Product Overview

The 190501-01-99-01 is a specialized Velomitor CT (Cooling Tower) velocity transducer engineered specifically for seismic vibration monitoring on low-speed rotating machinery. Utilizing advanced piezo-velocity technology, this sensor converts mechanical casing vibration into a proportional voltage signal. Unlike standard velocity sensors, the CT (Cooling Tower) variant is optimized to capture high-fidelity data from assets operating at frequencies as low as 1.5 Hz (90 RPM). This model is distinctive for its factory-integrated 32-foot (9.8 meter) cable, providing a continuous, moisture-resistant signal path from the sensor head to the junction box, which is vital for the saturated environments of industrial cooling cells.

Key Technical Characteristics and Hardware Parameters

Designed for maximum survivability and precision, the 190501-01-99-01 combines a solid-state internal integrator with a ruggedized exterior.

• Model Identification 190501-01-99-01

• Transducer Type Piezo-velocity (Internal solid-state integration)

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

   

• Sensitivity 3.94 mV/mm/s (100 mV/in/s) ±10%

   

• Integrated Cable 32-foot (9.8m) shielded cable (Option -99)

• Mounting Interface 1/4-28 UNF Stud (Option -01)

• Agency Approvals China (CN) regional certification (Option -01)

• Temperature Tolerance -40°C to +85°C (-40°F to +185°F)

   

• Enclosure Material 316L Stainless Steel, hermetically sealed

   

• Dimensions 33 mm Diameter x 82 mm Height (Transducer Body)

   

Industrial Applications

The 190501-01-99-01 is the industry standard for monitoring the mechanical health of cooling tower fans and air-cooled heat exchangers (fin-fans). Because these assets typically rotate at very low speeds, traditional sensors often fail to provide accurate amplitude data. This Velomitor CT excels in:

• Cooling Tower Diagnostics Identifying imbalance, blade pitch issues, and misalignment in fan motors and speed reducers.

• Low-Speed Gearbox Monitoring Capturing vibration signatures from gear teeth and bearings in slow-moving industrial transmission units.

• Predictive Maintenance Providing the precise seismic data required for automated machinery protection loops in power generation and petrochemical facilities.

   

• Harsh Environment Protection Utilizing its 316L stainless steel housing and integrated cable to prevent ingress in 100% condensing humidity environments.

By delivering stable velocity signals directly to Bently Nevada 3500/42M or 1900/65A monitors, this transducer ensures that slow-moving critical assets are protected from catastrophic structural failure.