190501-12-00-04 | Bently Nevada 3.94 mV/mm/s Velocity Transducer

What Is the 190501-12-00-04?

When machinery vibration threatens uptime, the 190501-12-00-04 from Bently Nevada provides reliable velocity measurement. This Velomitor CT velocity transducer converts mechanical motion into an electrical signal for continuous monitoring. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it captures vibration data accurately across a wide frequency range. The 190501-12-00-04 is designed for harsh environments, featuring a 316L stainless steel case and multiple agency approvals including CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1). Its compact design weighs only 0.297 kg and mounts easily on any orientation.

Core Specs and Performance Metrics

• Sensitivity: 3.94 mV/mm/s ±5% ensures consistent vibration measurement.
• Frequency Response: 3.0 Hz to 900 Hz (±1.0 dB) and 1.5 Hz to 1.0 kHz (±3.0 dB) covers critical machinery speeds.
• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc provides a stable reference for data acquisition.
• Operating Temperature: -40°C to +85°C suits extreme industrial conditions.
• Shock Limit: 5000 g pk maximum withstands high-impact events.
• Mounted Resonant Frequency: 9 kHz minimum ensures accurate high-frequency response.
• Broadband Noise: 0.229 mm/s pk keeps signal clean for reliable analysis.

Installation and Mounting Guidance

Mount the 190501-12-00-04 using the included 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 secure the transducer. The unit can be oriented at any angle, simplifying placement on rotating equipment. Use cable part number 02173006 up to 305 metres (1,000 ft.) without signal degradation. Ensure the mounting surface is clean and flat for optimal coupling.

Maintenance and Reliability Tips

Regularly inspect the 190501-12-00-04 for physical damage or loose connections. Verify output bias voltage periodically to confirm internal electronics are functioning. The stainless steel case resists corrosion in humid or chemically aggressive environments. With no moving parts, this transducer offers long service life and minimal maintenance. Always follow Bently Nevada guidelines for safe operation in hazardous areas.

Common Questions About the 190501-12-00-04

Q: What is the sensitivity of the 190501-12-00-04?

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

Q: What temperature range can this transducer handle?

A: It operates from -40°C to +85°C and can be stored from -40°C to +100°C.

Q: Is the 190501-12-00-04 approved for hazardous locations?

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 maximum cable length?

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

Q: How do I determine the polarity?

A: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.

Product Support and Availability

The 190501-12-00-04 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We provide fast delivery and dedicated support for your industrial automation needs.