What Is the Bently Nevada 190501-19-00-04 Velomitor CT Velocity Transducer?
When machinery vibration threatens uptime, the Bently Nevada 190501-19-00-04 Velomitor CT Velocity Transducer delivers precise measurement. This sensor converts mechanical velocity into an electrical signal for monitoring critical rotating equipment. It is designed for harsh industrial environments and carries multiple agency approvals for hazardous locations.
Technical Specifications Breakdown
The 190501-19-00-04 offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate velocity readings. 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. Operating temperature ranges from -40°C to +85°C (-40°F to +185°F), and the unit withstands 5000 g pk shock. The 316L stainless steel case and connector provide corrosion resistance.
Industry Applications
In petrochemical plants, the 190501-19-00-04 monitors pumps and compressors in Class I, Division 1 areas. Its intrinsic safety certification (Ex ia IIC T4) allows installation in explosive gas atmospheres. Power generation facilities use it for turbine vibration analysis, leveraging the 305-meter maximum cable length for remote monitoring. The transducer's transverse response below 5% of axial sensitivity minimizes false readings from lateral motion.
Installation & Setup Guidance
Mount the transducer on a clean, flat surface with the provided adapter (3/8-in 24 to 1/4-in 18 NPT). Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). Ensure the MIL-C-5015 connection interface is securely mated. Polarity is critical: Pin A goes positive with respect to Pin B when velocity is from base to top. Any orientation is acceptable, but verify the mounting surface is 33 mm diameter minimum.
Maintenance & Reliability
Inspect the transducer periodically for physical damage or loose connections. The internal electronics are isolated from the case, reducing ground loop issues. Humidity limits of 100% condensing (non-submerged) allow use in wet environments. Regular calibration checks ensure the sensitivity remains within ±5%. The 316L stainless steel construction resists corrosion, extending service life in aggressive atmospheres.
Selection Guide & Purchasing Advice
Before ordering the 190501-19-00-04, verify your required agency approval: this unit includes CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1). Confirm the mounting hardware option (adapter included) and connection interface (MIL-C-5015). SpareTechPLC stocks this model and can advise on cable part number 02173006 for optimal signal integrity up to 305 meters.
Frequently Asked Questions
Q: What is the sensitivity of the 190501-19-00-04?
A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.
Q: Can this transducer be used in hazardous areas?
A: Yes, it is certified intrinsically safe Ex ia IIC T4 for Class I, Division 1, Groups A, B, C, D.
Q: What is the maximum cable length?
A: Up to 305 metres (1,000 ft.) with cable part number 02173006 without signal degradation.
Q: What is the operating temperature range?
A: -40°C to +85°C (-40°F to +185°F).
Q: What material is the case made of?
A: 316L stainless steel for both the case and connector.
