Bently Nevada 190501-01-00-01 Velomitor CT Velocity Transducer

Introduction

When a petrochemical plant experiences unexpected vibration spikes on a critical centrifugal compressor, unplanned downtime can cost tens of thousands of dollars per hour. The Bently Nevada 190501-01-00-01 Velomitor CT Velocity Transducer provides the precise, reliable vibration data needed to detect developing faults early and schedule maintenance proactively. This rugged, intrinsically safe sensor is engineered for continuous monitoring in the harshest industrial environments.

Technical Specifications Breakdown

The 190501-01-00-01 delivers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate velocity measurements across a wide frequency range. Its frequency response covers 3.0 Hz to 900 Hz (180 to 54,000 cpm) within ±1.0 dB, and extends to 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) within ±3.0 dB. The output bias voltage is 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B, with a dynamic output impedance of less than 400 Ω typical. The transducer maintains amplitude linearity of ±2% up to 63.5 mm/s pk (2.5 in/s pk), and its mounted resonant frequency is 9 kHz minimum when stud mounted. Base strain sensitivity is 0.43 mm/s/μstrain (0.017 in/s/μstrain), ensuring minimal interference from mechanical stress.

Industry Applications

This velocity transducer excels in monitoring critical rotating assets such as steam turbines, centrifugal compressors, pumps, and fans in oil and gas, power generation, and chemical processing facilities. Its intrinsic safety certifications—Ex ia IIC T4 and AEx ia IIC T4—make it suitable for Class I, Division 1, Groups A, B, C, D; Class II, Groups E, F, G; and Class III hazardous locations. The 190501-01-00-01 operates reliably across an ambient temperature range of -40°C to +85°C, with storage capability from -40°C to +100°C, and withstands shock up to 5000 g pk maximum.

Installation & Setup Guidance

Mounting the 190501-01-00-01 requires a 3/8-in-24 stud, and the mounting torque specification is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). The transducer can be installed at any orientation, and the 2-pin 316L stainless steel MIL-C-5015 top connector provides a robust, corrosion-resistant interface. Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer. Maximum cable length is 305 metres (1,000 ft.) using part number 02173006 cable without signal degradation. The internal electronics are isolated from the case, simplifying grounding requirements.

Maintenance & Reliability

The 316L stainless steel case and connector provide exceptional corrosion resistance in harsh environments. The transducer is designed for long-term, maintenance-free operation under normal conditions. Periodic inspection of the cable and connector for damage is recommended. The unit operates in 100% condensing humidity (non-submerged) and exhibits magnetic field susceptibility below 0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz, ensuring reliable readings even near large electric motors.

Selection Guide & Purchasing Advice

When selecting the 190501-01-00-01, verify that your application requires the Agency Approval Option 01 (CSA/NRTL/C Class I, Division 1; ATEX/IECEx/CSA Class I, Zone 0/1) and the MIL-C-5015 connection interface. The mounting hardware option includes a 3/8-in-24 stud. For complete technical specifications and to confirm availability, contact BluePLC Industrial. Our team can help you verify compatibility with your existing Bently Nevada monitoring system and provide competitive pricing for this critical spare part.