Bently Nevada 330104-00-24-10-01-CN Proximity Probe for 3300 XL

Bently Nevada 330104-00-24-10-01-CN Proximity Probe for 3300 XL

The Bently Nevada 330104-00-24-10-01-CN is an 8mm eddy-current proximity probe engineered for seamless integration within the 3300 XL Series vibration monitoring architecture. Rather than functioning as a standalone sensor, this probe is designed as a precision front-end element within a layered condition monitoring system — working in concert with signal conditioners, monitoring modules, communication gateways, and plant-level DCS or SCADA platforms to deliver continuous, high-fidelity shaft displacement data across rotating machinery applications.

In modern industrial automation, the reliability of a rotating machinery protection system depends not on any single component, but on the coherence of the entire signal chain — from the probe tip at the machine casing to the alarm output at the control room. The 330104-00-24-10-01-CN occupies the critical sensing layer of this chain, converting mechanical shaft motion into a calibrated voltage signal that feeds directly into the 3300 XL monitoring rack. Its -CN designation confirms factory calibration against Bently Nevada’s standard extension cable and driver specifications, ensuring signal integrity without field recalibration when paired with compatible system components.

System architects specifying this probe for turbine, compressor, pump, or motor protection applications will find it fully compatible with the broader 3300 XL ecosystem, including the 3300/16 and 3300/20 monitor modules, the 3500 Series rack-based monitoring platform for higher-channel-count installations, and the TK-3 and TK-23 extension cable assemblies that bridge the probe to its paired driver. The probe’s 8mm sensing diameter and -24-inch (approximately 600mm) armored cable length make it suitable for standard bearing housing installations where radial shaft vibration and position measurement are required.

Product Specification Table

System Compatibility Notes

The 330104-00-24-10-01-CN achieves its full protective value only when integrated within a properly configured 3300 XL or 3500 Series monitoring architecture. At the sensing layer, the probe pairs with a compatible 3300 XL 8mm driver module — such as the 330180 proximitor/driver — which conditions the raw eddy-current signal into a calibrated voltage output. This signal is then routed via TK-3 or TK-23 extension cable assemblies to the monitor rack, where modules such as the 3300/16 Dual Vibration Monitor or the 3300/20 Radial Vibration Monitor process the data against configurable alarm and danger setpoints.

For installations requiring higher channel density or integrated machinery protection across multiple machines, the 3500 Series rack platform provides a scalable alternative, accepting the same probe-driver signal chain while adding support for Modbus RTU, FOUNDATION Fieldbus, and Ethernet-based communication to plant DCS or SCADA systems. At the network layer, communication gateway modules within the 3500 rack translate vibration data into process variables accessible by Honeywell, Emerson, or Siemens DCS platforms, enabling centralized condition monitoring without dedicated vibration software at every operator station.

Redundancy-critical applications — such as steam turbine protection in power generation or gas compressor protection in LNG facilities — typically deploy probe pairs at each measurement plane, with the 330104-00-24-10-01-CN serving as the primary sensor and a secondary probe providing backup signal continuity. The 3500/42M Proximitor/Seismic Monitor supports dual-probe input configurations, enabling automatic switchover without loss of protection coverage. At the power layer, the 3500 rack draws from redundant 24 VDC power supplies, ensuring that a single power supply failure does not interrupt vibration monitoring continuity.

At the human-machine interface layer, vibration trend data from the 3300 or 3500 monitor is typically displayed on operator workstations running System 1 Evolution condition monitoring software, which aggregates probe data across multiple machines into a unified dashboard. Maintenance engineers can review historical vibration trends, configure alarm thresholds, and generate predictive maintenance reports — all traceable back to the calibrated signal originating at the 330104-00-24-10-01-CN probe tip. This end-to-end signal traceability is a key advantage of specifying factory-calibrated -CN probes over field-calibrated alternatives.

Industrial Application Notes

In power generation facilities, the 330104-00-24-10-01-CN is commonly installed on steam turbine bearing housings to monitor shaft radial vibration in real time. Paired with axial position probes and keyphasor sensors within the same 3300 XL rack, it provides the complete vibration signature required for API 670 machinery protection compliance. Alarm and danger outputs from the monitor rack are hardwired to the turbine control system’s emergency shutdown logic, ensuring that high-vibration events trigger automatic trip sequences before mechanical damage occurs.

In petrochemical and refinery applications, the probe is deployed on centrifugal compressor trains where continuous operation is critical to process throughput. The -CN calibration standard ensures that replacement probes can be installed during planned turnarounds without requiring field recalibration, reducing maintenance downtime and eliminating calibration uncertainty. Compressor protection systems in these environments typically integrate the 3300 XL monitoring data with anti-surge control systems, using vibration amplitude as one of several inputs to compressor load management algorithms.

Water treatment and municipal utility operators use the 330104-00-24-10-01-CN on large vertical turbine pumps and horizontal split-case pumps, where bearing wear and rotor imbalance are leading causes of unplanned outages. The probe’s armored cable construction provides mechanical protection in wet or chemically aggressive environments, while the 3300 XL monitor’s 4–20 mA analog outputs allow vibration data to be integrated directly into existing SCADA systems without additional signal conversion hardware.

In mining and mineral processing, the probe monitors crusher drives, mill pinion bearings, and conveyor drive motors — applications where high dust loading and vibration levels demand robust sensor construction and reliable signal conditioning. The 3300 XL system’s configurable alarm setpoints allow maintenance teams to establish machine-specific vibration baselines and receive early warning of developing faults, supporting condition-based maintenance programs that reduce unplanned downtime across large equipment fleets.

Product Compatibility FAQ

Q1: Is the 330104-00-24-10-01-CN directly compatible with the 3500 Series rack platform, or is it limited to 3300 XL monitors?
The 330104-00-24-10-01-CN is fully compatible with both the 3300 XL and 3500 Series monitoring platforms. The probe-driver signal chain — probe, extension cable, and proximitor/driver — is standardized across both product families. When migrating from a 3300 XL rack to a 3500 Series rack, the existing probe installation can be retained, with only the monitor module and rack hardware requiring replacement. This backward compatibility protects capital investment in probe installations during system upgrades.

Q2: What does the -CN calibration designation mean, and does it affect interchangeability with other 330104 variants?
The -CN suffix indicates that the probe has been factory-calibrated as part of a standard Bently Nevada system, using the specified extension cable and driver combination to establish a known sensitivity (typically 200 mV/mil or 7.87 V/mm). This calibration is performed at the factory and documented on the probe’s calibration certificate. The -CN designation is not interchangeable with -AN or other calibration variants without recalibration, as sensitivity values differ between calibration standards. Always specify the correct calibration suffix when ordering replacement probes to maintain system accuracy and avoid alarm setpoint errors.

Q3: What does the warranty terms confirmed during quotation cover, and how does it apply to probes installed in continuous-duty applications?
The warranty terms confirmed during quotation covers manufacturing defects in materials and workmanship, including probe body integrity, cable armor continuity, connector termination quality, and factory calibration accuracy. For probes installed in continuous-duty rotating machinery protection applications, the warranty period begins from the date of shipment. In the event of a warranty claim, ZYPLC coordinates directly with the customer to arrange replacement unit dispatch, minimizing protection system downtime. Probes damaged by mechanical impact, chemical exposure beyond rated limits, or installation errors are evaluated on a case-by-case basis. Customers are encouraged to maintain installation records and calibration documentation to support warranty claims.