Product Overview for the 330780-91-CN Proximitor Sensor

The 330780-91-CN is a 3300 XL 11 mm Proximitor Sensor from Bently Nevada. Firstly, this device shares the same advanced features found in the 3300 XL 8 mm Proximitor Sensor. Specifically, its thin design allows mounting in high-density DIN-rail installations. In addition, the 330780-91-CN accepts one non-contacting 3300 XL 11 mm Proximity Probe and extension cable. Consequently, this sensor provides reliable shaft vibration and position measurements for larger machinery with greater gap requirements. Moreover, the improved RFI/EMI immunity prevents adverse effects from nearby high frequency radio signals. Therefore, the 330780-91-CN achieves European CE mark approvals without any special mounting considerations.

Model Number Breakdown

The 330780-91-CN part number contains three distinct sections. Firstly, 330780 identifies the base model as a 3300 XL 11 mm Proximitor Sensor. Secondly, 91 specifies the total length and mounting option. Specifically, this means a 9.0 meter (29.5 feet) system length with DIN rail mount configuration. Thirdly, CN indicates the agency approval option is Country Specific. As a result, the 330780-91-CN is tailored for applications requiring country-specific certifications. Therefore, always verify that the CN approval matches your local regulatory requirements before ordering.

Key Features and Benefits

High-Density DIN Rail Mounting

The 330780-91-CN features a thin design for flexible mounting. Firstly, you can install it in a high-density DIN-rail configuration. Alternatively, you can choose a traditional panel mount setup. Consequently, the 330780-91-CN adapts to your cabinet layout preferences. Therefore, space-constrained applications remain fully supported with this 11 mm sensor.

Superior RFI/EMI Immunity

The 330780-91-CN offers significantly improved RFI and EMI immunity. Firstly, this immunity prevents nearby high frequency radio signals from affecting measurements. In addition, it allows the sensor to achieve CE mark approvals easily. Specifically, no special mounting considerations are required for compliance. As a result, the 330780-91-CN performs reliably even in electrically noisy environments without shielded conduit.

SpringLoc Terminal Strips

The 330780-91-CN includes SpringLoc terminal strips for wiring. Firstly, these terminals require no special installation tools. In addition, they facilitate faster field wiring connections. Moreover, the SpringLoc design creates a highly robust electrical connection. Consequently, installation time decreases while reliability increases with the 330780-91-CN.

Factory Calibration

Proximitor Sensors are supplied from the factory calibrated to AISI 4140 steel by default. Specifically, this is the standard target material for Bently Nevada systems. However, calibration to other target materials is available upon request. Therefore, always confirm your target material when ordering the 330780-91-CN for non-standard applications.

Technical Specifications of the 330780-91-CN

General Specifications

• Manufacturer: Bently Nevada.

• Product No.: 330780-91-CN.

• Product Type: 3300 XL 11 mm Proximitor Sensor.

• Total Length: 9.0 meters (29.5 feet) system length.

• Mounting Option: DIN mount configuration.

• Agency Approval: CN (Country Specific).

• Dimensions (HxWxD): 6.35 cm x 6.12 cm x 8.13 cm approximately.

• Proximitor Sensor Material: A380 aluminum.

• System Length Options: Available in 5 or 9 meters including extension cable.

Sensor Input Compatibility

• Input Acceptance: Accepts one non-contacting probe.

• Compatible Probe: Works with 3300 XL 11 mm Proximity Probe.

• Extension Cable: Requires a matching extension cable for full system length.

Power Requirements

• Power Supply (No Barriers): Requires -17.5 Vdc to -26 Vdc at 12 mA maximum.

• Power Supply (With Barriers): Requires -23 Vdc to -26 Vdc.

• Voltage Warning: Operation above -23.5 Vdc may result in reduced linear range.

• Supply Sensitivity: Shows less than 2 mV change in output voltage per volt of input change.

• Output Resistance: Rated at 50 Ω.

Temperature and Environmental Specifications

• Operating Temperature: Ranges from -52°C to +100°C (-62°F to +212°F).

• Storage Temperature: Ranges from -52°C to +105°C (-62°F to +221°F).

• Relative Humidity: Withstands 100% condensing humidity.

• Submersion Note: Not submersible unless connectors are protected.

• Humidity Testing: Tested to IEC 68-2-3 damp heat standard.

Installation Guide for the 330780-91-CN

Follow these steps for a proper installation of the 330780-91-CN.

Step 1: DIN Rail Mounting

Firstly, secure a standard DIN rail inside your cabinet. Then, clip the 330780-91-CN onto the rail at your desired position. The thin design allows high-density placement next to other modules. Consequently, you can maximize your cabinet space utilization.

Step 2: Probe and Extension Cable Connection

After that, connect your 3300 XL 11 mm Proximity Probe. Then, attach the matching extension cable to reach the 330780-91-CN. Ensure all connectors are fully tightened and protected from moisture. The system length including extension cable is 9.0 meters total.

Step 3: Power Supply Wiring

Then, connect a DC power supply to the SpringLoc terminals. Specifically, provide between -17.5 Vdc and -26 Vdc without barriers. If barriers are present, provide -23 Vdc to -26 Vdc instead. Therefore, avoid operating above -23.5 Vdc to maintain full linear range. The SpringLoc terminals require no special tools for secure connections.

Step 4: Output Signal Wiring

Furthermore, connect the output signal wires to your monitoring system. The 330780-91-CN has a 50 Ω output resistance. Use appropriate shielded cable for optimal noise immunity. However, the improved RFI/EMI immunity eliminates the need for special shielded conduit.

Step 5: Target Installation and Gapping

Finally, install a target on your rotating shaft. The 330780-91-CN is factory calibrated to AISI 4140 steel by default. Then, set the probe gap according to your 11 mm probe documentation. Consequently, the sensor will deliver rated accuracy and performance.

Packaging List for the 330780-91-CN

• 330780-91-CN 3300 XL 11 mm Proximitor Sensor (1 unit)

• SpringLoc terminal strip connectors (pre-installed)

• Product identification label (1 sheet)

Frequently Asked Questions (FAQs) About the 330780-91-CN

Q1: What is the difference between 330780-91-CN and the 8 mm Proximitor Sensor?

The 330780-91-CN is an 11 mm Proximitor Sensor designed for larger gap requirements. In contrast, the 8 mm version has a smaller linear range. The 330780-91-CN shares the same advanced features including thin design, RFI immunity, and SpringLoc terminals. Therefore, choose the 11 mm version for applications needing greater standoff distance.

Q2: What is the system length of the 330780-91-CN?

The 330780-91-CN has a 9.0 meter (29.5 feet) system length including the extension cable. Specifically, the 91 suffix code indicates this length with DIN rail mount. Therefore, this sensor is suitable for installations where the probe is far from the Proximitor Sensor.

Q3: What target material is the 330780-91-CN calibrated to?

The 330780-91-CN is supplied from the factory calibrated to AISI 4140 steel by default. However, calibration to other target materials is available upon request. Therefore, always specify your target material when ordering for non-standard applications.

Q4: What power supply should I use with the 330780-91-CN?

The 330780-91-CN requires a negative DC voltage supply. Firstly, use -17.5 Vdc to -26 Vdc at 12 mA maximum without barriers. However, with barriers installed, use -23 Vdc to -26 Vdc instead. As a result, operation above -23.5 Vdc may reduce the linear range.

Q5: Does the 330780-91-CN work in condensing humidity environments?

Yes, it does. The 330780-91-CN withstands 100% condensing humidity. However, it is not submersible unless connectors are properly protected. The sensor has been tested to IEC 68-2-3 damp heat standards. Therefore, it is suitable for most humid industrial environments.