Product Overview

The Bently Nevada 330104-00-13-90-02-CN is a high-precision 8mm proximity probe specifically engineered for reverse-mount applications in rotating machinery. As a cornerstone of the 3300 XL Transducer System, this probe excels in non-contact displacement and vibration measurements, providing critical data to Turbine Supervisory Instrumentation (TSI). Its reverse-mount design allows for internal installation within machine housings, often utilized in bearing pedestals where external access is restricted. By delivering a stable 7.87 V/mm (200 mV/mil) scale factor, it ensures the integrity of radial vibration and axial thrust measurements. This probe is indispensable for the protection of high-speed assets such as steam turbines, gas compressors, and large industrial pumps, offering seamless integration with 3500 series racks and modern DCS architectures like Honeywell Experion PKS.

Metric Reverse Mount Suffix Decoding

The 330104 series employs a metric M10x1 thread profile optimized for global industrial standards, with specific suffixes defining its physical reach and regional compliance.

Unthreaded Length (-00)

Indicates a 0.0 mm unthreaded length. The probe body features full threading to allow maximum versatility when adjusting the sensor depth inside a reverse-mount housing or bracket.

Overall Case Length (-13)

Specifies a 13 mm case length. This compact, short-body design is purposefully built for internal mounting where space behind the probe is highly constrained.

Total Length (-90)

Defines a 9.0-meter (29.5 feet) total cable length. This eliminates the need for an external extension cable in many installations, reducing connection points and potential signal loss.

Connector Option (-02)

Features the miniature coaxial ClickLoc™ connector with gold-plated contacts. This ensures a moisture-resistant, high-impedance connection that resists vibration-induced signal degradation.

Agency Approval (-CN)

Designates Ex-certification specifically for the Chinese market (NEPSI/CCC-Ex). This ensures full regulatory compliance for hazardous area deployments within mainland China industrial facilities.

Physical & Performance Matrix

On-Site Deployment Protocol

Since the 330104 is a reverse-mount probe, technicians must ensure the mounting bracket is rigid and free of resonance. During the gapping process, utilize a calibrated digital multimeter to monitor the "Gap Voltage" at the Proximitor terminals. The target value for a 3300 XL system is typically -10.00 Vdc, representing the center of the linear range. Maintain a minimum cable bend radius of 25.4 mm (1.0 inch) when routing the 9-meter lead. For internal installations, protect the coaxial cable with flexible conduit or stainless steel overbraid to prevent mechanical abrasion caused by oil turbulence or shaft windage.

Environmental Resilience & System Synergy

The 330104-00-13-90-02-CN thrives in chemically aggressive environments. Its Polyphenylene Sulfide (PPS) tip resists corrosion from synthetic lubricants and high-pressure steam. Unlike standard probes, the reverse-mount configuration provides superior mechanical protection for the sensor body within the machine casing. This model fully supports the advanced diagnostic capabilities of the Bently Nevada 3500/42M monitor, enabling early detection of shaft rub, rotor imbalance, and fluid-film bearing instability. This level of reliability is critical for maintaining Safety Integrity Level (SIL) compliance in emergency shutdown loops.

Global Shipping & Handling

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

All sensors are shipped in anti-static industrial packaging. Each probe undergoes rigorous factory testing and arrives with a unique serial number for full E-E-A-T traceability and quality assurance.

Site Engineering Consultation

Q1: Can I use this 9.0m probe with a standard 5.0m extension cable?

A1: No. A 9.0-meter probe is designed to connect directly to a 9.0-meter Proximitor without an extension cable. Adding an extension cable will exceed the tuned electrical length and result in massive scale factor errors.

Q2: What is the benefit of the -CN suffix?

A2: The -CN suffix indicates the probe carries the necessary Chinese Ex certifications. Using a standard -05 or -00 approval probe in a regulated Chinese facility may lead to compliance failure during safety audits.

Q3: Is the M10x1 thread compatible with 3/8-24 housings?

A3: No. The 330104 is a metric probe. It will not fit in 3/8-24 (English thread) ports. Verify your housing thread specification before purchase to avoid mechanical mismatch.