Product Overview
When machinery vibration threatens uptime, the Bently Nevada 190501-08-99-04 Velomitor CT Velocity Transducer delivers precise measurements. This sensor provides a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate velocity data for rotating equipment. Built for harsh environments, it carries CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals, making it suitable for hazardous areas.
Technical Specifications Breakdown
Key performance parameters include a frequency response of 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, extending to 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB. The output bias voltage sits at 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B. Amplitude linearity holds within ±2% to 63.5 mm/s pk (2.5 in/s pk). The mounted resonant frequency reaches a minimum of 9 kHz when stud mounted (except quick disconnect). These specs ensure reliable vibration monitoring across a wide range of speeds.
Industry Applications
This transducer excels in monitoring turbines, compressors, and pumps in oil and gas, power generation, and petrochemical plants. Its intrinsic safety rating (Ex ia IIC T4) allows installation in Class I, Division 1, Groups A, B, C, D areas. The 316L stainless steel case resists corrosion, while the 100% condensing humidity limit handles wet environments. For engineers seeking long-term reliability, the 190501-08-99-04 reduces unplanned downtime by providing consistent data.
Installation & Setup Guidance
Mount the transducer using the included plate stud 3/8-in 24 to 1/2-in 20 hardware (Mounting Hardware Option 08). Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). The unit comes with a 32-foot cable (Connection Option 99). Ensure proper grounding: internal electronics are isolated from the case. Install per drawing 167536 for hazardous locations. Any orientation is acceptable, making placement flexible.
Maintenance & Reliability
Routine inspection should focus on cable integrity and mounting torque. The transducer operates from -40°C to +85°C (-40°F to +185°F) and stores from -40°C to +100°C (-40°F to +212°F). With a shock limit of 5000 g pk maximum, it withstands severe impacts. The 316L stainless steel case and 2-pin MIL-C-5015 connector resist environmental stress. Regular verification of output bias voltage ensures continued accuracy.
Selection Guide & Purchasing Advice
Before ordering, confirm the agency approval option (04) matches your area classification. The 190501-08-99-04 includes the cable; for longer runs, use part number 02173006 up to 305 metres (1,000 ft.) without signal degradation. Verify mounting hardware compatibility with your machine. SpareTechPLC stocks this transducer and can advise on availability and lifecycle status. Contact us to confirm current stock and lead times.
Frequently Asked Questions
Q: What is the sensitivity of the 190501-08-99-04?
A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.
Q: What hazardous area approvals does this transducer have?
A: It carries CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals, with intrinsic safety rating Ex ia IIC T4.
Q: What is the maximum cable length?
A: Up to 305 metres (1,000 ft.) of cable (part number 02173006) with no signal degradation.
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 the transducer grounded to the case?
A: No, internal electronics are isolated from the case.
