Product Overview
When machinery vibration threatens production uptime, the Bently Nevada 190501-09-00-CN Velomitor CT Velocity Transducer delivers precise, reliable measurements. This rugged sensor monitors velocity in rotating equipment, helping prevent costly failures. Designed for industrial environments, it provides consistent performance across a wide temperature range.
Technical Specifications Breakdown
The 190501-09-00-CN offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) with ±5% accuracy. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) within ±1.0 dB, extending to 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) at ±3.0 dB. This range covers common vibration frequencies in pumps, motors, and compressors. The output bias voltage is 10.1 Vdc ± 1.0 Vdc, with a dynamic output impedance below 400 Ω typical. Amplitude linearity remains within ±2% up to 63.5 mm/s pk (2.5 in/s pk).
Industry Applications
In petrochemical plants, the 190501-09-00-CN monitors critical rotating assets like centrifugal pumps and fans. Its 3.0 Hz to 900 Hz frequency response captures both low-speed and high-speed vibration components. For power generation, this transducer tracks turbine shaft vibrations, where the mounted resonant frequency of 9 kHz minimum ensures accurate readings without structural interference. The 316L stainless steel case withstands corrosive atmospheres.
Installation & Setup Guidance
Mount the transducer using the 3/8-in 24 to 1/4-in NPT plate stud. Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). The device accepts any orientation, simplifying placement. Use the MIL-C-5015 connection interface and cable part number 02173006 for runs up to 305 metres (1,000 ft.) without signal degradation. Ensure Pin A connects to positive signal and Pin B to ground, as polarity is defined when velocity moves from base to top.
Maintenance & Reliability
Regularly inspect the transducer and cable for physical damage. The internal electronics are isolated from the case, reducing ground loop issues. Operating temperature range is -40°C to +85°C (-40°F to +185°F), with storage capability to +100°C (+212°F). The unit withstands 5000 g pk shock and 100% condensing humidity (non-submerged). Magnetic field susceptibility is below 0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz.
Comparison with Similar Products
Compared to standard accelerometers, the Velomitor CT provides direct velocity output without integration, simplifying signal processing. Unlike piezoelectric velocity sensors, this model offers a broad frequency response from 1.5 Hz to 1.0 kHz and a low base strain sensitivity of 0.43 mm/s/μstrain (0.017 in/s/μstrain). Its 316L stainless steel construction outperforms aluminum-housed sensors in corrosive environments.
Selection Guide & Purchasing Advice
Before ordering, verify the mounting hardware option (09 plate stud) and connection option (00 MIL-C-5015) match your system. The CN agency approval option indicates country-specific certification. Contact SpareTechPLC to confirm current lifecycle status and availability. This transducer weighs 0.297 kg and measures 82 mm in height with a 33 mm mounting surface diameter.
Frequently Asked Questions
What is the sensitivity of the 190501-09-00-CN?
The sensitivity is 3.94 mV/mm/s (100 mV/in/s) with ±5% tolerance.
What is the maximum cable length?
You can use up to 305 metres (1,000 ft.) of cable part number 02173006 without signal degradation.
Is the transducer intrinsically safe?
Agency approval options 01 through 04 include intrinsic safety ratings Ex ia IIC T4 and non-incendive Ex nL IIC T4. Verify your specific unit's approval.
What is the operating temperature range?
The operating temperature range is -40°C to +85°C (-40°F to +185°F).
How do I mount the transducer?
Use the 3/8-in 24 to 1/4-in NPT plate stud and tighten to 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). Any orientation is acceptable.
