190501-00-00-04 | Bently Nevada 3.94 mV/mm/s Velocity Transducer

Introduction to the Bently Nevada 190501-00-00-04

In the evolving landscape of industrial machinery protection, accurate vibration measurement is non-negotiable. The 190501-00-00-04 from Bently Nevada addresses this need as a Velomitor CT velocity transducer. It converts mechanical vibration into an electrical signal, enabling condition monitoring and predictive maintenance. This model is designed for reliability in demanding environments, making it a cornerstone for asset health programs.

Key Features and Technical Specifications

The 190501-00-00-04 offers a robust set of specifications tailored for precision and durability:

• Electrical Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%.
• Frequency Response: 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB; 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB.
• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B.
• Dynamic Output Impedance: <400 Ω typical.
• Broadband Noise: 0.229 mm/s (0.009 in/s) pk.
• Base Strain Sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain).
• Maximum Cable Length: 305 metres (1,000 ft.) with part number 02173006 cable.
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Shock Limit: 5000 g pk, maximum.
• Case Material: 316L stainless steel.

One distinctive feature is the temperature sensitivity of -8% to +5% typical over the operating range, which ensures consistent performance across thermal extremes. This is critical for applications where temperature fluctuations are common, as it minimizes measurement drift.

Applications and Use Cases

The 190501-00-00-04 is ideal for rotating machinery such as pumps, motors, and fans. Its compact design and any-orientation mounting make it versatile for tight spaces. For instance, in a petrochemical plant, this transducer can be installed on a motor bearing housing to detect early signs of imbalance or misalignment. Consequently, maintenance teams can schedule repairs before catastrophic failure occurs, reducing downtime and repair costs. Moreover, its intrinsic safety approvals (Ex ia IIC T4) allow deployment in hazardous areas, expanding its utility across industries.

Installation and Setup

Proper installation is essential for accurate readings. The 190501-00-00-04 features a 2-pin 316L stainless steel MIL-C-5015 connector on top. Mounting torque should be 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). Ensure the mounting surface is clean and flat, with a 33 mm diameter (1.3 in) area. The transducer can be mounted in any orientation, but polarity must be observed: Pin A goes positive with respect to Pin B when velocity is from base to top. For hazardous area installations, follow the provided drawing 167536 to maintain intrinsic safety.

Maintenance and Reliability

Routine inspection of the transducer and its cable is recommended to ensure long-term reliability. Check for physical damage, loose connections, or corrosion, especially in harsh environments. The 316L stainless steel case offers excellent corrosion resistance, extending service life. Additionally, the internal electronics are isolated from the case, reducing ground loop issues. By adhering to a periodic maintenance schedule, you can maximize the operational lifespan of the 190501-00-00-04 and avoid unexpected failures.

Compatibility and Integration

The 190501-00-00-04 is compatible with Bently Nevada monitoring systems that accept velocity transducer inputs. Its output bias voltage of 10.1 Vdc and dynamic impedance of <400 Ω ensure seamless integration with standard condition monitoring modules. The MIL-C-5015 connection interface simplifies wiring, and the maximum cable length of 305 metres allows flexible placement. For detailed integration guidelines, consult the official Bently Nevada documentation.

FAQ about the 190501-00-00-04

What is the sensitivity of the 190501-00-00-04?

The electrical sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.

Can the 190501-00-00-04 be used in hazardous areas?

Yes, with agency approval option 04, it is intrinsically safe Ex ia IIC T4 and non-incendive Ex nL IIC T4, suitable for Class I, Division 1 and 2 areas.

What is the maximum cable length for this transducer?

Up to 305 metres (1,000 ft.) of cable (part number 02173006) can be used without signal degradation.

What is the operating temperature range?

The operating temperature range is -40°C to +85°C (-40°F to +185°F).

How should the transducer be mounted?

It can be mounted in any orientation, with a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

Product Support and Availability

At Petro Auto Tech, we stock the 190501-00-00-04 and are ready to ship. As a trusted supplier of industrial automation parts, we ensure genuine products and reliable service. Contact us for current availability and lifecycle status.