190501-08-99-04 | Bently Nevada Velocity Transducer

Introduction to the Bently Nevada 190501-08-99-04

When machinery vibration threatens uptime, the 190501-08-99-04 from Bently Nevada provides reliable velocity measurement. This Velomitor CT velocity transducer is engineered for industrial environments where accuracy and durability are non-negotiable. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it delivers consistent performance across a wide frequency range.

Part of the trusted Bently Nevada family, this transducer is built to withstand harsh conditions. Its 316L stainless steel case and internal electronics isolation from ground ensure long-term stability. Whether monitoring pumps, motors, or turbines, the 190501-08-99-04 helps you detect issues early, reducing costly downtime.

Key Features and Technical Specifications

The 190501-08-99-04 is packed with features that make it a top choice for vibration monitoring. Below are the core specifications extracted from the datasheet:

• Product Type: Velomitor CT Velocity Transducer
• 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: 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 meters (1,000 ft.) of cable (part number 02173006) with no degradation of signal
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Storage Temperature: -40°C to +100°C (-40°F to +212°F)
• Shock Limit: 5000 g pk, maximum
• Humidity Limit: 100% condensing, non-submerged
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60 Hz
• Weight: <297 g (10.5 oz.), typical
• Mounting Surface: 33 mm diameter (1.3 in diameter)
• Height: 82 mm (3.2 in)
• Case Material: 316L stainless steel
• Connector: 2-pin 316L stainless steel MIL-C5015, top
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf)
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer
• Mounting Angle: Any orientation
• Agency Approvals: CSA/NRTL/C (Class I, Division 1), ATEX/IECEx/CSA (Class I, Zone 0/1)

One standout feature is the intrinsically safe rating: Ex ia IIC T4 and AEx ia IIC T4, making it suitable for hazardous areas. This is crucial for industries like oil and gas, where safety is paramount.

Applications and Use Cases

The 190501-08-99-04 excels in various industrial settings. It is ideal for monitoring rotating machinery such as turbines, compressors, and fans. Its robust design and wide frequency response make it suitable for both low-speed and high-speed equipment. Additionally, the transducer's ability to operate in condensing humidity and its 5000 g shock limit ensure reliable performance in demanding environments.

For example, in a petrochemical plant, this transducer can be mounted on a critical pump to provide real-time vibration data. This data helps maintenance teams identify imbalance or misalignment before they cause catastrophic failure. The result is reduced downtime and lower repair costs, directly improving operational efficiency.

Installation and Setup

Proper installation is key to maximizing the performance of the 190501-08-99-04. The transducer comes with a mounting hardware option of a plate stud (3/8-in 24 to 1/2-in 20) and a 32-foot cable. The mounting torque should be 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) to ensure a secure fit. The transducer can be mounted in any orientation, offering flexibility in tight spaces.

Before installation, verify that the mounting surface is clean and flat. Use the provided cable (part number 02173006) to maintain signal integrity over long distances—up to 305 meters. Always follow the manufacturer's guidelines to avoid damage to the transducer or the equipment being monitored.

Maintenance and Reliability

Routine maintenance of the 190501-08-99-04 is straightforward. Periodically inspect the transducer and cable for signs of wear or damage. Check the mounting torque periodically, as vibrations can loosen connections over time. The 316L stainless steel case provides excellent corrosion resistance, extending the service life even in harsh environments.

Given its robust construction and high shock limit, the transducer requires minimal maintenance. However, regular verification of its output signal is recommended to ensure accurate readings. This proactive approach helps avoid unexpected failures and keeps your machinery running smoothly.

Compatibility and Integration

The 190501-08-99-04 is designed to integrate seamlessly with Bently Nevada monitoring systems. Its standard 2-pin MIL-C5015 connector ensures easy wiring. The output bias voltage of 10.1 Vdc is compatible with most data acquisition systems. While specific protocols are not listed, the transducer's analog output can be connected to a variety of PLCs and vibration monitors.

For detailed integration guidance, refer to the official Bently Nevada documentation or contact Petro Auto Tech for expert support.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-08-99-04?

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

Q: What is the maximum cable length for this transducer?

A: The maximum cable length is 305 meters (1,000 ft.) using cable part number 02173006.

Q: Is the 190501-08-99-04 suitable for hazardous areas?

A: Yes, it has CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals.

Q: What is the operating temperature range?

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

Q: Can the transducer be mounted in any orientation?

A: Yes, it can be mounted in any orientation, offering installation flexibility.

Product Support and Availability

The 190501-08-99-04 is available through Petro Auto Tech. We are a trusted industrial automation parts supplier, ensuring genuine products and reliable service. Contact us for current availability and lifecycle status. Our team is ready to assist with your vibration monitoring needs.