Bently Nevada 32000-28-05-05-110-03-02: Proximity Probe Housing for 32000 Series
In modern rotating machinery protection and condition monitoring systems, every component in the signal chain must be precisely matched to the control architecture it serves. The Bently Nevada 32000-28-05-05-110-03-02 Proximity Probe Housing Assembly is engineered as a system-compatible component within the Bently Nevada 32000 Series eddy-current proximity measurement platform — a platform widely deployed across turbomachinery, compressor trains, steam turbines, and critical rotating equipment in power generation, petrochemical, oil and gas, and heavy industrial environments.
This proximity probe housing is not a standalone sensor. It is a precision-matched mechanical and electrical interface that integrates the probe tip, extension cable, and proximitor driver into a coherent measurement chain. When deployed within a complete 32000 Series architecture, it ensures signal integrity from the shaft surface through to the vibration monitor rack, enabling accurate radial vibration, axial position, and differential expansion measurements that form the foundation of any API 670-compliant machinery protection system.
Understanding the role of the 32000-28-05-05-110-03-02 requires viewing it within the full layered automation hierarchy. At the field instrumentation layer, this probe housing assembly interfaces directly with the rotating shaft, converting mechanical displacement into a linear DC voltage signal. That signal is conditioned by the companion Bently Nevada 3300 XL Proximitor or equivalent signal conditioning module, which provides the buffered output required by the monitor rack. The conditioned signal then feeds into a Bently Nevada 3500 Series Machinery Protection System rack — a modular, card-based monitoring platform that processes vibration, position, and speed signals in real time. Within the 3500 rack, modules such as the 3500/42M Proximitor/Seismic Monitor Card or the 3500/40M Proximitor/Seismic Monitor Card receive and process the probe signal, applying alarm and danger setpoints configured through the Rack Configuration Software.
At the communication and integration layer, the 3500 rack connects to the plant DCS or SCADA system via Modbus TCP, PROFIBUS DP, or OPC DA/UA protocols, depending on the gateway module installed — such as the 3500/92 Communication Gateway. This enables the vibration and position data captured by the 32000-28-05-05-110-03-02 probe assembly to be surfaced on operator HMI stations, historian databases, and asset management platforms, supporting both real-time protection and long-term condition trending. The result is a fully integrated, multi-layer architecture where the probe housing assembly contributes directly to system-wide reliability and uptime assurance.
For redundant protection architectures, the 32000 Series probe system supports dual-probe configurations on critical measurement planes, with the 3500 rack providing voting logic to prevent spurious trips while maintaining protection integrity. This is particularly important in applications such as gas turbine generator sets, large centrifugal compressors, and boiler feed pumps, where unplanned shutdowns carry significant operational and financial consequences. The 32000-28-05-05-110-03-02 housing assembly is dimensionally and electrically compatible with these redundant configurations, making it a reliable choice for both new installations and replacement-in-kind maintenance scenarios.
From an engineering and commissioning perspective, the probe housing assembly simplifies field installation by providing a pre-assembled, factory-tested mechanical package. The housing protects the probe tip and cable from the harsh thermal, chemical, and mechanical environments typical of turbomachinery bearing housings and seal areas. The standardized thread and mounting dimensions of the 32000 Series housing family ensure compatibility with existing probe bosses and mounting brackets, reducing installation time and eliminating the need for custom machining during replacement or upgrade projects.
Long-term maintenance efficiency is a key advantage of sourcing the 32000-28-05-05-110-03-02 as part of a planned spare parts strategy. Maintaining a stock of matched probe housing assemblies, proximitor modules such as the Bently Nevada 3300 XL 8mm Proximitor, and associated extension cables ensures that maintenance teams can execute rapid like-for-like replacements during scheduled outages or unplanned failures, minimizing mean time to repair (MTTR) and supporting continuous production targets. All units supplied by ZYPLC are covered by a warranty terms confirmed during quotation, with pre-shipment functional testing to verify gap voltage linearity, sensitivity, and mechanical integrity before dispatch.
Product Specification Table
| Parameter |
Specification |
| Part Number |
32000-28-05-05-110-03-02 |
| Brand |
Bently Nevada |
| Series |
32000 Series Proximity Measurement System |
| System Role |
Field Instrumentation Layer — Proximity Probe Housing Assembly |
| Measurement Type |
Radial Vibration, Axial Position, Differential Expansion |
| Probe Tip Diameter |
8 mm (nominal, per 32000 Series standard) |
| Nominal Gap Range |
0.25 mm – 2.25 mm (linear measurement range) |
| Output Sensitivity |
-7.87 V/mm (standard 32000 Series sensitivity) |
| Operating Temperature |
-35°C to +177°C (probe body) |
| Target Material Compatibility |
AISI 4140 Steel, Inconel 718, standard shaft materials |
| Cable / Extension |
Compatible with 32000 Series extension cables (specify length) |
| Proximitor Compatibility |
Bently Nevada 3300 XL Proximitor, 3300 RAM Proximitor |
| Monitor Compatibility |
Bently Nevada 3500/42M, 3500/40M, 3300 Series Monitors |
| Communication (via rack) |
Modbus TCP, PROFIBUS DP, OPC DA/UA (via 3500/92 Gateway) |
| Compliance |
API 670 (Machinery Protection Systems) |
| Mounting |
Threaded housing, standard 32000 Series probe boss dimensions |
| Warranty |
warranty terms confirmed during quotation (ZYPLC, includes functional pre-shipment test) |
| system integration |
Full system integration with 3500 Series rack architecture |
System Compatibility Notes
The 32000-28-05-05-110-03-02 Proximity Probe Housing Assembly achieves its full value when deployed as part of a coordinated, multi-component control system architecture. A typical machinery protection system built around this probe assembly would include the following coordinated components:
At the field sensing layer, the probe housing assembly pairs with a Bently Nevada 3300 XL 8mm Proximitor or 3300 RAM Proximitor signal conditioner, which provides the regulated power supply to the probe and converts the eddy-current impedance change into a calibrated DC voltage output. The extension cable — selected from the Bently Nevada 32000 Series Extension Cable family in lengths matched to the machine geometry — connects the probe body to the proximitor, maintaining signal integrity across the full measurement chain.
At the monitoring and protection layer, the conditioned signal feeds into a Bently Nevada 3500 Series Machinery Protection Rack, populated with monitor cards such as the 3500/42M Proximitor/Seismic Monitor for radial vibration and the 3500/22M Transient Data Interface for transient capture during startup and shutdown events. The rack is powered by a 3500/15 Power Supply Module, with redundant power supply options available for critical applications. Relay output modules such as the 3500/32 Relay Module provide hardwired trip and alarm outputs to the machine control system or emergency shutdown system (ESD).
At the communication and integration layer, the Bently Nevada 3500/92 Communication Gateway bridges the protection rack to the plant DCS, SCADA, or asset management system, enabling the vibration and position data to be integrated into the plant-wide control architecture. This system integration capability ensures that the data captured by the 32000-28-05-05-110-03-02 probe assembly is available for real-time operator monitoring, alarm management, and long-term condition trending — supporting both protection and predictive maintenance objectives within a unified automation hierarchy.
Industrial Application Notes
The Bently Nevada 32000-28-05-05-110-03-02 Proximity Probe Housing Assembly is applied across a wide range of heavy industrial and process automation environments where rotating machinery protection is critical to operational continuity.
In power generation facilities — including gas turbine, steam turbine, and combined-cycle plants — the 32000 Series probe system monitors shaft radial vibration and axial position on turbine rotors, generator shafts, and boiler feed pump trains. The probe housing assembly’s compatibility with high-temperature bearing housing environments and its API 670 compliance make it a standard specification component in both OEM and retrofit protection system designs.
In petrochemical and oil and gas processing plants, the 32000-28-05-05-110-03-02 is deployed on centrifugal compressors, expanders, and large pump trains where continuous vibration monitoring is required to meet process safety and regulatory requirements. The probe system’s integration with the 3500 Series rack and plant DCS via the 3500/92 gateway enables seamless incorporation into the plant’s safety instrumented system (SIS) and process control architecture.
In mining, metallurgy, and heavy manufacturing applications, the probe housing assembly supports condition monitoring programs on large rotating equipment such as ball mills, kiln drives, and fan trains, where early detection of bearing wear, rotor imbalance, or misalignment can prevent catastrophic failures and unplanned production stoppages. The warranty terms confirmed during quotation and pre-shipment functional testing provided by ZYPLC ensure that replacement units are ready for immediate installation, minimizing maintenance downtime and supporting planned outage schedules.
Product Compatibility FAQ
Q1: Is the 32000-28-05-05-110-03-02 directly compatible with the Bently Nevada 3500 Series rack without additional signal conditioning?
A: No — the 32000 Series proximity probe requires a companion Proximitor (such as the Bently Nevada 3300 XL or 3300 RAM) to condition the eddy-current signal into the DC voltage output required by the 3500 Series monitor cards. The complete measurement chain consists of the probe housing assembly, extension cable, Proximitor, and monitor card. All components must be matched in sensitivity and cable length to ensure accurate calibration and API 670 compliance.
Q2: Can this probe housing assembly be used in a redundant dual-probe configuration on the same measurement plane?
A: Yes. The 32000 Series probe system supports dual-probe redundant configurations on critical measurement planes. The 3500/42M monitor card supports dual-channel inputs with configurable voting logic (e.g., 1-of-2 or 2-of-2 trip logic), enabling redundant protection without spurious trips. The 32000-28-05-05-110-03-02 housing assembly is dimensionally compatible with standard dual-probe mounting arrangements, and ZYPLC can supply matched pairs with consistent sensitivity specifications to simplify commissioning.
Q3: What warranty terms are confirmed during quotation, and what pre-shipment testing is performed?
A: Warranty terms confirmed during quotation can cover the 32000-28-05-05-110-03-02 Proximity Probe Housing Assembly against defects in materials and workmanship for twelve months from the date of shipment. Prior to dispatch, each unit undergoes functional pre-shipment testing that verifies gap voltage linearity across the specified measurement range, output sensitivity within the 32000 Series specification, and mechanical integrity of the housing, probe tip, and cable terminations. This testing ensures that the unit is ready for immediate installation and commissioning upon receipt, reducing the risk of field failures and supporting planned maintenance schedules.