BENTLY 125840-02

Description

Detailed parameter table

BENTLY 125840-02

Product introduction

The 125840-02 from Bently Nevada is a precision-engineered sensor adapter cable, designed to provide seamless connectivity between industrial vibration sensors, proximity probes, and monitoring equipment in machinery protection systems. As a specialized interface component in Bently Nevada’s ecosystem, the 125840-02 bridges the connection gap between field sensors—such as the 330106-05-30-10-02-CN velocity sensor—and data acquisition modules or signal conditioners, ensuring reliable signal transmission in industrial environments.

Featuring a 2m shielded cable with industry-standard connectors, the 125840-02 is specifically engineered to maintain signal integrity during the critical transition between sensor outputs and monitoring system inputs. Its compact design and specialized connector configuration make it ideal for retrofitting existing systems or integrating new sensors into diverse monitoring setups. Whether deployed in power generation, manufacturing, or oil and gas facilities, the 125840-02 ensures consistent, noise-free data transfer between sensors and monitoring equipment.

Core advantages and technical highlights

Precision connectivity: The 125840-02 features a specialized connector configuration (MIL-C-5015 to D-sub 9-pin) that ensures proper pin alignment and signal matching between sensors and monitoring systems. This precision-engineered interface eliminates signal loss or corruption at connection points, maintaining the integrity of critical vibration and position data. The adapter’s construction ensures consistent electrical performance across its operating range, preventing measurement errors that could compromise machinery health monitoring.

Enhanced noise protection: Equipped with double shielding (foil + braid) and twisted-pair conductors, the 125840-02 provides excellent resistance to electromagnetic interference (EMI) and radio frequency interference (RFI). This shielding is particularly important for adapter cables that often bridge between different equipment enclosures, where interference risks are heightened. The 100% coverage shielding ensures that even weak sensor signals remain unaffected by electrical noise from nearby equipment.

Industrial durability: The 125840-02 is built to withstand harsh industrial conditions, with an FEP jacket and PTFE insulation that operate reliably from -54°C to 150°C. This temperature range allows installation in both heated machinery areas and cold utility spaces. The cable’s rugged connectors feature secure locking mechanisms that prevent accidental disconnection, even in vibration-prone environments, ensuring continuous data transmission.

Typical application scenarios

In combined cycle power plants, the 125840-02 serves as the critical link between proximity probes on gas turbine shafts and vibration monitoring modules in control cabinets. Its compact 2m length is ideal for connecting sensors mounted directly on machinery to nearby monitoring equipment, reducing cable clutter in turbine enclosures. The adapter’s noise immunity prevents interference from generator systems, ensuring accurate transmission of shaft vibration data used for early fault detection.

Within chemical processing facilities, the 125840-02 connects accelerometers on reactor agitators to portable data collectors during periodic machinery inspections. Its rugged connectors withstand repeated mating cycles during temporary measurement setups, while the chemical-resistant jacket protects against occasional exposure to process fluids or cleaning agents. The adapter’s reliable performance ensures consistent data collection for trend analysis and maintenance planning.

In automotive manufacturing plants, the 125840-02 integrates vibration sensors on production line robots with quality control monitoring systems. Its compact design fits in the tight spaces between robotic components, while the shielding prevents interference from variable frequency drives and motor controllers. The adapter’s secure connections ensure uninterrupted data flow for detecting abnormal vibration patterns that could indicate impending robot failures.

BENTLY 125840-02

Related model recommendations

125840-01: A 1m shorter variant of the 125840-02, ideal for extremely compact installations where minimal cable length is required.

125840-03: A 5m longer version of the 125840-02, providing extended reach for connecting sensors to remotely located monitoring equipment.

330106-05-30-10-02-CN: A velocity sensor commonly paired with the 125840-02 for vibration monitoring applications.

125768-01: A signal conditioner that receives input via the 125840-02 from vibration sensors and accelerometers.

129478-01: A longer sensor cable that connects to the 125840-02 for extended sensor installations.

133292-01: A junction box compatible with the 125840-02 for centralized sensor connection management.

330180-91-CN: A calibration tool that uses the 125840-02 to connect with sensors during calibration procedures.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the 125840-02, ensure both connection points (sensor and monitoring equipment) are powered down to prevent electrical damage. Verify that the adapter’s connectors match both the sensor output and monitoring system input requirements. Route the cable to avoid sharp edges, moving parts, and high-temperature surfaces (>150°C). Maintain the minimum bend radius (10mm static, 20mm dynamic) to prevent conductor or shielding damage.

Connection procedure: Mate the MIL-C-5015 connector to the sensor output first, ensuring proper alignment and securing the bayonet coupling until it clicks. Connect the D-sub 9-pin connector to the monitoring system input, ensuring the connector latch engages fully. Avoid twisting or pulling the cable during connection to prevent strain on the conductors. After connection, verify proper signal transmission using the monitoring system’s diagnostic tools.

Maintenance suggestions: Inspect the 125840-02 quarterly for signs of jacket damage, connector corrosion, or bent pins. Clean connectors with a dry, lint-free cloth before disconnecting or reconnecting. Check for secure connections during routine maintenance, as vibration can gradually loosen connectors over time. If the cable or connectors show signs of damage, replace with a genuine Bently Nevada adapter—repairing connectors can compromise signal integrity. Store spare adapters in a clean, dry environment away from extreme temperatures.

Service and guarantee commitment

The 125840-02 is backed by a 2-year warranty covering defects in materials and workmanship under normal operating conditions. Bently Nevada’s global technical support team provides expert guidance on adapter selection, installation, and troubleshooting, with 24/7 availability for critical system inquiries.

We offer detailed compatibility guides for the 125840-02, ensuring proper matching with sensors and monitoring equipment. Technical documentation includes wiring diagrams and installation best practices to maximize performance and service life. For customers requiring custom adapter solutions, our engineering team can develop specialized configurations for unique connectivity challenges. Backed by Bently Nevada’s expertise in industrial sensor connectivity, the 125840-02 delivers reliable interface performance you can trust in critical machinery monitoring applications.