190501-12-00-CN | Bently Nevada Velomitor CT Velocity Transducer 3.94 mV/mm/s

Introduction to the 190501-12-00-CN Velomitor CT Velocity Transducer

When machinery vibration threatens uptime, the 190501-12-00-CN from Bently Nevada provides accurate velocity measurements. This Velomitor CT Velocity Transducer is engineered for continuous monitoring in harsh industrial environments. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it delivers reliable data for predictive maintenance programs. The transducer is built to withstand extreme conditions, from -40°C to +85°C operating temperature. Its 316L stainless steel case ensures durability in corrosive settings.

Key Features and Technical Specifications

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5% for precise vibration measurement.
• Frequency response: 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB.
• Extended frequency range: 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 for consistent signal transmission.
• Broadband noise: 0.229 mm/s (0.009 in/s) pk, ensuring clean readings.
• Base strain sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain) for reduced interference.
• Maximum cable length: 305 metres (1,000 ft.) with part number 02173006 cable.
• Mounted resonant frequency: 9 kHz minimum (stud mounted, except quick disconnect).
• Shock limit: 5000 g pk, maximum for rugged reliability.

Applications and Use Cases

In rotating machinery monitoring, the 190501-12-00-CN excels at detecting early signs of bearing wear or imbalance. For example, in a petrochemical plant, this transducer can continuously monitor pump vibrations to prevent unplanned shutdowns. Its wide frequency response makes it suitable for both low-speed and high-speed equipment. The transducer's intrinsic safety approvals (Ex ia IIC T4) allow installation in hazardous areas. Consequently, it is a preferred choice for refineries, gas plants, and other demanding environments.

Installation and Setup Guidance

Mount the transducer using the provided 1/2 plate stud 3/8-in 24 to M8x1 hardware. Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) to ensure proper coupling. The transducer can be oriented in any angle, offering flexibility for tight spaces. Connect using the MIL-C-5015 interface, ensuring polarity: Pin A goes positive with respect to Pin B when velocity is from base to top. For best performance, use Bently Nevada cable part number 02173006 up to 305 metres (1,000 ft.).

Maintenance and Reliability Tips

Regular inspection of the transducer and cable connections helps maintain signal integrity. The 316L stainless steel case resists corrosion, reducing maintenance frequency. Check the mounting surface for cleanliness and flatness to avoid measurement errors. Because the internal electronics are isolated from the case, grounding issues are minimized. For long-term reliability, verify that the operating temperature stays within -40°C to +85°C (-40°F to +185°F).

Compatibility and Integration

The 190501-12-00-CN integrates seamlessly with Bently Nevada monitoring systems and third-party data acquisition platforms. Its standard MIL-C-5015 connector simplifies wiring in retrofit projects. The transducer's output bias voltage of 10.1 Vdc ± 1.0 Vdc is compatible with most vibration monitoring modules. For hazardous locations, the intrinsic safety approvals (Ex ia IIC T4) ensure compliance with global standards. Always refer to installation drawing 167536 for proper setup.

Frequently Asked Questions about the 190501-12-00-CN

What is the sensitivity of the 190501-12-00-CN?

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

What is the operating temperature range?

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

What is the maximum cable length?

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

Is the 190501-12-00-CN intrinsically safe?

Yes, it is certified Ex ia IIC T4 for hazardous locations per drawing 167536.

What is the case material?

The case material is 316L stainless steel for corrosion resistance.

Product Support and Availability

The Bently Nevada 190501-12-00-CN is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time information. We provide expert support to help you select the right transducer for your application.