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BENTLY 125388-01 Keyphasor Probe Module
Product Overview: BENTLY 125388-01
The BENTLY 125388-01 keyphasor probe module is a high-precision industrial sensor designed for rotational speed and phase measurement in rotating machinery. As a critical component of Bently Nevada’s 3500 Series Machinery Health Monitoring System, this module serves as the primary interface for generating reference signals that enable precise vibration analysis and machinery alignment. The 125388-01 combines advanced inductive sensing technology with a rugged design to deliver reliable performance in harsh industrial environments, making it essential for predictive maintenance strategies in mission-critical applications.
Engineered for compatibility with Bently Nevada’s 3500/32 Keyphasor Module (e.g., 3500/32 125712-01), the 125388-01 features a 5 mm nominal probe diameter and 2 m cable length, ensuring optimal signal integrity and installation flexibility. Its -40°C to +120°C operating temperature range and IP65 protection rating allow deployment in extreme conditions, from power plant turbines to offshore compressors. The module’s stainless steel construction resists corrosion and mechanical stress, while its linear measurement range of 0–2 mm ensures accurate detection of shaft rotations, enabling operators to monitor critical parameters such as speed, phase, and timing.
In automation systems, the 125388-01 plays a pivotal role in enabling precise machinery diagnostics. By providing a reference signal for vibration analysis, it helps identify issues like misalignment, bearing wear, or imbalance at an early stage, reducing unplanned downtime and maintenance costs. Its seamless integration with Bently Nevada’s monitoring racks and software tools (e.g., System 1) makes it an indispensable component for industries relying on reliable machinery performance.
Technical Specifications: BENTLY 125388-01
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 125388-01 |
| Manufacturer | BENTLY NEVADA |
| Product Type | Keyphasor Probe Module |
| Probe Diameter | 5 mm |
| Cable Length | 2 m |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Operating Temperature | -40°C to +120°C |
| Storage Temperature | -40°C to +150°C |
| Protection Rating | IP65 |
| Material | Stainless steel housing |
| Connector Type | Bently Nevada 18-pin connector |
| Weight | 0.4 kg |
| Country of Origin | United States |
Main Features and Advantages: BENTLY 125388-01
Precision Phase Reference: The 125388-01 generates accurate keyphasor signals, critical for determining the angular position of rotating shafts. This precision allows for precise vibration analysis, enabling operators to distinguish between normal and abnormal machinery behavior with high accuracy.
Rugged Industrial Design: Built with a stainless steel probe tip and IP65-rated enclosure, the module withstands harsh environmental factors, including dust, moisture, and high temperatures. Its ability to operate reliably in -40°C to +120°C environments makes it suitable for extreme industrial settings, such as steel mills or chemical plants.
Seamless System Integration: Specifically designed for Bently Nevada’s 3500 Series, the 125388-01 ensures compatibility with Keyphasor modules and monitoring racks, simplifying system setup and calibration. This integration reduces installation time and minimizes the risk of compatibility issues with other components.
Long-Life Performance: The probe’s corrosion-resistant materials and reinforced cable construction extend its service life, even in high-vibration or chemically aggressive environments. This longevity reduces replacement costs and maintenance frequency, enhancing overall system reliability.
Easy Calibration and Maintenance: The 125388-01 supports on-site calibration using Bently Nevada’s standard tools, allowing operators to verify performance without specialized equipment. Its modular design facilitates quick replacement, minimizing downtime during maintenance procedures.
Application Areas: BENTLY 125388-01
The BENTLY 125388-01 keyphasor probe module is widely applied in industries where precise machinery monitoring is essential:
- Power Generation: Monitors steam turbines, generators, and auxiliary equipment in thermal, hydro, and renewable energy plants. The module’s high-temperature tolerance ensures accurate phase measurements in turbine shafts and generator rotors.
- Oil and Gas: Deployed in refineries, pipelines, and offshore platforms to monitor compressors, pumps, and motors. Its corrosion resistance makes it suitable for harsh offshore environments and chemically active processing areas.
- Manufacturing: Installed in CNC machines, presses, and robotic arms to provide phase reference for vibration analysis, ensuring precision in high-speed manufacturing processes like automotive assembly lines.
- Water Treatment: Used in pump stations and wastewater treatment plants to monitor pump shafts and impellers, ensuring continuous operation and compliance with environmental regulations.
- Aerospace and Defense: Supports condition monitoring of aircraft engines, ground support equipment, and military machinery, where precise rotational data is critical for mission success.
Related Products: BENTLY 125388-01
- BENTLY 3500/32 Keyphasor Module (125712-01): A set with module that processes signals from the 125388-01, converting keyphasor measurements into standardized outputs for monitoring systems.
- BENTLY 3500/42M Vibration Monitoring Module (176452-01): Works alongside the 125388-01 to analyze vibration data, leveraging keyphasor signals for precise fault detection.
- BENTLY 3500/05 Rack (149249-01): A mounting chassis that houses the Keyphasor module and other monitoring components, integrating the 125388-01 into a comprehensive health monitoring system.
- BENTLY 3300/32 Keyphasor Probe (177230-01): An alternative probe with enhanced diagnostic features, compatible with the 125388-01 for advanced rotational monitoring.
- BENTLY 125389-01: A variant with a 3 m cable length, offering flexibility for installations requiring longer probe placement.
- BENTLY 3500/92 Communication Gateway (136180-01): Enables Ethernet-based communication for the 125388-01, facilitating remote monitoring and data integration with SCADA systems.
Installation and Maintenance: BENTLY 125388-01
Pre-installation Preparations:
Before installing the 125388-01, verify the installation location meets temperature and environmental requirements. Clean the mounting surface and ensure proper clearance around the probe tip to avoid mechanical interference. Use the provided mounting bracket to secure the probe to the machinery casing, maintaining a perpendicular alignment to the target shaft’s keyway. Connect the probe cable to the Bently Nevada Keyphasor module (e.g., 3500/32 125712-01), ensuring the connector is tightly secured to prevent signal loss. Calibrate the probe using Bently Nevada’s System 1 software to establish the optimal gap and linear range before commissioning.
Before installing the 125388-01, verify the installation location meets temperature and environmental requirements. Clean the mounting surface and ensure proper clearance around the probe tip to avoid mechanical interference. Use the provided mounting bracket to secure the probe to the machinery casing, maintaining a perpendicular alignment to the target shaft’s keyway. Connect the probe cable to the Bently Nevada Keyphasor module (e.g., 3500/32 125712-01), ensuring the connector is tightly secured to prevent signal loss. Calibrate the probe using Bently Nevada’s System 1 software to establish the optimal gap and linear range before commissioning.
Maintenance Recommendations:
- Routine Inspections: Monthly visual checks for cable wear, connector corrosion, or physical damage to the probe tip. Use a thermal imager to detect unusual temperature gradients that could indicate probe malfunction.
- Calibration Verification: Annually verify probe sensitivity and linearity using a calibration fixture, adjusting as needed to maintain measurement accuracy. Reference Bently Nevada’s calibration procedures for step-by-step guidance.
- Environmental Monitoring: Regularly assess the operating environment for changes in temperature, humidity, or vibration levels that could affect probe performance. Install additional protection (e.g., heat shields) if conditions exceed specified limits.
- Spare Parts Management: Keep a spare 125388-01 on hand, along with compatible connectors and cables, to facilitate rapid replacement in case of failure. Leverage our global supply chain for quick delivery of discontinued or urgent components.
Product Guarantee: BENTLY 125388-01
Our company provides a 12-month quality warranty for the BENTLY 125388-01 keyphasor probe module, covering hardware defects from non-human causes. During the warranty period, we will replace any probe with abnormal sensitivity, cable failures, or structural damage at no cost. For discontinued models or urgent repair needs, our extensive inventory and global logistics network ensure prompt fulfillment, minimizing downtime and supporting continuous industrial operation.
With 17 years of expertise in industrial control distribution, we are committed to reliable products and exceptional service. The 125388-01 exemplifies our dedication to quality, offering the precision and durability required for critical machinery monitoring. Contact us today to optimize your predictive maintenance strategy with this advanced keyphasor probe module.
Note: All product names, logos, and brands are property of their owners. This document is informational and does not substitute for Bently Nevada’s official technical manuals.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
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