Bently Nevada 190501-14-00-CN Velomitor CT Velocity Transducer Overview

Product Introduction

When machinery vibration threatens uptime, the Bently Nevada 190501-14-00-CN Velomitor CT Velocity Transducer delivers precise, reliable measurements. This sensor converts mechanical velocity into an electrical signal, enabling early detection of bearing wear, imbalance, and misalignment. Built for harsh environments, it features a 316L stainless steel case and a MIL-C-5015 connection interface. The CN agency approval option ensures compliance with country-specific standards, making it suitable for global industrial installations.

Technical Specifications Breakdown

The 190501-14-00-CN offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, providing consistent output across its 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. This covers most rotating machinery speeds. The output bias voltage is 10.1 Vdc ± 1.0 Vdc, referenced from Pin A to Pin B. Dynamic output impedance is less than 400 Ω typical, ensuring strong signal transmission over long cable runs up to 305 metres (1,000 ft.) without degradation. The transducer operates from -40°C to +85°C and stores from -40°C to +100°C, withstanding shock up to 5000 g pk.

Industry Applications

This velocity transducer excels in critical rotating equipment monitoring. In steam turbines, it detects early-stage vibration changes that indicate blade pass or bearing deterioration. In centrifugal compressors, the 190501-14-00-CN provides accurate velocity readings for surge prevention and performance optimization. Its intrinsic safety certifications (Ex ia IIC T4 and AEx ia IIC T4) allow installation in hazardous areas like oil and gas refineries, where explosive gases may be present.

Installation & Setup Guidance

Mount the transducer using the included 3/8-in 24 to 1/4-in 20 adapter. Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). The sensor can be installed at any orientation, simplifying placement in tight spaces. Ensure the mounting surface is clean and flat (33 mm diameter minimum). Connect via the MIL-C-5015 2-pin connector, noting that Pin A goes positive with respect to Pin B when velocity is from base to top. For hazardous locations, follow installation drawing 167536 to maintain intrinsic safety.

Maintenance & Reliability

The 190501-14-00-CN requires minimal maintenance due to its robust 316L stainless steel construction and sealed electronics. Periodically inspect the cable and connector for damage, especially in high-vibration or corrosive environments. The internal electronics are isolated from the case, reducing ground loop issues. Verify output bias voltage periodically to ensure sensor health. With a mounted resonant frequency of 9 kHz minimum, the transducer resists resonance-induced errors in most industrial applications.

Selection Guide & Purchasing Advice

When selecting the 190501-14-00-CN, verify that your monitoring system accepts a velocity input with the specified sensitivity and bias voltage. Confirm that the MIL-C-5015 connector matches your existing cabling or plan to use Bently Nevada cable part number 02173006. For hazardous area installations, ensure the agency approval option (CN) aligns with local regulations. BluePLC Industrial offers this transducer with fast shipping and technical support. Contact them to confirm current lifecycle status and availability before ordering.

Comparison with Similar Products

Compared to standard piezoelectric accelerometers, the 190501-14-00-CN provides a direct velocity output without integration, simplifying signal processing. Unlike eddy current probes, it measures absolute casing vibration rather than relative shaft motion, making it ideal for bearing housing monitoring. Its frequency response from 1.5 Hz to 1.0 kHz covers a wider low-frequency range than many general-purpose accelerometers, which often roll off below 10 Hz. The intrinsic safety certifications also set it apart from non-rated sensors, enabling use in classified areas.