Description

The Bently Nevada 190501-04-00-04 is a specialized Velomitor CT (Cooling Tower) Velocity Transducer. This device is an integrating piezoelectric accelerometer with internal electronics, engineered specifically for low-frequency vibration monitoring. It is optimized for measuring casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 RPM. Its robust design allows it to capture vibration amplitudes from the fan motor and speed reducer effectively.

Features

• Low-frequency vibration monitoring capability.
• Designed for casing vibration velocity measurement.
• Optimized for cooling tower and air-cooled heat-exchanger fan assemblies.
• Constructed from durable 316L stainless steel.
• Integrated electronics for direct velocity output.
• CSA/NRTL/C hazardous area approval rating.

Applications

• Power Generation: Monitoring of cooling tower fans in fossil and hydro plants.
• Petrochemical & Refining: Critical monitoring for fin-fan assemblies.
• Chemical Manufacturing: Vibration analysis for agitators, mixers, and slow-speed reactor cooling systems.
• Mining & Mineral Processing: Ventilation fan monitoring.
• Pulp & Paper: Slow-speed fans and wastewater aerators.

Technical Specifications

Installation Guidelines

• Mounting Surface: Ensure the mounting surface is flat, clean, and at least 33 mm (1.3 inches) in diameter to ensure proper coupling.
• Torque Requirement: Tighten the sensor to 4.5 N-m +/- 0.6 N-m (40 in-lbf +/- 5 in-lbf).
• Orientation: The transducer can be mounted in any orientation, though it is recommended to align it with the primary direction of the vibration being monitored (radial or axial).
• Handling: As a precision instrument, handle with care to avoid damage to the piezoelectric element. Ensure the electrical connector is properly seated and protected from environmental ingress.

FAQ

What is the Bently Nevada 190501-04-00-04?

It is a Velomitor CT (Cooling Tower) Velocity Transducer, a type of integrating piezoelectric accelerometer designed for measuring casing vibration on cooling towers and air-cooled heat exchanger fan assemblies.

What is the minimum operating speed for this transducer?

The sensor is designed for fans operating at or above 90 RPM.

What is the operating temperature range?

The operating temperature range is -40 degC to +85 degC (-40 degF to +185 degF).