330101-00-30-10-02-CN Bently Nevada Vibration Probe

Product Overview

The Bently Nevada 330101-00-30-10-02-CN is a heavy-duty 3300 XL 8 mm proximity probe engineered for critical machinery protection, oil film thickness analysis, and shaft vibration monitoring. Made in the U.S.A., this eddy current sensor features a standard 3/8-24 UNF fractional thread configuration, designed completely without protective armor. Sized with a 00 inch unthreaded section and a 3.0-inch overall case length, it comes with a 1.0-meter (3.3-foot) integrated coaxial cable terminated via a miniature coaxial ClickLoc connector without a connector protector. Certified with country-specific agency approvals (-CN option), this robust sensor assembly carries a nominal shipping weight of approximately 0.23 kg (0.51 lbs) based on its unarmored physical profile. The 3300 XL 8 mm platform is optimized for industrial installations requiring maximum casing strength and heavy encapsulation to defend against physical abuse in steam turbines, gas turbines, compressors, and pumps.

Core Technical Advantages

Patented TipLoc™ and CableLoc™ Engineering

This probe incorporates a patented TipLoc molding process that ensures an unbreakable bond between the Polyphenylene Sulfide (PPS) tip and the stainless steel case. Combined with the advanced CableLoc anchoring mechanism, the cable connection withstands up to 330 N (75 lbf) of pull strength to prevent pull-out failures during harsh field installations.

Ruggedized 8 mm Probe Core

By featuring a thicker encapsulation of the internal probe coil within the molded PPS plastic tip, the 8 mm body design provides superior resistance to mechanical impacts. The reinforced AISI 303/304 stainless steel case offers ultimate structural integrity against physical abuse compared to smaller 5 mm configurations.

Exceptional Moisture and Environmental Immunity

Tested in accordance with IEC standard 68-2-3, the 3300 XL probe exhibits less than a 3% change in Average Scale Factor (ASF) even when exposed to 93% relative humidity for up to 56 days. This ensures stable, drift-free voltage signals in wet or saturated industrial environments.

Technical Specifications

Installation and Maintenance

Mechanical Gapping and Positioning

When deploying the probe for radial vibration monitoring, engineering crews should adjust the mechanical gap to a recommended setting of 1.27 mm (50 mils). This physical alignment positions the sensor perfectly at the center point of its linear monitoring envelope, which translates to a baseline electrical output of -9 Vdc.

Field Wiring and Cable Infrastructure

Field connections require 0.2 to 1.5 mm² (16 to 24 AWG) wiring. It is highly recommended to use three-conductor shielded triad cable with tinned field wiring to protect signals. Ensure the maximum run length between the 3300 XL Proximitor Sensor and the monitoring rack does not exceed 305 meters (1,000 feet) to prevent high-frequency signal rolloff.

Thermal Conditions and Seal Preservation

The standard probe handles a wide operational threshold from -52°C to +177°C (-62°F to +350°F). However, specialized maintenance crews must note that exposing the assembly to extreme sub-zero temperatures below -34°C (-30°F) may induce premature contraction and structural failure of the built-in Viton pressure seal.

Engineering Advantages

Excellent Linearity Tracking

The 1-meter sensor system guarantees a Deviation from Best Fit Straight Line (DSL) of less than ±0.025 mm (±1 mil) under nominal temperature operations between 0°C and +45°C. This ultra-low measurement error provides smooth, highly reproducible displacement logs for critical protection loops.

Viton® Leakage Protection

Every 3300 XL 8 mm probe features an integrated Viton O-ring contextually designed to block and seal differential pressures across the probe tip and outer metal case. For extreme oil pressure monitoring or custom containment certification, specialized laboratory testing can be requested before system commissioning.

Standard Internal Resistance

With a calibrated baseline DC resistance tracking at 7.59 ± 0.50 ohms from the inner conductor to the outer shield, verification teams can execute swift operational health checks using standard digital multimeters right at the junction box.

Technical FAQs

Q1: What is the total linear range of the Bently Nevada 3300 XL 8 mm probe?

A1: The linear range is 2 mm (80 mils). This monitoring window starts at approximately 0.25 mm (10 mils) from the target face and extends to 2.3 mm (90 mils), providing an electrical signal output ranging from roughly -1 to -17 Vdc.

Q2: What are the core dimensions of the 330101-00-30-10-02-CN hardware casing?

A2: This specific model has an unthreaded barrel length of 0.0 inches and an overall stainless steel case length of 3.0 inches, matching standard fractional brackets with a 3/8-24 UNF thread profile.

Q3: How much mass does the integrated FEP probe cable add to the installation?

A3: The unarmored 75-ohm coaxial probe cable has a calibrated structural mass specification of 323 grams per meter (11.4 ounces per meter), ensuring a lightweight yet highly stable routing profile.

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