Product Introduction
When machinery vibration threatens uptime in critical rotating equipment, the Bently Nevada 190501-07-00-04 Velomitor CT Velocity Transducer provides reliable measurement. This transducer converts mechanical velocity into an electrical signal for monitoring and protection systems. Designed for harsh industrial environments, it delivers consistent performance across a wide temperature range.
Technical Specifications Breakdown
The 190501-07-00-04 offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate vibration 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. This allows effective monitoring of low to medium frequency vibrations common in pumps, fans, and compressors.
Amplitude linearity holds within ±2% to 63.5 mm/s pk (2.5 in/s pk), providing consistent output. The output bias voltage is 10.1 Vdc ± 1.0 Vdc (Pin A referenced to Pin B), and dynamic output impedance is less than 400 Ω typical. These specs simplify integration with data acquisition systems.
Industry Applications
In petrochemical plants, the 190501-07-00-04 monitors centrifugal pumps and compressors for early signs of imbalance or bearing wear. Its operating temperature range of -40°C to +85°C (-40°F to +185°F) suits outdoor and process areas. In power generation, it tracks turbine vibrations, helping avoid unplanned outages. The transducer's transverse response is less than 5% of axial sensitivity, minimizing cross-axis errors.
Installation & Setup Guidance
Mount the transducer on a clean, flat surface with a diameter of at least 33 mm (1.3 in). Use the provided plate stud 3/8-in 24 to 3/8-in 24 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 oriented in any angle, simplifying placement. Connect via the MIL-C-5015 2-pin connector, ensuring pin A goes positive with respect to pin B when velocity is from base to top.
Maintenance & Reliability
Routine inspection of the transducer and cable connections is recommended. The 316L stainless steel case resists corrosion in humid or chemical environments. The humidity limit is 100% condensing (non-submerged), and the shock limit is 5000 g pk maximum. With proper installation, the device provides long-term, stable performance.
Selection Guide & Purchasing Advice
Before ordering, verify that your system requires a velocity transducer with the specified sensitivity and frequency response. The 190501-07-00-04 includes CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals for hazardous areas. SpareTechPLC stocks this model and can confirm current lifecycle status and availability. Contact our team for assistance with compatible cables (part number 02173006) and mounting accessories.
Frequently Asked Questions
What is the maximum cable length for the 190501-07-00-04?
The maximum cable length is 305 metres (1,000 ft.) of cable (part number 02173006) with no signal degradation.
Can this transducer be used in hazardous locations?
Yes, it carries CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals for intrinsically safe and non-incendive installations.
What is the output bias voltage?
The output bias voltage is 10.1 Vdc ± 1.0 Vdc, measured from Pin A to Pin B.
What mounting hardware is included?
The mounting hardware option is a plate stud 3/8-in 24 to 3/8-in 24.
Is the transducer sensitive to magnetic fields?
Magnetic field susceptibility is less than 0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz.
