Description
1. Product Title
Bently Nevada 190501-12-00-05 – Velomitor CT Low-Frequency Piezoelectric Velocity Vibration Transducer
2. Product Overview
The 190501-12-00-05 belongs to Bently Nevada 190501 Velomitor CT series integrated piezoelectric velocity transducer, specially optimized for low-speed rotating equipment casing vibration measurement. Different from standard Velomitor sensors, it features a downward-adjusted low-frequency response curve to capture effective vibration signals from fans and blowers running as low as 90 RPM, solving the weak signal acquisition problem of slow-speed rotary machinery. It directly converts mechanical casing vibration velocity into standardized analog voltage output, and transmits vibration data of unbalance, misalignment, bearing wear and structural looseness to Bently Nevada 3500 monitoring racks, DCS and PLC protection systems. Equipped with armored heavy-duty cable structure and full electromagnetic shielding, 190501-12-00-05 resists outdoor humidity, dust, temperature fluctuation and field EMI interference, delivering stable long-distance signal transmission up to 305 meters, and forms a core measuring unit for predictive maintenance and automatic equipment trip protection of large cooling tower and heat exchanger fan systems.
3. Technical Specifications
- Brand: Bently Nevada
- Model: 190501-12-00-05
- Warranty: One Year
- Condition: 100% New & Original
- Product Series: Velomitor CT Cooling Tower Low-Frequency Velocity Transducer
- Suffix Code Definition:
- 12 = Armored integrated cable construction
- 00 = Standard mounting thread and housing configuration
- 05 = Global hazardous area safety certifications (ATEX/IECEx)
- Sensitivity: 3.94 mV/mm/s (100 mV/in/s), tolerance ±5%
- Frequency Response: 3 Hz ~ 900 Hz (±1dB); extended range 1.5 Hz ~ 1000 Hz (±3dB)
- Maximum Velocity Measurement Range: 63.5 mm/s peak
- Max Allowable Cable Length: 305 meters (1000 feet)
- Mounting Thread: Dual conversion thread (3/8″-24 UNF to M8×1.25)
- Connector Type: MIL-C-5015 industry locking aviation plug
- Output Impedance: Less than 400 Ω
- Linear Error: ±1% full scale
- Operating Temperature: -40°C to +85°C continuous working
- Housing Material: Corrosion-resistant 304 stainless steel
- Protection Rating: IP67 for outdoor wet and dusty environment
- Total Net Weight: Approx 0.16 kg
- Compatible Monitoring System: Bently Nevada 3500 series machinery protection rack
4. Application Scenarios
- Power Plant Cooling Tower Fan Monitoring: Installed on large cooling tower induced draft fans and forced draft fans in thermal power stations to measure low-frequency casing vibration, early warning of blade imbalance, bearing failure and support structure loosening.
- Petrochemical Air-Cooled Heat Exchanger Units: Deployed on outdoor air cooler fan assemblies in refineries and chemical plants, realizing long-distance vibration signal collection under corrosive, high-humidity and explosive hazardous conditions.
- Heavy Industrial Ventilation & Exhaust Equipment: Applied on large workshop axial fans, induced draft blowers and waste gas treatment rotary fans in metallurgy and cement industries, supporting real-time condition monitoring and safety interlock shutdown logic execution.
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