BENTLY 129478-01

Description

Detailed parameter table

BENTLY 125768-01

Product introduction

The 129478-01 from Bently Nevada is a high-performance sensor cable assembly, engineered to provide reliable signal transmission between industrial vibration sensors, proximity probes, and monitoring systems. As a critical connectivity component in Bently Nevada’s machinery monitoring ecosystem, the 129478-01 serves as the vital link between field sensors—like the 330106-05-30-10-02-CN velocity sensor—and signal conditioners or monitoring modules, ensuring pristine data transfer in harsh industrial environments.

Designed specifically for demanding applications, the 129478-01 features a 10m shielded cable with rugged MIL-C-5015 connectors, optimized to preserve signal integrity over extended distances. Its robust construction makes it compatible with both vibration sensors and proximity probes, providing versatile connectivity in power generation, oil and gas, and manufacturing facilities. By maintaining signal purity even in electrically noisy and thermally extreme environments, the 129478-01 plays a crucial role in ensuring accurate machinery health monitoring.

Core advantages and technical highlights

Extreme environment resilience: The 129478-01 is built to withstand the harshest industrial conditions, with an FEP jacket and PTFE insulation that operate reliably from -54°C to 204°C. This temperature range makes it suitable for installations near high-heat equipment like steam turbines and furnaces, as well as in cold environments such as cryogenic processing facilities. The cable’s pressure rating of 10,000 psi further extends its applicability to high-pressure systems like hydraulic machinery and subsea equipment.

Superior noise immunity: Equipped with triple shielding (foil, braid, and drain wire) and twisted-pair conductors, the 129478-01 provides exceptional resistance to electromagnetic interference (EMI) and radio frequency interference (RFI). This shielding configuration ensures that weak sensor signals remain unaffected by nearby motors, variable frequency drives, or power lines—critical for maintaining measurement accuracy in electrically dense industrial settings. The 100% coverage shielding minimizes signal loss even over the 10m cable length.

Ruggedized connectivity: The 129478-01 features MIL-C-5015 connectors renowned for their durability in vibration-prone environments. These connectors provide a secure, moisture-resistant seal that prevents dust, liquids, and contaminants from compromising signal transmission. Their bayonet locking mechanism ensures a consistent, low-resistance connection that withstands constant machinery vibration, reducing the need for maintenance reconnections.

BENTLY 125760-01

Typical application scenarios

In gas turbine power plants, the 129478-01 connects vibration sensors on turbine casings to monitoring systems located in control rooms. Its high-temperature tolerance allows installation near turbine exhaust sections, while the triple shielding protects against EMI from generator systems. The 10m length provides flexibility in routing around turbine components, ensuring sensors can be placed at optimal measurement points while keeping monitoring equipment in cooler environments.

Within offshore oil platforms, the 129478-01 links proximity probes on subsea pump motors to topside monitoring systems. Its corrosion-resistant materials withstand salt spray and humidity, while the rugged connectors maintain integrity despite constant platform vibration. The cable’s EMI resistance is particularly valuable in this environment, where numerous electrical systems operate in close proximity to machinery monitoring sensors.

In steel manufacturing facilities, the 129478-01 connects accelerometers on rolling mill motors to signal conditioners like the 125768-01. Its robust construction withstands the dust, vibration, and temperature fluctuations typical in steel production, while the shielding prevents interference from large motors and arc furnaces. The cable’s flexibility allows installation in tight spaces between machinery components, ensuring critical vibration data reaches monitoring systems uncorrupted.

Related model recommendations

129478-02: A 5m shorter variant of the 129478-01, ideal for compact machinery installations where shorter cable runs are sufficient.

129478-03: A 15m longer version of the 129478-01, providing extended reach for large-scale industrial equipment.

330106-05-30-10-02-CN: A velocity sensor commonly paired with the 129478-01 for vibration monitoring applications.

330130-080-00-CN: A proximity probe that uses the 129478-01 for reliable signal transmission to monitoring systems.

125768-01: A signal conditioner that receives input via the 129478-01 from vibration sensors and accelerometers.

133292-01: A junction box compatible with the 129478-01 for centralized sensor connection management.

330180-91-CN: A calibration tool used to verify signal integrity through the 129478-01 cable assembly.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the 129478-01, plan the cable route to avoid sharp edges, excessive bending, or contact with high-temperature surfaces (>204°C). Ensure the minimum bend radius (15mm static, 30mm dynamic) is maintained to prevent conductor damage. Use cable clamps to secure the cable at 50cm intervals, avoiding tension on the connectors. When mating connectors, align pins carefully to prevent bending, and tighten the bayonet coupling until it clicks to ensure a proper seal. Ground the cable shield at both ends through the connector backshells.

Maintenance suggestions: Inspect the 129478-01 quarterly for signs of jacket damage, connector corrosion, or shielding exposure. Clean connectors with a dry, lint-free cloth before reconnecting to remove debris. Check for cable slack or excessive movement that could cause fatigue over time. If the cable is damaged, replace it with a genuine Bently Nevada assembly—splicing is not recommended as it compromises shielding integrity. Store spare cables in a dry environment at room temperature, avoiding prolonged exposure to sunlight or chemicals that could degrade the jacket material.

Service and guarantee commitment

The 129478-01 is backed by a 3-year warranty covering defects in materials and workmanship under normal operating conditions. Bently Nevada’s global technical support team provides expert guidance on cable routing, installation, and troubleshooting, with 24/7 availability for critical system inquiries.

We offer detailed installation guides specific to the 129478-01, including recommendations for optimal routing and connector maintenance to maximize service life. For customers requiring custom lengths or configurations, our engineering team can provide tailored solutions for specific applications. Backed by Bently Nevada’s decades of expertise in industrial connectivity, the 129478-01 delivers reliable signal transmission you can trust to protect your machinery monitoring investments.