Bently Nevada 190501-12-99-02 Velomitor CT Velocity Transducer Overview

Introduction

When unplanned downtime disrupts your rotating machinery, how quickly can you pinpoint the root cause? The Bently Nevada 190501-12-99-02 Velomitor CT Velocity Transducer delivers precise vibration data to help you detect faults early and keep operations running smoothly. Designed for harsh industrial environments, this sensor provides reliable performance for critical asset protection.

Technical Specifications Breakdown

The 190501-12-99-02 offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, ensuring accurate velocity measurements. 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, covering a wide spectrum of vibration frequencies. The output bias voltage is 10.1 Vdc ± 1.0 Vdc, and the dynamic output impedance is less than 400 Ω typical. Amplitude linearity remains within ±2% up to 63.5 mm/s pk (2.5 in/s pk). The transducer operates in temperatures from -40°C to +85°C (-40°F to +185°F) and can be stored from -40°C to +100°C (-40°F to +212°F). It withstands shock up to 5000 g pk and operates in 100% condensing humidity. The unit weighs less than 297 g (10.5 oz.) and features a 316L stainless steel case with a 2-pin MIL-C-5015 connector. Mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

Industry Applications

This velocity transducer is ideal for monitoring pumps, compressors, fans, and turbines in industries such as oil and gas, power generation, and petrochemical. Its rugged design and intrinsic safety certifications (Ex ia IIC T4, AEx ia IIC T4, CSA/NRTL/C Class I Division 1, ATEX/IECEx/CSA Class I Zone 0/1) make it suitable for hazardous areas. The included 32-foot cable simplifies installation in remote or confined locations.

Installation & Setup Guidance

Mount the 190501-12-99-02 using the provided 3/8-24 to M8x1 stud. Ensure the mounting surface is clean and flat to achieve the specified resonant frequency of 9 kHz minimum. Apply the recommended torque of 4.5 N-m ± 0.6 N-m. The transducer can be oriented in any angle, and polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top. For hazardous locations, follow installation drawing 167536.

Maintenance & Reliability

Routine inspection of the cable and connector integrity helps maintain signal quality. The stainless steel construction resists corrosion, and the internal electronics are isolated from the case, reducing ground loop issues. Verify the output bias voltage periodically to ensure the transducer remains within specification. For optimal reliability, avoid exceeding the maximum cable length of 305 meters (1,000 ft.) using part number 02173006.

Selection Guide & Purchasing Advice

Before ordering, confirm that the 190501-12-99-02 matches your system requirements, including mounting hardware and cable length. BluePLC Industrial offers this transducer with full technical support to help you select the right configuration. Contact us for current availability and lifecycle status.