Product Overview

The 190501-06-00-00 is a high-precision Velomitor CT (Cooling Tower) velocity transducer manufactured by Bently Nevada. This piezo-velocity sensor is specifically engineered to address the challenges of monitoring low-speed machinery, particularly cooling tower fans and air-cooled heat exchangers. By utilizing a solid-state piezoelectric design, it eliminates the mechanical wear common in traditional moving-coil sensors, offering a more durable and reliable solution for casing vibration measurement.

This transducer excels at capturing seismic vibration data from equipment rotating as slowly as 90 rpm. It effectively bridges the gap between standard accelerometers and traditional velocity sensors, providing the sensitivity required to detect mechanical looseness, imbalance, and structural resonances in large-scale slow-speed industrial fan assemblies.

Key Technical Characteristics

The Velomitor CT 190501-06-00-00 is distinguished by its ability to perform in saturated, corrosive, and high-moisture environments. Its core design features facilitate seamless integration into existing plant monitoring architectures.

• Low-Frequency Accuracy: Optimized for machinery speeds between 100 and 300 rpm, ensuring high-fidelity data collection where conventional sensors often fail to provide usable signals.

• Broad Fault Coverage: The sensor architecture allows for the detection of both primary fan pass frequencies and higher-frequency anomalies originating from gearboxes and motor bearings.

• Ruggedized Construction: Encased in 316L stainless steel and hermetically sealed, the unit is immune to the humidity and chemical exposure prevalent in cooling tower cells.

• Piezo-Velocity Technology: Internal integration electronics convert the piezoelectric acceleration signal into a velocity output, providing a more stable and frequency-independent measurement than mechanical pickups.

• Standardized Installation: Features a 1/2-20 UNF mounting thread and a 2-pin MIL-C-5015 connector, making it compatible with industry-standard cabling and mounting hardware.

Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Number: 190501-06-00-00

• Sensor Architecture: Piezo-velocity (Solid-state)

• Frequency Response: 1.5 Hz to 1.0 kHz (90 cpm to 60,000 cpm) ±3.0 dB

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%

• Measurement Range: 127 mm/s (5.0 in/s) peak velocity

• Mounting Interface: 1/2-20 UNF threaded hole

• Operating Temperature: -40°C to +85°C

• Housing Material: Corrosion-resistant 316L Stainless Steel

• Weight: Approximately 0.06 kg (head only)

• Dimensions: 1.8 cm x 1.6 cm x 12.3 cm

Industrial Applications

The 190501-06-00-00 transducer is the primary choice for predictive maintenance on slow-speed rotating assets. Its deployment is critical for:

• Cooling tower fan structural monitoring

• Fin-fan air-cooled heat exchanger vibration analysis

• Large-diameter HVAC and ventilation systems

• Low-speed mixers and industrial agitators