Bently Nevada 330102-00-13-90-02-00 Proximity Probe for 3300 XL
The Bently Nevada 330102-00-13-90-02-00 is an eddy-current proximity probe engineered as a core sensing element within the Bently Nevada 3300 XL machinery protection and condition monitoring architecture. Designed for continuous, non-contact measurement of shaft radial vibration, axial position, and differential expansion, this probe integrates seamlessly into multi-channel monitoring systems deployed across rotating machinery in power generation, petrochemical, oil and gas, mining, metallurgy, and heavy industrial process environments. Its role extends beyond simple signal acquisition — it functions as the primary data source for the entire vibration monitoring chain, feeding real-time displacement signals to the 3300 XL series monitors, enabling the control system to make protection decisions at the machine level.
Within a layered automation architecture, the 330102-00-13-90-02-00 operates at the field sensing layer, interfacing directly with the 3300 XL proximitor/extension cable system. The proximitor converts the raw eddy-current signal into a voltage output proportional to the gap distance between the probe tip and the rotating shaft. This conditioned signal is then routed to the 3300 XL monitor rack — typically housed in a dedicated machinery protection cabinet — where it is processed by individual monitor modules such as the 3300/16 Dual Vibration Monitor or the 3300/25 Keyphasor Module. The monitor rack communicates alarm and trip states to the plant DCS or safety instrumented system (SIS) via hardwired relay outputs or digital communication interfaces, completing the signal flow from the rotating shaft to the control room operator interface.
System consistency is a defining advantage of specifying the 330102-00-13-90-02-00 within an established 3300 XL installation. Because the probe, extension cable, and proximitor are calibrated as a matched set, substituting any component outside the validated combination introduces measurement uncertainty that can compromise trip setpoint accuracy. Engineering teams responsible for machinery protection system upgrades, spare parts standardization, or greenfield installations benefit from sourcing the complete probe assembly from a single, traceable supply chain. This approach reduces commissioning time, simplifies calibration documentation, and supports compliance with API 670 machinery protection standard requirements.
Redundancy design is another critical consideration in high-availability machinery protection architectures. Critical rotating equipment — compressors, turbines, pumps, and fans — typically requires dual or triple redundant proximity probe installations on each measurement plane. The 330102-00-13-90-02-00 supports these redundant configurations by providing consistent sensitivity and linearity characteristics across matched probe pairs, ensuring that voting logic within the 3300 XL monitor or the plant safety system operates on comparable signal inputs. In a 2oo3 (two-out-of-three) voting architecture, probe-to-probe consistency is essential to prevent spurious trips or missed protection events.
Long-term maintenance efficiency is supported by the probe’s robust construction and the availability of factory-calibrated replacement assemblies. Planned maintenance intervals for rotating machinery often coincide with major overhaul windows, during which proximity probe condition is assessed and probes showing tip wear, cable damage, or sensitivity drift are replaced. Having a verified, availability confirmed by RFQ supply of 330102-00-13-90-02-00 assemblies with documented calibration data reduces machine downtime and eliminates the risk of extended outages caused by parts unavailability. All units supplied by ZYPLC are covered by a warranty terms confirmed during quotation, with full traceability documentation available upon request.
Product Specification Table
| Parameter |
Specification |
| System Role |
Field Sensing — Radial Vibration / Axial Position Measurement |
| Compatible System |
Bently Nevada 3300 XL Machinery Protection System |
| Measurement Principle |
Eddy-Current (Non-Contact) |
| Probe Length |
13 mm (Short Probe) |
| Cable Length |
90 cm (Integral Cable) |
| Connector Type |
02-00 (Standard BNC-compatible termination) |
| Sensitivity |
200 mV/mil (7.87 V/mm) nominal |
| Linear Range |
Approx. 0–80 mil (0–2 mm) gap |
| Target Material |
AISI 4140 Steel (standard); other alloys require recalibration |
| Operating Temperature |
-35°C to +177°C (probe body) |
| Power Supply |
Via 3300 XL Proximitor (–24 VDC nominal) |
| Communication / Output |
Analog voltage output to 3300 XL Monitor Module |
| Installation Environment |
Bearing housing, bearing bracket, or proximity probe holder per API 670 |
| Compliance |
API 670 (Machinery Protection Systems) |
| Warranty |
warranty terms confirmed during quotation — All units supplied by ZYPLC |
System Compatibility Notes
The 330102-00-13-90-02-00 proximity probe does not operate in isolation — its value is realized through coordinated integration with the full 3300 XL system architecture. At the signal conditioning layer, the probe pairs with the Bently Nevada 330130 Proximitor (or 330180 series for extended temperature applications), which provides the –24 VDC excitation and converts the eddy-current impedance change into a calibrated voltage signal. The extension cable — typically a Bently Nevada 330130-040-00-00 or equivalent matched cable assembly — bridges the distance between the probe and the proximitor enclosure, maintaining signal integrity across the full cable run.
At the monitor layer, the conditioned signal feeds into the Bently Nevada 3300/16 Dual Vibration Monitor or the 3300/20 Thrust Position Monitor, depending on the measurement axis. These monitors are housed in the 3300 XL Rack, which accommodates up to eight monitor modules in a standard 19-inch panel-mount enclosure. The rack’s backplane distributes power from the 3300/05 Power Supply Module, which accepts 115/230 VAC input and provides regulated DC power to all installed monitors. For high-availability installations, a redundant power supply configuration using a second 3300/05 module with automatic switchover is standard practice.
Keyphasor reference signals — generated by a dedicated Bently Nevada 3300/25 Keyphasor Module and its associated once-per-revolution proximity probe — synchronize phase-referenced vibration measurements across all channels in the rack, enabling vector-based analysis of shaft orbit, balance resonance, and rotor dynamic behavior. Communication between the 3300 XL rack and the plant DCS is typically achieved through the Bently Nevada 3500/92 Communication Gateway (Modbus RTU/TCP or OPC) or hardwired relay contacts from individual monitor modules to the plant safety interlock system. HMI visualization of vibration trends, alarm states, and historical data is managed through Bently Nevada System 1 condition monitoring software, which aggregates data from multiple 3300 XL racks across the plant network.
Industrial Application Notes
In power generation facilities — including gas turbines, steam turbines, and hydro generators — the 330102-00-13-90-02-00 is installed on journal bearings to monitor shaft radial vibration continuously during startup, steady-state operation, and shutdown. Trip setpoints are configured in the 3300 XL monitors to initiate automatic machine shutdown if vibration exceeds API 670 alarm and danger levels, protecting against catastrophic bearing failure.
In petrochemical and oil and gas process plants, the probe is deployed on centrifugal compressors, expanders, and boiler feed pumps in hazardous area installations. The probe’s integral cable and sealed construction support operation in environments with hydrocarbon vapors, high humidity, and elevated ambient temperatures. Paired with the appropriate proximitor and explosion-proof junction box, the assembly meets the requirements of IEC Ex and ATEX zone classifications applicable to these facilities.
In mining and metallurgy applications — including ore crushers, ball mills, and large induced draft fans — the probe provides continuous shaft position monitoring that supports predictive maintenance programs. Vibration trend data collected through the 3300 XL system and System 1 software enables maintenance teams to schedule bearing replacements based on actual machine condition rather than fixed time intervals, reducing unplanned downtime and extending equipment service life.
In water treatment and municipal infrastructure facilities, the probe monitors large vertical pumps and blower trains, where axial position measurement is critical to detecting impeller wear and thrust bearing degradation before they result in catastrophic failure. The 3300 XL system’s relay outputs interface directly with the plant SCADA system, enabling automated alarm notification and remote monitoring from the control room.
Product Compatibility FAQ
Q1: Is the 330102-00-13-90-02-00 directly interchangeable with other 3300 series proximity probes, and what compatibility checks are required before installation?
The 330102-00-13-90-02-00 is part of the Bently Nevada 3300 XL probe series and is designed to work with 3300 XL proximitors and monitor modules. Before installation, verify that the target shaft material matches the probe’s calibration standard (AISI 4140 steel). If the shaft is manufactured from a different alloy — stainless steel, titanium, or Inconel — a material correction factor or field recalibration is required to maintain measurement accuracy. Always replace the probe, extension cable, and proximitor as a matched, calibrated set to preserve system accuracy and API 670 compliance.
Q2: How does this probe support redundant machinery protection architectures, and what monitor configuration is recommended for critical machines?
For critical rotating equipment, Bently Nevada recommends installing two proximity probes per measurement plane, oriented 90° apart (X and Y axes), feeding independent channels of the 3300/16 Dual Vibration Monitor. In a fully redundant architecture, each probe channel connects to a separate monitor module, and the monitor outputs are wired to a voting relay or the plant SIS in a 1oo2 or 2oo3 voting configuration. This arrangement ensures that a single probe or monitor failure does not result in either a spurious machine trip or a missed protection event, maintaining both availability and safety integrity.
Q3: What does the warranty terms confirmed during quotation cover, and how does ZYPLC support long-term spare parts availability for 3300 XL installations?
All 330102-00-13-90-02-00 units supplied by ZYPLC are covered by a warranty terms confirmed during quotation against manufacturing defects and functional failure under normal operating conditions. ZYPLC maintains dedicated inventory of 3300 XL series components — including probes, extension cables, proximitors, and monitor modules — to support both emergency replacement and planned maintenance programs. Customers with large installed bases can arrange consignment stock agreements or scheduled supply contracts to ensure parts availability aligned with their maintenance turnaround schedules. Contact our technical sales team for system-level procurement support and documentation packages.