Bently Nevada 330101-00-28-10-02-CN Ruggedized Proximity Probe

Product Overview

Bently Nevada 330101-00-28-10-02-CN Ruggedized Proximity Probe: Industrial Resilience for Harsh Environments

The Bently Nevada 330101-00-28-10-02-CN is an 8mm eddy-current proximity probe from the industry-renowned 3300 XL Series, engineered to deliver continuous, high-accuracy shaft vibration and position measurements in the most demanding industrial environments. With a 1.0-metre armoured cable and CN-type connector, this probe is purpose-built for permanent installation in rotating machinery protection systems where signal integrity, mechanical durability, and long-term reliability are non-negotiable.

Designed to operate reliably in high-temperature, high-humidity, chemically aggressive, and electromagnetically noisy plant environments, the 330101-00-28-10-02-CN integrates seamlessly into Bently Nevada’s 3300 XL monitoring architecture. It pairs directly with the 330130 extension cable and 330180 proximitor/oscillator to form a complete eddy-current measurement chain — a configuration trusted in turbomachinery protection systems across oil refineries, gas compression stations, power generation facilities, and petrochemical plants worldwide.

Rugged Specifications Table

Comprehensive Protection Solutions

The 330101-00-28-10-02-CN is rarely deployed in isolation. In a fully engineered machinery protection system, it works in concert with a range of complementary Bently Nevada and third-party components to deliver complete asset protection. The 330130-080-00-00 extension cable connects the probe to the 330180-X1-05 proximitor, which conditions the raw eddy-current signal into a calibrated voltage output readable by the 3300 XL monitor rack. Within the same control cabinet, the 3500/22M transient data interface and 3500/42M vibration monitor cards process multi-channel vibration data and trigger protective relay outputs when alarm thresholds are exceeded.

For plants running integrated DCS architectures, the proximity probe signal chain interfaces with Emerson DeltaV I/O modules or Honeywell Safety Manager controllers via 4–20 mA or digital communication links, enabling centralised condition monitoring alongside process control. In high-voltage switchgear rooms and motor control centres, Bently Nevada 3500/15 power supply modules provide clean, regulated DC power to the monitoring rack, ensuring that voltage transients from variable frequency drives, soft starters, or large motor switching events do not corrupt vibration measurement data.

Safety instrumented systems (SIS) in oil and gas facilities often incorporate the 3300 XL probe chain alongside Triconex or Pilz safety relay modules, where the vibration signal feeds a safety function that initiates emergency shutdown (ESD) on high-high vibration. Terminal blocks from Phoenix Contact or Weidmüller are commonly used within the marshalling cabinet to route probe signals cleanly, while surge protection devices guard against lightning-induced transients on field cable runs. For sites requiring wireless data transmission, the probe output can be routed through a Pepperl+Fuchs WirelessHART adapter to integrate with plant-wide asset management platforms.

Application in Critical Infrastructure

In oil and gas upstream and midstream operations, the 330101-00-28-10-02-CN is installed on gas compressor trains, pipeline booster pumps, and LNG liquefaction turbines where unplanned downtime carries costs measured in hundreds of thousands of dollars per hour. The probe’s IP67-rated tip withstands hydrocarbon condensate, H₂S-laden atmospheres, and the mechanical vibration inherent to reciprocating and centrifugal machinery operating at high differential pressures.

In coal-fired and combined-cycle power generation, this probe monitors the shaft displacement of steam turbine-generator sets continuously, feeding real-time data to the plant DCS and enabling predictive maintenance decisions that extend overhaul intervals and reduce forced outage rates. Mining and mineral processing operations deploy the 3300 XL probe series on SAG mill drive motors, slurry pump trains, and crusher gearboxes, where dust ingress, water spray, and structural vibration from blasting operations create an exceptionally hostile measurement environment.

Water and wastewater treatment facilities rely on proximity probes for monitoring large vertical turbine pumps and blower trains in aeration basins, where continuous 24/7 operation and the consequences of undetected bearing failure make condition monitoring a critical safety and operational requirement. In steel and aluminium smelting, the probe operates reliably in the presence of intense electromagnetic fields generated by arc furnaces and induction heating equipment, thanks to the shielded coaxial cable design and the high common-mode rejection of the 3300 XL signal conditioning electronics.

Security & Quality FAQ

Q1: What does the 12-month warranty cover for the 330101-00-28-10-02-CN?
The 12-month warranty covers all manufacturing defects, premature functional failure, and out-of-specification performance under normal operating conditions as defined by Bently Nevada’s published specifications. If the unit fails within the warranty period due to a covered defect, TOPNLMS will arrange replacement or repair at no additional cost. The warranty period begins from the date of confirmed shipment.

Q2: How is the probe tested before shipment?
Every 330101-00-28-10-02-CN unit dispatched by TOPNLMS undergoes a pre-shipment functional test that verifies probe tip sensitivity, cable continuity, connector integrity, and output linearity within the 3300 XL calibration range. Units that do not meet specification are quarantined and not offered for sale. A test report is available upon request for critical applications.

Q3: Is the 330101-00-28-10-02-CN compatible with existing 3300 XL and 3500 Series monitor racks?
Yes. The 330101-00-28-10-02-CN is a direct, pin-compatible replacement for all 3300 XL 8mm probe positions. It is also compatible with the Bently Nevada 3500 Series monitoring system when used with the appropriate 330130 extension cable and 330180 proximitor. No recalibration of the monitor rack is required when replacing a like-for-like probe in the same cable length configuration.

Q4: Can TOPNLMS support long-term or repeat supply of this part?
Yes. TOPNLMS maintains stock of the 330101-00-28-10-02-CN and related 3300 XL series components to support planned maintenance shutdowns, emergency replacements, and long-term spare parts programmes. For customers requiring scheduled deliveries, blanket purchase orders, or consignment stock arrangements, please contact our technical sales team to discuss supply agreements tailored to your plant’s maintenance cycle.