Product Overview
When industrial machinery faces unexpected downtime due to undetected vibration anomalies, the Bently Nevada 190501-12-99-02 Velomitor CT Velocity Transducer delivers precise, real-time velocity measurements to safeguard your assets. This rugged transducer is engineered for continuous monitoring in harsh environments, providing critical data for predictive maintenance strategies.
Technical Specifications Breakdown
The 190501-12-99-02 offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate vibration velocity detection. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, with an extended range of 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB, covering a broad spectrum of machinery faults. The output bias voltage is 10.1 Vdc ± 1.0 Vdc, and the dynamic output impedance is less than 400 Ω typical. Amplitude linearity is ±2% to 63.5 mm/s pk (2.5 in/s pk), ensuring reliable readings across the measurement range. The mounted resonant frequency is 9 kHz minimum (stud mounted, except quick disconnect), minimizing resonance interference.
Industry Applications
This transducer excels in rotating machinery monitoring, such as pumps, compressors, turbines, and fans. In petrochemical plants, the 190501-12-99-02's ATEX/IECEx/CSA (Class I, Zone 0/1) certification allows safe installation in hazardous areas. Its 316L stainless steel case and 100% condensing humidity tolerance make it ideal for offshore platforms and chemical processing facilities where corrosion resistance is critical.
Installation & Setup Guidance
Mount the transducer on a clean, flat surface with a 33 mm diameter (1.3 in diameter) area. Use the provided 3/8-in 24 to M8x1 stud mounting hardware. Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). The transducer can be installed in any orientation, and polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top. The included 32-foot cable can be extended up to 305 metres (1,000 ft.) using part number 02173006 without signal degradation.
Maintenance & Reliability
Routine inspection of cable integrity and mounting torque is recommended to maintain measurement accuracy. The transducer's internal electronics are isolated from the case, reducing ground loop issues. With an operating temperature range of -40°C to +85°C (-40°F to +185°F) and a shock limit of 5000 g pk, this unit withstands severe conditions, minimizing maintenance interventions and extending service life.
Compatibility & Integration
The 190501-12-99-02 integrates seamlessly with Bently Nevada monitoring systems and most vibration data collectors. Its dynamic output impedance of <400 Ω typical ensures compatibility with standard PLC and DCS analog input modules. For hazardous area installations, follow drawing 167536 for intrinsic safety compliance (Ex ia IIC T4).
Selection Guide & Purchasing Advice
Before ordering, verify your required agency approval option (this unit has option 02: CSA/NRTL/C (Class I, Division 1), ATEX/IECEx/CSA (Class I, Zone 0/1)). Confirm cable length needs; the 32-foot cable is included. For replacement or new installations, SpareTechPLC offers genuine Bently Nevada 190501-12-99-02 units with fast shipping and expert support to ensure you get the right transducer for your application.
Frequently Asked Questions
Q: What is the sensitivity of the 190501-12-99-02?
A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.
Q: What is the operating temperature range?
A: The operating temperature range is -40°C to +85°C (-40°F to +185°F).
Q: Is this transducer intrinsically safe?
A: Yes, with agency approval option 02, it is certified CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) as Ex ia IIC T4.
Q: What is the maximum cable length?
A: The maximum cable length is 305 metres (1,000 ft.) using cable part number 02173006.
Q: What is the mounting torque specification?
A: The mounting torque is 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
