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Help CenterBently Nevada 330103-12-18-05-02-00 – 3300 XL 8 mm Proximity Probe for Fast, Reliable Setup
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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
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.
| Brand / Model | Bently Nevada 330103-12-18-05-02-00 (3300 XL 8 mm Proximity Probe) |
| HS Code | 903180 (Measuring/monitoring instruments, other) |
| Product Type | Eddy-current proximity probe, 8 mm tip, for 3300 XL system |
| Power Requirements | Passive probe; powered via matching 3300 XL Proximitor Sensor |
| System Sensitivity | Typically 200 mV/mil (7.87 mV/μm) with correct 8 mm Proximitor and extension cable |
| Linear Range (System) | Approx. 2.0 mm (80 mil), application-dependent |
| Operating Temperature (Probe) | Typically –51 to +177 °C |
| Signal I/O Types | Coaxial connection from probe to extension cable; final output (dynamic + DC gap) provided by Proximitor Sensor |
| Communication Interfaces | None (analog eddy-current system) |
| Dimensions & Weight | 8 mm probe tip; overall probe length and cable build per ordering code |
| Installation Method | Threaded probe with locknut into bracket or probe collar; mates to 3300 XL extension cable and Proximitor |
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
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.
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.
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
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.
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