Bently Nevada 330103-12-18-05-02-00 – 3300 XL 8 mm Proximity Probe for Fast, Reliable Setup

The 330103-12-18-05-02-00 is part of the Bently Nevada 3300 XL 8 mm eddy-current transducer family, built for dependable shaft vibration and position measurement on critical rotating assets. From my experience, teams choose this variant when they want a drop-in, pre‑configured probe that pairs seamlessly with a matching 3300 XL Proximitor Sensor and extension cable—so commissioning goes quickly and repeatably.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Quick installation – Pre-terminated probe lead and standard 3300 XL connectors make wiring straightforward and fast.
• 3300 XL system accuracy – When paired with the matching 3300 XL 8 mm Proximitor Sensor, the system typically delivers 200 mV/mil (7.87 mV/μm) sensitivity for stable vibration and gap readings.
• Robust in harsh environments – Oil-resistant cable and sealed probe construction perform well around compressors, turbines, and large pumps.
• High-temperature capability – The probe is designed for elevated temperatures commonly encountered around bearing housings and seals (typically up to 177 °C, application-dependent).
• Stable linear range – In many cases, the 8 mm system provides an approximate 2.0 mm (80 mil) linear range when used with the correct Proximitor and extension cable.
• Drop-in compatibility – Works within the 3300 XL ecosystem for straightforward replacement and mixed-fleet support.
• Predictable setup – One thing I appreciate is that most field teams only fine-tune the mechanical gap and verify bias voltage; no deep recalibration is usually required.

Technical Specifications

Application Fields

You might notice this probe most often on:

• Steam and gas turbines (radial vibration and axial position)
• Compressors, expanders, and large pumps in oil & gas and petrochemical plants
• Generators, motors, and fans in power and process industries
• Gearboxes and critical-speed machinery where tight clearances need a stable 8 mm probe

Advantages & Value

• Reliability – The 3300 XL line has a strong field record. It seems to be the “safe choice” for plants standardizing on API 670 practices.
• Compatibility – Works cleanly with 3300 XL extension cables and Proximitor Sensors, minimizing mixed-vendor headaches.
• Faster commissioning – Pre-matched system sensitivity typically reduces calibration time to gap/bias checks.
• Inventory simplification – Keeping a standard 8 mm probe variant on hand often shortens outage duration.
• Support and documentation – Clear part coding helps maintenance identify length, thread, and armor options at a glance.

Installation & Maintenance

• Environment – Mount the probe rigidly in a clean, dry bracket with proper shielding from high EMI. Install the Proximitor in a ventilated cabinet (NEMA/IP-rated) away from heavy drives when possible.
• Wiring – Route the coax away from high-voltage runs and observe minimum bend radius. Keep probe, extension cable, and Proximitor as a matched set.
• Gap setting – Set mechanical gap to the midrange target and verify DC bias voltage at the Proximitor. This step, in most cases, confirms linear operation.
• Safety – Lock out and tag out rotating equipment, and never insert or adjust probes on a running machine unless your site procedure explicitly allows it.
• Routine checks – Periodically confirm bias voltage, inspect connectors for contamination, and clean the probe tip if oil varnish builds up.
• Firmware – Not applicable to the probe itself; keep any connected monitoring system firmware up to date per site policy.

Quality & Certifications

• Manufacturer quality system typically compliant with ISO 9001
• CE marking and RoHS conformity are commonly available for 3300 XL components
• Backed by our 365-day warranty

Compatible/Supporting Components

• 3300 XL 8 mm Proximitor Sensor (matching sensitivity and cable length)
• 3300 XL extension cable (length and armor per your route and protection needs)
• Probe brackets/collars and locknuts sized for 8 mm probe tips

Field note: a rotating equipment engineer at a refinery told us they swapped to this exact 8 mm probe variant during a planned outage and had the machine back on trend within hours—the bias check landed right where they expected, which made everyone comfortable starting up on schedule.