Product Overview

The 190501-12-00-00 is a high-precision Velomitor CT (Cooling Tower) velocity transducer engineered by Bently Nevada specifically for low-speed machinery. This piezo-velocity sensor converts casing vibration into a proportional voltage signal, allowing for the continuous monitoring of balance and structural integrity on large-scale fans. Unlike standard accelerometers, the Velomitor CT is optimized for the unique frequency signatures of slow-rotating equipment, ensuring that subtle mechanical faults are detected before they lead to catastrophic failure. It provides a rugged, solid-state solution for machinery protection systems where traditional velocity sensors might lack the necessary low-end sensitivity.

Critical Performance Parameters

The unit is designed for internal integration with monitoring racks such as the 3500 Series, providing a seamless data stream for vibration analysis. Its hermetically sealed housing ensures longevity in the high-humidity environments typical of cooling tower cells.

Industrial Deployment Context

This transducer is the industry standard for assets where rotational speeds are significantly lower than standard electric motors. Its primary field applications include:

• Cooling Tower Fans: Monitoring the low-frequency vibrations of fan decks and gearboxes in power plants and HVAC systems.

• Air-Cooled Heat Exchangers (Fin-Fans): Detecting blade imbalances or drive shaft misalignments in petrochemical air coolers.

• Slow-Speed Gearboxes: Tracking casing vibration to identify gear mesh issues in heavy industrial transmissions.

• Predictive Maintenance: Providing essential data for the 3500/42M or 3500/44M monitors to trigger alarms and machine trips based on velocity thresholds.

• TSI Integration: Serving as a primary sensor for Turbine Supervisory Instrumentation where secondary casing measurements are required for holistic asset health assessment.