First TwinCAT PLC Project on a Beckhoff IPC
Build and verify a first TwinCAT PLC project on a Beckhoff IPC. This checklist covers target selection, EtherCAT discovery, I/O mapping, safe activation, restart tests, and commissioning records.
Manufacturer: Bently Nevada
Product No.: 330101-00-55-05-02-00
Country of origin:United States
Product Type: 3300 XL 8 mm Proximity Probe
Payment: T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months
Engineered for critical industrial shaft vibration and position measurements in high-speed rotating machinery, the Bently Nevada 330101-00-55-05-02-00 acts as a reliable transducer component within the 3300 XL 8 mm Proximity Transducer System. This robust non-contacting sensor provides precise dynamic and static gap measurements, enabling operators to continuously evaluate the mechanical health of steam turbines, compressors, and high-pressure pumps. Constructed with a 3/8-24 UNF thread pattern and a 5.5-inch case length, this probe integrates directly into standard machine casings without requiring protective armor.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330101-00-55-05-02-00 |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 0.0 in |
| Overall Case Length | 5.5 in |
| Total Length Option | 0.5 meter (1.6 feet) |
| Connector / Cable Option | Miniature coaxial ClickLoc connector, standard cable |
| Agency Approvals | Not required (00 Option) |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Case Material | AISI 303 or 304 Stainless Steel (SST) |
| Operating Temperature Range | -51 degC to +177 degC (-60 degF to +351 degF) |
| Linear Range | 2.0 mm (80 mils) starting at 0.25 mm (10 mils) clearance |
| Actual Net Weight | 0.323 kg |
| Shipping Weight (Calculated) | 1.3 kg |
| Country of Origin | United States |
| Coaxial Component | Electrical Assignment |
|---|---|
| Inner Conductor | High-frequency AC signal (RF excitation from Proximitor Sensor) |
| Outer Shield / Braid | Common signal return / shielding path (ground reference) |
The Bently Nevada 330101 series is fully compatible with all 3300 XL Proximitor sensors configured for 8 mm tips. When replacing older 3300 series non-XL 8 mm probes, ensure the entire system loop length is calculated. Mismatching system lengths (e.g., using a 0.5-meter probe with a 9-meter cable on a 5-meter calibrated proximitor) will cause severe calibration slope errors. Always match probe and extension cable combined length to the Proximitor's calibrated length (typically 5.0m or 9.0m).
Mechanical interference can result if correct side clearance is not maintained during drilling and tapping. Ensure a minimum physical clearance of at least 1.5 times the probe tip diameter (12 mm) from any surrounding metal structure to avoid eddy-current side-loading. Side-loading artificially biases the sensor, shifting the baseline DC voltage and distorting the dynamic measurement range. Avoid exposure to hot concentrated acids, which can degrade the polyphenylene sulfide (PPS) tip material.
During initial installation, use a digital multimeter to measure the DC gap voltage at the Proximitor sensor's output terminal. Adjust the mechanical positioning of the probe until the gap voltage reaches approximately -10.0 VDC (the nominal center point of the 3300 XL linear curve). Always clean the coaxial connectors with electronic contact cleaner before connection and apply silicone self-fusing tape to prevent moisture and oil ingress at the junction.
Isolate, lockout, and tagout the rotating machine before inserting or adjusting proximity probes. Verify that the rotor is stationary and free from static charge buildup. Grounding the shaft prior to mechanical installation is necessary to prevent accidental electrostatic discharge (ESD) through the probe tip to the sensor circuitry.
Inspect and clean the mounting port threads, verifying compatibility with the 3/8-24 UNF specification of the probe housing.
Thread the probe into the mounting port until the PPS tip gently touches the target surface (shaft) to establish a zero-gap reference.
Back the probe out of the mounting hole by approximately 1.27 mm (50 mils) or until the real-time gap voltage matches your target system specification (typically -10 VDC).
Tighten the locknut to secure the probe body. Hand-tighten the miniature coaxial ClickLoc connector; do not apply excessive force with pliers.
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Returns & Warranty

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Returns & Warranty
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| Color pattern |
Silver
Blue
|
| Country of origin |
United States
|