330709-000-080-10-02-00 | Bently Nevada | 3300 XL 11 mm Proximity Probe

Configured for shaft vibration and position monitoring in TSI networks, the Bently Nevada 330709-000-080-10-02-00 (330709 Proximity Probe) provides direct physical/electrical execution.

Hardware Specifications

Mechanical Monitoring and TSI Characteristics

The 330709 probe utilizes eddy-current probe scaling to translate shaft displacement into proportional voltage. Precise gap voltage validation is mandatory during installation, targeting a -10 VDC setpoint to ensure the sensor operates within the linear range of the Proximitor. Proper orientation is required to monitor rotor dynamics accurately, with the probe tip mounted perpendicular to the target surface. Cross-talk suppression must be enforced by maintaining required physical separation between adjacent probes to prevent electromagnetic interference.

Frequently Asked Questions

Q: Can the 8.0 m cable be field-modified or extended?

A: No. The system impedance is factory-calibrated for the specific length of the integral cable. Modifying the length alters the frequency response and linearity of the transducer system.

Q: Is this probe compatible with older 3300 series Proximitors?

A: No. The 3300 XL 11 mm probe is specifically engineered for 3300 XL series monitoring systems and requires the corresponding 3300 XL Proximitor to function within specified accuracy tolerances.

Field Installation Guidelines

• Mounting: Use the M16 threaded body to secure the probe. Tighten the lock nut firmly to ensure the probe position remains stable under machine vibration.
• Target Interface: Ensure the target surface is non-magnetic or AISI 4140 steel. A minimum target diameter of 30.5 mm is required to prevent edge effect measurement errors.
• Cable Routing: Maintain a minimum bend radius of 25.4 mm. Protect the coaxial cable from sharp edges or points of high mechanical stress to avoid jacket damage.
• Grounding: The probe body must maintain a clean, low-impedance electrical path to the machine case to minimize signal noise.
• Calibration: Verify the output signal with a high-impedance voltmeter at the Proximitor terminal to ensure the gap voltage is within the linear operating band before finalizing the mechanical gap setting.