Advanced Asset Health Monitoring

The Bently Nevada 330103-10-18-50-01-00 3300 XL 8mm Proximity Probe stands as the gold standard for non-contacting vibration and displacement measurement in high-speed rotating machinery. Engineered for the most demanding Turbine Supervisory Instrumentation (TSI) applications, this probe delivers high-fidelity data on shaft radial vibration, axial position, and phase reference (Keyphasor). It features a patented TipLoc molding process that bonds the probe tip to the probe body with exceptional strength, preventing separation under extreme mechanical stress. Whether integrated into a Bently Nevada 3500 rack or a Honeywell Experion DCS, this sensor provides the precision required for critical machinery diagnostics and automated emergency shutdown protocols, ensuring maximum plant uptime and safety.

Configuration Matrix & Suffix Analysis

330103 - 3300 XL 8mm Proximity Probe

Specifies the industry-leading 8mm sensor head diameter, utilizing a 3/8-24 UNF threaded body for standard mechanical mounting interfaces.

10 - Unthreaded Length (Dimension A)

Designates a 1.0-inch (25.4 mm) unthreaded portion of the probe body. This configuration is typically used when the probe is mounted through a bracket where only a specific section requires clearance.

18 - Overall Case Length (Dimension B)

Indicates a 1.8-inch (45.7 mm) total threaded case length. This provides sufficient adjustment range to set the proper gap voltage against the shaft target.

50 - Total Length Option

Confirms a 5.0-meter (16.4 feet) total electrical length. This probe is designed for use in a 5-meter system without requiring an additional extension cable for shorter runs, or it must be matched with specific Proximitor calibrations.

01 - Connector and Cable Option

Features the miniature coaxial ClickLoc connector with a standard cable. The ClickLoc design provides a secure, vibration-resistant connection that requires no special tools for installation.

00 - Agency Approval Option

Designates standard approvals for non-hazardous locations or general-purpose industrial use.

Critical Technical Specifications

Field Implementation & Gapping Guide

Achieving the correct electrical gap is vital for accurate vibration monitoring. During installation, use a digital multimeter to measure the DC output at the Proximitor sensor; adjust the probe position until the bias voltage reads -10.0 VDC, which corresponds to the center of the 80-mil linear range. Given the 1.8-inch case length, ensure the probe is secured with a lock nut and that the cable is routed with a minimum bend radius of 25.4 mm (1.0 inch). Avoid running probe leads parallel to high-voltage power lines to minimize EMI interference which can cause "ghost" vibration signals in the DCS.

Integrity in Hostile Environments

The 330103-10-18-50-01-00 excels where other sensors fail. Its polyphenylene sulfide (PPS) tip is chemically resistant to the aggressive synthetic lubricants and high-pressure steam environments found in modern power generation facilities. This probe maintains a stable scale factor across its entire temperature range, ensuring that thermal expansion of the machine does not introduce false displacement data. It integrates natively with the 3300 XL Proximitor and the 3500/42M Displacement Monitor, providing a seamless bridge to high-level control systems like Honeywell Experion PKS for comprehensive asset management.

Supply Chain & Logistics Detail

Delivery time: 3-5 days when payment finish, BY DHL/FEDEX/UPS.

We prioritize the integrity of your instrumentation. Each probe is shipped in anti-static industrial packaging with the ClickLoc connectors capped and the probe tip protected by a dedicated sleeve to prevent physical or electrostatic damage.

System Integration FAQs

Q1: What does the "50" suffix mean for my system design?

A1: The "50" indicates a 5.0-meter total cable length. This is a "total system" probe. If you are using a 5-meter Proximitor, you do not need an extension cable. If you use an extension cable with this probe, you must ensure the Proximitor is calibrated for the resulting total length (e.g., 7m or 9m).

Q2: Can I mount this probe in an oil-filled bearing housing?

A2: Yes. The probe is designed for fluid-submerged applications. However, you must use a fluid-tight cable seal (such as a Bently Nevada probe housing) to prevent oil from wicking through the cable into the junction box.

Q3: How do I verify the probe is still within calibration?

A3: Use a TK-3 Proximity System Test Kit to move a target toward and away from the probe tip in measured increments. Record the voltage changes to verify the 200 mV/mil (7.87 V/mm) scale factor remains accurate.