Main Features and Advantages

True Velocity Measurement: The Bently Nevada 190501-04-00-CN distinguishes itself by providing a true AC velocity output. Unlike rectified DC signals found in standard 4-20 mA loops, the 190501-04-00-CN preserves the vibration waveform. This allows monitoring systems to detect specific fault frequencies, such as unbalance, misalignment, or looseness, providing a deeper level of insight into machine health. The high sensitivity of 100 mV/(in/s) ensures a strong signal-to-noise ratio, making the 190501-04-00-CN highly reliable even on machines with low vibration levels.

Ruggedized “Velomitor” Design: The 190501-04-00-CN features the patented Velomitor design, which is hermetically sealed and built to withstand harsh environmental conditions. It is highly resistant to moisture, oil, and chemical ingress, making it suitable for outdoor applications like cooling towers and petrochemical plants. The sensor’s robust internal construction protects the piezoelectric elements from shock and damage, ensuring the 190501-04-00-CN maintains its calibration and accuracy over long periods of operation.

Simplified Two-Wire Installation: Installation of the Bently Nevada 190501-04-00-CN is straightforward and cost-effective. It utilizes a standard two-wire constant current loop, which is compatible with most modern PLCs, DCS analog inputs, and dedicated machinery protection racks (like the 1900 series). This eliminates the need for separate signal conditioners or complex multi-wire cabling. The 190501-04-00-CN mounts directly to the machine surface via a standard 1/2-20 stud, providing a rigid mechanical coupling essential for accurate high-frequency measurement.