Company Introduction: We offer a one-year warranty and free replacement service：
Xiamen Xiongba E-commerce Co., Ltd. Branch specializes in the field of industrial automation, focusing on the sales of Distributed Control Systems (DCS), robot systems, and modules and spare parts for large-scale servo control systems. Our business covers a wide range of industrial automation products, including PLCs, MOTOROLA MVME industrial modules, Anybus communication converters, RTU remote modules, industrial PCs, low-frequency industrial displays, and SCSI human-machine interfaces. With over a decade of industry experience, Xiongba has grown into a global supplier of industrial automation spare parts. We source directly from overseas, offering products and parts from multiple countries and manufacturers. This helps solve customers' procurement challenges, ensures product quality, and provides a significant price advantage.
Product Overview
The 125388-01H is a high-performance extension cable assembly from Bently Nevada, specifically designed to connect proximity probes to monitoring system interfaces in machinery protection setups. Its core function is to transmit analog signals from sensors—such as those measuring shaft vibration, axial position, or rotational speed—over extended distances without signal degradation, ensuring that critical data reaches the monitoring system with precision.
As an essential link in Bently Nevada’s machinery protection ecosystem, the 125388-01H addresses the challenge of long-distance signal transmission in industrial environments, where probe placement near machinery and system interfaces in control rooms may be separated by significant distances. What makes it valuable is its robust construction, which minimizes interference from electrical noise and environmental factors, ensuring signal integrity. The 125388-01H is not merely a cable but a reliability enhancer, ensuring that monitoring systems receive accurate data to enable timely fault detection and prevention.
Technical Specifications
| Parameter |
Value |
| Product Model |
125388-01H |
| Manufacturer |
Bently Nevada |
| Product Type |
Proximity Probe Extension Cable Assembly |
| Length |
5 meters |
| Connector Type |
Bently Nevada proprietary bayonet connectors (male/female) |
| Conductor Gauge |
22 AWG (stranded) |
| Insulation Material |
Fluoropolymer (FEP) |
| Shielding |
Double-shielded (foil + braid) |
| Operating Temperature Range |
-55°C to 200°C |
| Voltage Rating |
300V AC/DC |
| Compatibility |
Bently Nevada 3300, 3500, and 3700 Series Proximity Probes |
| Compliance |
RoHS, UL Recognized |
Key Features and Benefits
The 125388-01H stands out for its double-shielded design, combining foil and braided shielding to block electromagnetic interference (EMI) and radio-frequency interference (RFI)—common in industrial environments with motors, drives, or high-voltage equipment. This ensures that weak analog signals from proximity probes remain uncorrupted, preserving the accuracy of vibration and position measurements critical for machinery health monitoring.
Its fluoropolymer insulation offers exceptional resistance to high temperatures, chemicals, and abrasion, making the 125388-01H suitable for harsh settings like refineries, power plants, and chemical facilities where exposure to oils, solvents, or extreme heat is common. This durability extends the cable’s lifespan, reducing replacement frequency and maintenance costs.
The cable’s precise bayonet connectors provide a secure, vibration-resistant fit, preventing accidental disconnections that could interrupt monitoring. Additionally, the stranded 22 AWG conductors offer flexibility, simplifying routing around machinery and through tight spaces without compromising signal transmission. Together, these features make the 125388-01H a reliable solution for maintaining signal integrity in extended machinery monitoring setups.
Application Scenarios
The 125388-01H is widely used in industries where proximity probes are positioned far from monitoring systems, requiring reliable long-distance signal transmission. In combined-cycle power plants, it connects 3300 Series proximity probes on gas turbine shafts to 3500 monitoring racks located in control rooms, often 5 meters away. This ensures that critical shaft vibration data reaches the system without distortion, enabling early detection of imbalance or bearing wear.
In offshore oil platforms, the 125388-01H links subsea pump proximity probes to topside 3700 monitoring systems. Its chemical-resistant insulation and high-temperature rating withstand exposure to seawater, hydrocarbons, and fluctuating temperatures, ensuring uninterrupted data flow.
In pulp and paper mills, the cable connects proximity probes on dryer cylinder rolls to 3500 systems in control enclosures, routing through areas with high humidity and particulate matter. Its rugged construction prevents signal loss, ensuring that subtle changes in roll rotation are captured, avoiding costly paper breaks or equipment damage.
Related Models
125388-01G – 3-meter variant of the 125388-01H, ideal for shorter distance applications between probes and monitoring interfaces.
125388-01J – 10-meter version, offering extended reach for larger industrial setups where greater separation is needed.
125389-01H – Single-shielded alternative to the 125388-01H, suitable for low-interference environments.
3301-08 – Bently Nevada proximity probe commonly paired with the 125388-01H for shaft position monitoring.
125388-02H – Right-angle connector variant of the 125388-01H, designed for tight installation spaces.
125387-01H – Previous generation cable with similar length but standard insulation, compatible with older monitoring systems.
3500/20 – 3500 Series signal conditioner that receives data via the 125388-01H from connected probes.
Installation and Maintenance
Installation of the 125388-01H requires careful handling to avoid damaging the shielding or connectors; avoid sharp bends (minimum bend radius: 50mm) and ensure connectors are fully seated and locked to prevent signal loss. Route the cable away from high-voltage lines or motor cables to minimize EMI, and secure it with non-metallic clips to reduce vibration-induced wear. Verify compatibility with connected probes and monitoring modules before installation to ensure proper signal transmission.
For maintenance, inspect the
125388-01H quarterly for signs of insulation damage, shield breaks, or loose connectors. Clean connectors with a dry cloth to remove dust or debris that could impede conductivity. Replace the cable if insulation is cracked or shielding is exposed, typically every 7-10 years depending on environmental conditions. Regularly check signal integrity via the monitoring system to confirm the cable is functioning correctly.
Product Warranty
The 125388-01H is backed by a one-year warranty from Xiamen Xiongba E-commerce Co., Ltd. Branch, covering manufacturing defects and performance issues under normal operating conditions. During this period, we provide free replacement service for any cable that fails to meet specified standards, ensuring minimal disruption to your machinery monitoring systems. Our technical team, with over a decade of industrial automation experience, offers guidance on installation, compatibility checks, and troubleshooting. This warranty reflects our confidence in the 125388-01H’s durability and our commitment to delivering reliable components for critical machinery protection setups.
