Product Overview
In the evolution of industrial machinery monitoring, accurate vibration measurement has become critical for predictive maintenance and asset protection. The Bently Nevada 190501-11-00-04 Velomitor CT Velocity Transducer addresses this need with a reliable, high-performance solution for harsh environments. This transducer converts mechanical velocity into an electrical signal, enabling early detection of rotating equipment faults.
Technical Specifications Breakdown
The 190501-11-00-04 delivers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring precise measurement across a wide frequency range. 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. The output bias voltage is 10.1 Vdc ± 1.0 Vdc, referenced from Pin A to Pin B. This transducer operates reliably from -40°C to +85°C and stores safely from -40°C to +100°C. The dynamic output impedance is less than 400 Ω typical, and the broadband noise floor is just 0.229 mm/s (0.009 in/s) pk.
Industry Applications
This velocity transducer excels in monitoring critical rotating machinery such as turbines, compressors, and pumps. In petrochemical plants, the 190501-11-00-04 provides early warning of bearing wear or imbalance, reducing unplanned downtime. Its ATEX/IECEx/CSA (Class I, Division 1) and CSA/NRTL/C (Class I, Division 1) approvals make it suitable for hazardous areas. The 316L stainless steel case and 2-pin MIL-C-5015 connector ensure durability in corrosive environments.
Installation & Setup Guidance
Mount the transducer using the included 3/8-in 24 to 1/4-in 28 stud plate option. 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 the internal electronics are isolated from the case to prevent ground loops. Use cable part number 02173006 for runs up to 305 metres (1,000 ft.) without signal degradation.
Maintenance & Reliability
Regular inspection of the mounting surface and connector integrity is recommended. The 190501-11-00-04 withstands shock up to 5000 g pk and operates in 100% condensing humidity (non-submerged). Its magnetic field susceptibility is less than 0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz. With no moving parts, this transducer offers long-term reliability in continuous monitoring applications.
Selection Guide & Purchasing Advice
Before purchasing, verify the agency approval option (04 includes CSA/NRTL/C and ATEX/IECEx/CSA certifications) and mounting hardware (option 1). The 190501-11-00-04 weighs 0.297 kg and has a height of 82 mm (3.2 in). Contact SpareTechPLC for current availability and lifecycle status, as this model may be subject to obsolescence. SpareTechPLC provides genuine Bently Nevada parts with fast global shipping.
Frequently Asked Questions
Q: What is the sensitivity of the 190501-11-00-04?
A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.
Q: What temperature range can this transducer operate in?
A: It operates from -40°C to +85°C (-40°F to +185°F).
Q: Is this transducer suitable for hazardous locations?
A: Yes, it has ATEX/IECEx/CSA (Class I, Division 1) and CSA/NRTL/C (Class I, Division 1) approvals.
Q: What is the maximum cable length?
A: Up to 305 metres (1,000 ft.) using cable part number 02173006.
Q: What is the mounting torque requirement?
A: Apply 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
