofit installations. Multiple approvals (05) satisfy global hazardous area requirements. RFI/EMI immunity eliminates special shielding needs. SpringLoc terminals make field wiring fast and secure. Operating temperature from -52°C to +100°C handles extreme conditions. Factory calibration to AISI 4140 steel ensures accuracy. For large turbomachinery and heavy-duty applications, choose the 330780-50-05.