Bently Nevada 190501-24-99-CN Velocity Transducer

Product Details

190501-24-99-CN Product Description

The Bently Nevada 190501-24-99-CN is a high-performance Velomitor CT velocity transducer engineered for seamless integration into rotating machinery protection and condition monitoring architectures. Designed to deliver broadband velocity signals across a wide frequency range, this transducer serves as a critical sensing node within multi-layer industrial control systems — from the field sensing layer through to the supervisory control and data acquisition (SCADA) platform. Its robust construction, low-impedance output, and compatibility with Bently Nevada's 3500 Series monitoring racks make it a preferred choice for engineers specifying vibration monitoring solutions in power generation, petrochemical, oil and gas, water treatment, mining, and marine propulsion environments.

Unlike conventional velocity sensors, the 190501-24-99-CN is built around the Velomitor CT (Compact Transducer) platform, which integrates an internal signal conditioning circuit to deliver a low-noise, high-fidelity velocity output directly compatible with the Bently Nevada 3500/42M Velocity and Acceleration Monitor. This eliminates the need for external signal conditioners in most standard rack configurations, reducing wiring complexity, minimizing potential signal degradation points, and improving overall system diagnostic confidence.

The 190501-24-99-CN operates as the primary velocity sensing element within a Bently Nevada 3500 Series continuous machinery protection system. In a fully integrated control architecture, this transducer feeds real-time velocity data into the Bently Nevada 3500/42M Velocity and Acceleration Monitor, which processes the signal against user-configured alert and danger setpoints. The 3500/42M module resides within the Bently Nevada 3500 Rack — a modular, backplane-based chassis that supports simultaneous operation of multiple monitor modules including the 3500/22M Transient Data Interface, 3500/32 4-Channel Relay Module, and 3500/15 Power Supply Module.

At the communication layer, the 3500 rack interfaces with plant-level DCS and SCADA systems via the 3500/92 Communication Gateway Module, supporting Modbus RTU, Modbus TCP/IP, and OPC-DA protocols. This enables the velocity data captured by the 190501-24-99-CN to be transmitted upstream to historian platforms, operator workstations, and condition monitoring software such as Bently Nevada System 1 Evolution — providing continuous trend analysis, alarm management, and predictive maintenance decision support.

For redundant protection architectures, the 190501-24-99-CN can be deployed in dual-sensor configurations alongside Bently Nevada 330103 or 330180 Series Proximity Transducers to provide complementary radial vibration and velocity coverage on the same machine train. This layered sensing strategy — combining eddy-current proximity probes for shaft relative motion with velocity transducers for bearing housing absolute motion — is standard practice in API 670-compliant machinery protection systems for steam turbines, gas compressors, and large centrifugal pumps.

At the I/O and field wiring layer, the transducer's 2-pin MIL-style connector interfaces with Bently Nevada 3500 I/O Module terminal blocks and field junction boxes, supporting both home-run and marshalling cabinet wiring topologies. Cable shielding and grounding practices per Bently Nevada installation guidelines ensure signal integrity across long cable runs in electrically noisy industrial environments. For installations requiring signal isolation or protocol conversion at the field level, DIN-rail mounted signal isolators and Modbus RTU-to-TCP/IP gateways can be inserted between the 3500 rack analog outputs and the plant DCS I/O cards without disrupting the primary protection loop.

Power distribution to the 190501-24-99-CN is managed through the 3500/15 or 3500/15E Power Supply Module, which provides regulated 24 VDC to all transducer inputs within the rack. Redundant power supply configurations using dual 3500/15 modules with automatic failover ensure uninterrupted transducer excitation even during power supply maintenance or failure events — a critical requirement for continuous-duty protection systems in unmanned or remote installations.

Power Generation: In steam turbine and gas turbine protection systems, the 190501-24-99-CN monitors bearing housing velocity on HP/LP turbine casings, feeding the 3500/42M monitor to provide early warning of unbalance, misalignment, and bearing degradation. Integration with the plant DCS via the 3500/92 gateway enables automated turbine runback or trip initiation based on velocity alarm thresholds.

Petrochemical and Oil & Gas: On centrifugal compressors, reciprocating compressors, and process pumps in refinery and upstream production environments, the 190501-24-99-CN provides continuous velocity monitoring at non-drive-end and drive-end bearing locations. Its stainless steel housing and IP67-equivalent sealing ensure reliable operation in hydrocarbon-laden, high-humidity, and corrosive atmospheres.

Water Treatment and Utilities: Large vertical turbine pumps, horizontal split-case pumps, and blower trains in municipal water and wastewater facilities benefit from the 190501-24-99-CN's low-frequency response capability, enabling detection of hydraulic instability and cavitation signatures that manifest below 10 Hz — a range where traditional magnetic velocity sensors lose sensitivity.

Mining and Minerals Processing: On SAG mills, ball mills, conveyor drive gearboxes, and crusher drives, the 190501-24-99-CN withstands high ambient vibration, dust ingress, and wide temperature swings. Its compatibility with the 3500 rack's transient data capture capability via the 3500/22M module supports detailed startup and coast-down analysis for critical mill drive trains.

Marine Propulsion and Offshore: Installed on main propulsion diesel engines, reduction gearboxes, and shaft line bearings aboard vessels and offshore platforms, the 190501-24-99-CN meets the environmental requirements for marine-grade vibration monitoring. Its loop-powered design simplifies installation in space-constrained machinery spaces where dedicated signal conditioner enclosures are impractical.

Q1: Is the Bently Nevada 190501-24-99-CN directly compatible with the 3500/42M Velocity Monitor without additional signal conditioning? Yes. The 190501-24-99-CN Velomitor CT incorporates internal signal conditioning electronics that produce a low-impedance velocity output fully compatible with the 3500/42M monitor's transducer input specifications. No external signal conditioner or in-line amplifier is required for standard rack installations. Verify the monitor's input configuration (voltage vs. 4–20 mA mode) matches the transducer's output type during commissioning.

Q2: Can this transducer be used in a redundant dual-sensor architecture alongside proximity probes on the same machine? Yes. API 670 and Bently Nevada application guidelines support combined proximity probe and velocity transducer installations on the same machine bearing location. The 190501-24-99-CN provides absolute bearing housing velocity, while a 330103 or 330180 proximity transducer measures shaft relative displacement. Both signals are processed independently within the 3500 rack, providing complementary protection coverage and improving diagnostic confidence during alarm investigation and root cause analysis.

Q3: What is the warranty coverage and availability status for the 190501-24-99-CN? NANKMOS supplies the Bently Nevada 190501-24-99-CN with a 12-Month Warranty covering manufacturing defects and functional performance. Units are held in stock and undergo pre-shipment functional testing prior to dispatch to verify output sensitivity, frequency response, and connector integrity. Lead times are typically short for in-stock units; contact NANKMOS for current inventory levels and expedited shipping options for urgent maintenance or project requirements.