Bently Nevada 330104-00-22-10-02-CN Proximity Probe for 3300 Series

Bently Nevada 330104-00-22-10-02-CN Proximity Probe for 3300 Series

The Bently Nevada 330104-00-22-10-02-CN is an 8mm eddy-current proximity probe engineered for seamless integration into the Bently Nevada 3300 Series continuous machinery protection architecture. Rather than functioning as a standalone sensor, this probe is designed from the ground up to operate as a precision signal-origination node within a layered industrial automation system — feeding real-time radial vibration, axial position, and differential expansion data upward through the signal chain to protection monitors, safety logic solvers, and plant-level DCS platforms.

In modern rotating machinery protection systems, the integrity of the entire control architecture depends on the consistency and accuracy of the measurement layer. The 330104-00-22-10-02-CN addresses this requirement by delivering a calibrated output signal that is fully compatible with the Bently Nevada 3300 XL 8mm Proximitor® Sensor (such as the 330180 series), ensuring that the probe-to-driver signal chain maintains the required sensitivity of –7.87 V/mm (–200 mV/mil) across the full operating range. This signal consistency is critical when the downstream protection monitor — typically a 3500/40M Proximitor®/Seismic Monitor or a 3500/42M Proximitor®/Seismic Monitor — must make trip decisions within milliseconds based on vibration amplitude thresholds.

System architects specifying this probe for turbine, compressor, or pump train applications will find that the 330104-00-22-10-02-CN integrates directly into existing 3500 Series rack-based monitoring systems, including the 3500/01 Rack Interface Module and 3500/05 Power Supply infrastructure. The probe’s armored cable construction and field-replaceable connector design reduce mean time to repair (MTTR) during scheduled outages, supporting the long-term maintenance efficiency goals of continuous process plants.

Product Specification Table

System Compatibility Notes

The 330104-00-22-10-02-CN occupies the measurement layer of a multi-tier machinery protection architecture. Its role begins at the physical interface with the rotating shaft and extends through the signal chain to the protection and control layers. Understanding this vertical integration is essential for system engineers specifying components for new installations or replacement programs.

At the I/O and signal conditioning layer, the probe pairs with the Bently Nevada 330180-91-00 Proximitor® Sensor (or equivalent 330180 series driver), which conditions the raw eddy-current signal into the standard –24 VDC output range consumed by the protection monitor. This probe-driver pairing must be matched and calibrated as a system — substituting unmatched components introduces gap voltage errors that can cause nuisance trips or, more critically, missed trips in overspeed or high-vibration events.

At the protection and monitoring layer, the conditioned signal feeds into a 3500/40M or 3500/42M monitor card installed within a 3500 Series monitoring rack. The rack infrastructure — including the 3500/01 Rack Interface Module, 3500/05 Power Supply Module, and 3500/20 Rack Configuration Module — provides the backplane communication, power distribution, and configuration management that transforms individual probe signals into system-level protection logic. Redundant power supply configurations using dual 3500/05 modules are common in critical service applications such as gas turbine generator sets and large centrifugal compressors.

At the network and integration layer, the 3500 rack communicates with plant DCS and safety instrumented systems (SIS) via Modbus TCP, OPC-DA, or hardwired relay outputs. This system integration capability allows the vibration data originated by the 330104-00-22-10-02-CN to be consumed by upstream systems — including GE Mark VIe turbine control systems or third-party safety PLCs — without signal re-engineering. The result is a unified data flow from the shaft surface to the control room historian.

For facilities operating redundant monitoring architectures, the 330104-00-22-10-02-CN supports dual-probe configurations on a single measurement plane, with each probe feeding an independent monitor channel. This arrangement satisfies API 670 requirements for critical machinery and ensures that a single probe failure does not result in a protection gap. Complementary components in such architectures typically include 3500/22M Transient Data Interface modules for waveform capture and System 1® Evolution software for condition monitoring and predictive maintenance trending.

Industrial Application Notes

The 330104-00-22-10-02-CN is deployed across a wide range of process industries where rotating machinery protection is a safety and reliability imperative.

In oil and gas and petrochemical facilities, this probe is specified for centrifugal compressor trains, gas turbine-driven generators, and steam turbine expanders. API 670-compliant installations require continuous radial vibration monitoring on all journal bearings, and the 330104-00-22-10-02-CN’s hazardous area rating and high-temperature tolerance make it suitable for both onshore and offshore environments. Integration with the plant’s safety instrumented system (SIS) via the 3500 rack’s relay outputs enables automatic shutdown on high-high vibration events.

In power generation, the probe is used on steam turbine-generator sets and combined-cycle plant auxiliary equipment. The ability to monitor differential expansion and eccentricity — in addition to radial vibration — using the same probe technology simplifies the instrumentation architecture and reduces the number of distinct spare parts that must be maintained in the plant warehouse.

In water and wastewater treatment, large vertical turbine pumps and centrifugal blowers equipped with 3500 Series monitoring systems benefit from the probe’s long-term stability and resistance to process fluid contamination. The warranty terms confirmed during quotation and availability of tested replacement units from ZYPLC’s inventory support the maintenance scheduling requirements of municipal utility operators.

In mining and minerals processing, the probe is applied to large grinding mill drives, slurry pump trains, and conveyor drive gearboxes where continuous vibration monitoring is used to extend equipment life and reduce unplanned downtime. The armored cable construction of the 330104-00-22-10-02-CN is particularly valued in these environments, where cable damage from mechanical impact or chemical exposure is a recurring maintenance issue.

In pulp, paper, and packaging applications, the probe supports condition monitoring programs on high-speed rotating equipment such as paper machine rolls, fan pumps, and compressors, where vibration trending data feeds into predictive maintenance workflows managed through System 1® or third-party CMMS platforms.

Product Compatibility FAQ

Q1: Is the 330104-00-22-10-02-CN directly interchangeable with other 330104 series probes, and does the CN cable designation affect system compatibility?
The 330104-00-22-10-02-CN is part of the Bently Nevada 330104 8mm probe family and is electrically interchangeable with other 330104 variants when paired with the correct 330180 series Proximitor® driver. The “CN” suffix designates the cable type and connector configuration — specifically, a 2.0-meter armored cable with a standard connector. This designation does not affect the probe’s sensitivity or linear range, but engineers should verify that the total system cable length (probe cable + extension cable) falls within the calibrated range specified for the matched Proximitor® driver. Exceeding the specified total cable length will shift the gap voltage curve and introduce measurement error.

Q2: Can this probe be installed in an existing 3500 Series rack without reconfiguring the monitor card or rack software?
In most replacement scenarios, the 330104-00-22-10-02-CN can be installed as a direct replacement for a failed or degraded probe of the same type without requiring changes to the 3500 rack configuration, provided the replacement probe is matched with the same Proximitor® driver model and the gap voltage is re-verified after installation. If the replacement involves a change in probe model, cable length, or driver type, the monitor channel configuration in the 3500 Rack Configuration Software (RCS) must be updated to reflect the new system parameters. ZYPLC recommends performing a full gap voltage verification and channel functional test following any probe replacement to confirm system integrity before returning the machine to service.

Q3: What does the warranty terms confirmed during quotation cover, and how does ZYPLC support long-term spare parts availability for 3300/3500 Series components?
The warranty terms confirmed during quotation covers defects in materials and workmanship from the date of shipment. All units supplied by ZYPLC are tested prior to dispatch to verify electrical performance against Bently Nevada factory specifications. For long-term spare parts programs, ZYPLC maintains inventory of 330104 series probes, 330180 series Proximitor® drivers, and associated 3500 rack modules to support planned maintenance outages and emergency replacement requirements. Customers operating critical machinery with extended turnaround intervals are encouraged to discuss consignment stock or scheduled delivery programs with the ZYPLC sales team to ensure component availability aligns with their maintenance windows.