Bently Nevada 330103-00-08-10-02-00 – 3300 XL 8 mm Proximity Probe for critical shaft vibration and position monitoring

The 330103-00-08-10-02-00 is part of Bently Nevada’s 3300 XL 8 mm proximity transducer system. From my experience, this probe is the go-to choice when you need stable, repeatable measurements on compressors, turbines, large motors, and gearboxes—especially where you want a wider linear range than the 5 mm series. It pairs with a matching 3300 XL Proximitor sensor and an extension cable to deliver the standard 200 mV/mil (≈7.87 mV/µm) output your 3500 or 1900 series monitor expects. You might notice that it tends to handle oil and vibration very well, which is precisely why many sites standardize on it for rotating assets.

Company’s Order Placement Process and Guarantees

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

Key Features

• 8 mm probe tip – Typically chosen for larger shafts and wider linear range applications compared to 5 mm probes.
• Standard 3300 XL system sensitivity – When used with the matching Proximitor, delivers ~200 mV/mil (≈7.87 mV/µm) for direct compatibility with Bently Nevada monitors.
• Robust construction – Designed for harsh rotating machinery environments; options usually include armored or unarmored cables.
• Stable measurements on AISI 4140 targets – Eddy-current technology optimized for common shaft materials used in industry.
• Ecosystem compatibility – Works with 3300 XL Proximitor sensors and integrates with 3500, 1900/65A, and other Bently Nevada monitors in most cases.
• Flexible installation – Threaded body with jam nut makes mounting and fine gap adjustment straightforward during commissioning.

Technical Specifications

Application Fields

Typically deployed on high-value rotating assets: steam and gas turbines, centrifugal and reciprocating compressors, large induction motors, pumps, fans, and gearboxes. Maintenance teams use it for radial vibration, shaft position/thrust, and relative expansion measurements—especially where a reliable 8 mm probe footprint is preferred. A refinery maintenance lead recently mentioned that swapping like-for-like 330103 probes cut their alignment time in half because the monitors didn’t need re-scaling.

Advantages & Value

• Reliability under harsh conditions – The 3300 XL line seems to maintain calibration better where oil, heat, and vibration are constant.
• Compatibility – Drop-in fit with Bently Nevada Proximitor sensors and rack monitors reduces engineering time.
• Procurement flexibility – Option-coded lengths and armor help you standardize spares and avoid custom lead times.
• Lower lifecycle cost – Fewer false trips and stable readings typically translate into less downtime and fewer callouts.
• Technical support – Widely documented setup procedures and tools make field commissioning faster.

Installation & Maintenance

• Mounting & gap – Use the threaded sleeve and jam nut; set the initial gap at the probe tip to the monitor’s recommended nominal (often about 1.0 mm / 40 mil, depending on system setup).
• Cabinet & wiring – Mount the Proximitor on a grounded backpanel or DIN rail in a ventilated cabinet; route probe/extension cables away from VFD power cables and observe bend radius.
• Shielding & grounding – Maintain cable shields continuity; bond grounds at a single point to minimize noise.
• Safety – Lockout/tagout rotating equipment; handle connectors carefully to avoid ESD damage to the transducer chain.
• Routine checks – Verify bias voltage and scale (≈200 mV/mil) via the monitor; inspect connectors for oil ingress; clean debris at the probe tip; update monitor firmware when recommended.
• Calibration – In many cases, a quick transducer loop check with a micrometer fixture is enough to confirm linearity without removing the probe.

Quality & Certifications

• Manufacturer compliance typically includes CE and RoHS; hazardous area approvals are available on selected option codes (ATEX/IECEx/CSA variants).
• Manufacturer’s warranty is commonly 1 year; our coverage is 365 days as stated above.

Commonly Paired Components (for a complete transducer system)

• Bently Nevada 330130-xx-xx – 3300 XL Extension Cable (length and armor per option)
• Bently Nevada 330180-xx-xx – 3300 XL 8 mm Proximitor Sensor

If your site standard requires specific option codes (cable length, thread type, or armor), share the exact suffix and we’ll match inventory accordingly. That small detail typically prevents mix-ups during a shutdown.