Bently Nevada 190501-12-99-00 Velomitor CT Velocity Transducer

Description

Designed specifically for low-speed machinery monitoring in demanding environments, the 190501-12-99-00 operates as a specialized Velomitor CT (Cooling Tower) velocity transducer. This sensor is engineered to detect progressive mechanical failures in cooling tower fans, wet-area air handlers, and similar low-frequency rotating equipment. By converting casing vibration into a proportional electrical signal, it allows predictive maintenance systems to track machinery health before catastrophic breakdown occurs.

This specific configuration of the Bently Nevada 190501 series includes an integrated 32-foot (9.7-meter) cable directly attached to the sensor body, minimizing connection points and reducing the risk of moisture ingress in humid cooling tower environments. Grounded in a robust, hermetically sealed housing, the unit utilizes solid-state electronics to maintain high accuracy and long-term stability without the moving parts common in traditional velocity sensors.

Features

• Low-Frequency Optimization: Specifically tuned for cooling tower applications and slow-turning fan assemblies.
• Integrated Connection: Equipped with a pre-installed, heavy-duty 32-foot cable to eliminate field termination issues and resist moisture penetration.
• Rugged Mounting: Supplied with a robust plate stud mounting adapter (3/8-inch 24 to M8x1 thread) for secure machinery casing attachment.
• Hermetic Seal: Solid-state design enclosed in a corrosion-resistant housing suitable for high-humidity and wet environments.
• Direct PLC/DCS Integration: Provides compatible vibration velocity outputs directly to Bently Nevada monitors or general-purpose process control systems.

Applications

• Cooling tower fan gearboxes and driver shafts
• Industrial air handling units and HVAC blowers
• Low-speed water treatment pumps and agitators
• Pulp and paper mill wet-end machinery

Technical Specifications

Installation Guidelines

For optimal low-frequency performance and mechanical coupling, mount the 190501-12-99-00 onto a flat, clean surface machined to match the plate stud mounting footprint. Ensure the mounting surface is free of paint, scale, and surface irregularities. Tighten the sensor to the specified torque using standard hand tools; overtightening may damage the internal solid-state components. Route the 32-foot integrated cable away from high-voltage conduit and secure it using non-corrosive cable ties to prevent cable slap or strain-induced signal noise.