Configured for radial vibration and axial position measurement in machine protection systems, the Bently Nevada 330101-00-40-10-01-00 (330101-00-40-10-01-00 Proximity Probe) provides direct physical/electrical execution.

Model Identification Matrix

• 330101: 3300 XL 8 mm Probe, 3/8-24 UNF thread.
• 00: Unthreaded length 0.0 in.
• 40: Case length 4.0 in.
• 10: Total length 1.0 meter.
• 01: Miniature coaxial ClickLoc connector with connector protector.
• 00: No agency approvals.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The 330101-00-40-10-01-00 probe is engineered to function within the 3300 XL transducer system, providing a linear range of 2.0 mm (80 mils). Precise eddy-current probe scaling is required to maintain the nominal sensitivity of 7.87 V/mm (200 mV/mil). During installation, gap voltage validation against a -10 VDC target at the mid-linear range is required to ensure accurate rotor dynamics data. The probe tip and integral cable shielding are designed for cross-talk suppression, minimizing signal interference in high-density sensor arrays within rotating machinery.

Ordering Info

• 1 x 330101-00-40-10-01-00 Proximity Probe
• 1 x Connector protector kit

Physical Installation Guidelines

• Mechanical Mounting
  • Ensure the probe is mounted in a bracket that allows for precise adjustment of the gap between the probe tip and the target.
  • Utilize a locknut to secure the probe position after calibration to prevent drift due to mechanical vibration.
• Electrical Connection
  • Connect the ClickLoc connector firmly until an audible click is registered, ensuring a low-resistance contact.
  • Avoid subjecting the coaxial cable to sharp bends; adhere to a minimum bend radius of 30 mm to maintain signal integrity.
• Grounding
  • Maintain isolation of the probe case from machine ground if the system configuration requires it to prevent ground loop currents.

Frequently Asked Questions

• What is the nominal gap setting for this probe?

  The standard operating gap is typically set to -9 VDC or -10 VDC depending on the system calibration and required linear range.

• Can the cable be trimmed to fit a specific length?

  No. The cable length is factory-matched to the system's electrical requirements; trimming will alter the impedance and introduce significant measurement errors.

• Is the probe tip replaceable?

  No. The probe tip and cable are a single, hermetically sealed assembly and cannot be repaired or replaced in the field.

• What happens if the connector protector is not used?

  Lack of a protector increases the risk of debris or conductive fluids entering the connection, leading to signal instability or intermittent readings.

• Does the probe require a specific target material?

  The default calibration is for AISI 4140 steel. Using different materials requires a change in the scale factor and system recalibration.

• Can this probe be used in high-pressure environments?

  Yes, the probe housing is designed to withstand typical pressure differentials in compressor or turbine cases, provided the mounting is properly sealed.

• Why is the signal output saturated?

  Saturation typically occurs if the probe is adjusted too close to the target, causing the sensor to exceed its linear measurement range.

• How do I check for cable integrity?

  Verify continuity of the center conductor and ensure the shield resistance is near zero when measured with a calibrated ohmmeter.