Product Introduction
When rotating machinery vibration threatens uptime, the Bently Nevada 190501-12-99-00 delivers precise velocity measurement for predictive maintenance. This Velomitor CT velocity transducer, made in the U.S.A., converts mechanical vibration into an electrical signal, enabling early detection of bearing wear, unbalance, and misalignment.
Engineered for industrial environments, the 190501-12-99-00 features a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate, repeatable readings. Its rugged 316L stainless steel case and internal electronics isolated from the case provide durability and noise immunity.
Technical Specifications
| Parameter |
Value |
| Sensitivity |
3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency Response |
3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB; 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB |
| Operating Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Storage Temperature |
-40°C to +100°C (-40°F to +212°F) |
| Shock Limit |
5000 g pk, maximum |
| Output Bias Voltage |
10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B |
| Dynamic Output Impedance |
<400 Ω typical |
| Broadband Noise |
0.229 mm/s (0.009 in/s) pk |
| Base Strain Sensitivity |
0.43 mm/s/μstrain (0.017 in/s/μstrain) |
| Maximum Cable Length |
305 metres (1,000 ft.) of cable (part number 02173006) |
| Weight |
<297 g (10.5 oz.), typical |
| Mounting Surface |
33 mm diameter (1.3 in diameter) |
| Height |
82 mm (3.2 in) |
| Case Material |
316L stainless steel |
| Connector |
2-pin 316L stainless steel MIL-C5015, top |
| Mounting Torque |
4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) |
These specifications ensure reliable performance across demanding applications. The 190501-12-99-00 operates over a wide temperature range and withstands high shock, making it suitable for harsh industrial settings.
Industry Applications
The Bently Nevada 190501-12-99-00 is ideal for vibration monitoring on rotating machinery such as pumps, motors, fans, and turbines. Its frequency response covers typical machine vibration frequencies, enabling effective condition monitoring.
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Pumps and Compressors: Detect imbalance and bearing faults early to prevent unplanned downtime.
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Electric Motors: Monitor vibration levels to ensure smooth operation and extend motor life.
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Generators and Turbines: Provide continuous velocity data for predictive maintenance programs.
With its 32-foot cable (connection option 99), installation is straightforward even in remote locations.
Installation & Setup Guidance
Proper mounting is critical for accurate measurements. The 190501-12-99-00 uses a plate stud 3/8-in 24 to M8x1 mounting hardware option. Ensure the mounting surface is clean, flat, and free of paint or debris. Tighten the stud to the specified torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) to achieve a rigid connection.
Mount the transducer in any orientation, but ensure the cable is routed away from moving parts and potential pinch points. For best results, avoid mounting on thin or flexible surfaces that could dampen vibration signals.
Maintenance & Reliability
Routine maintenance is minimal. Periodically check the mounting integrity and cable condition for wear or damage. The all-welded 316L stainless steel construction resists corrosion, and the internal electronics are isolated from the case, reducing the risk of ground loops.
Environmental limits include 100% condensing humidity (non-submerged) and magnetic field susceptibility below 0.0068 mm/s/gauss @ 50 gauss, 50-60Hz. These features ensure long-term reliability in challenging conditions, reducing total cost of ownership.
Selection Guide & Purchasing Advice
Before ordering, verify your required mounting option and cable length. The 190501-12-99-00 includes a 32-foot cable; for longer runs, up to 305 meters (1,000 ft.) of cable (part number 02173006) can be used without signal degradation. Confirm your agency approval needs—this model has no approvals (option 00).
When sourcing industrial automation parts, trust PLC Source PRO for genuine components and reliable service. Ensure the part number matches your exact requirement to avoid compatibility issues.