Product Overview

The Bently Nevada 330101-00-12-90-02-00 is a high-precision 3300 XL 8mm proximity probe specifically configured for extended reach in large-scale rotating machinery. This sensor captures critical radial vibration and axial position data, providing the primary signal for Bently Nevada 3500 Machinery Protection Systems. By utilizing eddy current technology, the probe measures the infinitesimal distance between its tip and the target shaft without physical contact, ensuring wear-free operation. This specific 9.0-meter system configuration eliminates the need for intermediate extension cables in many installations, reducing potential failure points and signal loss in demanding environments such as steam turbine generator sets and massive centrifugal compressors.

Hardware Architecture & Suffix Logic

330101 - 3300 XL 8mm Probe (3/8-24 UNF Thread)

This base model identifies the standard 8mm tip diameter probe using inch-standard mounting threads, which remains the industrial benchmark for reliability and signal stability.

-00-12-90 - Dimensional & System Length Configuration

The "-00" suffix indicates a fully threaded body with no unthreaded section. The "-12" designates a 1.2-inch overall case length, ideal for shallow mounting brackets. The "-90" specifies a 9.0-meter (29.5 ft) total system length, allowing the integral cable to connect directly to the Proximitor Sensor without an extension cable.

-02-00 - Connector and Safety Approvals

The "-02" option features a miniature coaxial connector with a factory-installed connector protector, sealing the electrical junction against moisture and oil. The "-00" suffix indicates standard agency approvals, suitable for general industrial or non-hazardous areas.

Core Technical Matrix

Field Commissioning Protocol

Successful deployment of the 9.0m probe requires precise gapping. Engineers should utilize a digital multimeter to monitor the Proximitor output, adjusting the probe depth until a gap voltage of -10.0 Vdc is achieved. This ensures the shaft target sits exactly in the center of the 80-mil linear range. Because this is a 9.0m system, never attempt to shorten the cable; the impedance is factory-tuned to this specific length. Ensure the integral cable is routed through protective conduit and secured with a minimum bend radius of 25.4 mm (1.0 in) to prevent coaxial core damage.

Engineering Performance Advantages

The 330101-00-12-90-02-00 features a polyphenylene sulfide (PPS) tip that is hermetically molded to the stainless steel body. This construction provides a robust barrier against high-pressure synthetic lubricants and corrosive process gases common in Turbine Supervisory Instrumentation (TSI). The 3300 XL series is engineered to significantly reduce "thermal drift," ensuring that vibration readings remain accurate even during the high-temperature cycles of power plant start-ups. This reliability is vital for integration with Honeywell Experion PKS or other DCS platforms where data integrity determines machine health decisions.

Ordering info

• One (1) Brand New Bently Nevada 330101-00-12-90-02-00 Probe.

• Factory-sealed anti-static moisture-barrier bag.

• Integral 9.0m cable with miniature coaxial connector.

• One (1) pre-installed silicone connector protector sleeve.

• Individual calibration test certificate and serial number traceability.

Shipping & Global Fulfillment

Delivery time: 3-5 days when payment finish via DHL/FEDEX/UPS. Our logistics team employs high-density foam inserts and specialized anti-static industrial packaging. This rigorous protection protocol ensures the 9.0m integral cable and precision threads remain pristine during global air transit to your facility.

Technical Support FAQs

Q1: Why use a 9.0m probe instead of a 1.0m probe with an extension cable?

A1: A single 9.0m integral cable reduces the number of coaxial connections. This minimizes signal attenuation and removes a common point of moisture ingress, significantly increasing long-term system reliability.

Q2: Is this probe compatible with a 5.0m Proximitor?

A2: No. Proximity systems must be matched. A 9.0m probe requires a 9.0m Proximitor Sensor. Mixing 5m and 9m components will result in severe calibration errors and incorrect vibration readings.

Q3: What does the -02 connector option provide?

A3: The -02 option includes the connector protector. This is a crucial silicone sleeve that slides over the mated junction to prevent conductive fluids like oil from shorting the coaxial signal.

Q4: Can this probe measure shaft speed?

A4: Yes. When aimed at a keyway or gear tooth, this probe functions as a Keyphasor or speed sensor, providing pulse signals for RPM and phase angle analysis in the 3500 system.