Bently Nevada 190501-19-00-CN Velomitor CT Velocity Transducer Overview

What Is the Bently Nevada 190501-19-00-CN?

When your rotating machinery starts showing signs of imbalance or bearing wear, how do you catch the problem before it leads to costly downtime? The Bently Nevada 190501-19-00-CN Velomitor CT velocity transducer provides a precise, reliable answer. This sensor is engineered to convert mechanical velocity into an electrical signal, giving you real-time insight into machine health. Manufactured in the USA, this transducer is part of the trusted Bently Nevada product line, known for robust performance in harsh industrial environments.

Technical Specifications

Sensitivity and Frequency Response

The 190501-19-00-CN offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) with a tolerance of ±5%. Its frequency response covers 3.0 Hz to 900 Hz (180 to 54,000 cpm) within ±1.0 dB, and extends from 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) within ±3.0 dB. This wide bandwidth ensures accurate readings across common vibration frequencies found in turbines, pumps, and compressors.

Environmental and Mechanical Limits

Operating temperature ranges from -40°C to +85°C (-40°F to +185°F), with storage capability up to -40°C to +100°C (-40°F to +212°F). The transducer withstands shock up to 5000 g pk maximum and operates in 100% condensing humidity (non-submerged). Its case is made of 316L stainless steel, and the connector is a 2-pin 316L stainless steel MIL-C-5015 top-mounted design. The unit weighs less than 297 g (10.5 oz) and has a mounting surface diameter of 33 mm (1.3 in) with a height of 82 mm (3.2 in).

Electrical Characteristics

Output bias voltage is 10.1 Vdc ± 1.0 Vdc on Pin A referenced to Pin B. Dynamic output impedance is typically less than 400 Ω. The internal electronics are isolated from the case, and the maximum cable length is 305 meters (1,000 ft) using part number 02173006 without signal degradation. Polarity is defined such that Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.

Industry Applications

The 190501-19-00-CN is ideal for continuous vibration monitoring on critical rotating equipment such as steam turbines, centrifugal compressors, and large fans. Its rugged design and wide operating temperature range make it suitable for use in refineries, power plants, and chemical processing facilities. The transducer's intrinsic safety approvals (Ex ia IIC T4 and AEx ia IIC T4) allow installation in hazardous areas classified as Class I, Division 1, Groups A, B, C, D, and Class II, Groups E, F, G, as well as Class III environments. This makes it a go-to choice for safety-critical monitoring applications where reliability is paramount.

Installation and Setup Guidance

Mounting the 190501-19-00-CN requires a clean, flat surface with a 33 mm diameter area. The mounting hardware option 1 9 includes an adapter from 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). The transducer can be mounted in any orientation, offering flexibility in tight spaces. Use the specified MIL-C-5015 connection interface and ensure cable length does not exceed 305 meters to maintain signal integrity. For hazardous area installations, follow drawing 167536 and observe temperature limits: T4 rating applies from -40°C to +100°C (-40°F to +212°F).

Maintenance and Reliability

Regular inspection of the transducer and its cable is recommended to ensure no physical damage or corrosion, especially in condensing humidity environments. The 316L stainless steel case provides excellent corrosion resistance, but periodic checks of the connector and mounting hardware help maintain a secure installation. The transducer's internal electronics are isolated from the case, reducing the risk of ground loops. Given its intrinsic safety certifications, any maintenance should be performed following the manufacturer's guidelines to preserve safety integrity. For complete technical specifications for the 190501-19-00-CN, please contact BluePLC Industrial.