190501-19-00-04 | Bently Nevada 3.94 mV/mm/s Velomitor CT Velocity Transducer

What Is the 190501-19-00-04 Velomitor CT Velocity Transducer?

When machinery vibration threatens uptime, the 190501-19-00-04 from Bently Nevada provides accurate, real-time velocity measurements. This Velomitor CT Velocity Transducer is engineered for continuous monitoring in critical rotating equipment. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it captures subtle changes in vibration. The transducer operates from 3.0 Hz to 900 Hz (180 to 54,000 cpm) with ±1.0 dB flatness. Its robust design suits harsh industrial conditions.

Key Features & Technical Specs

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5% for accurate velocity readings.
• 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 for stable signal transmission.
• Broadband Noise: 0.229 mm/s (0.009 in/s) pk ensures low noise floor.
• Base Strain Sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain) minimizes false readings.
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted, except quick disconnect).
• Maximum Cable Length: 305 meters (1,000 ft.) of cable (part number 02173006) with no signal degradation.
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Shock Limit: 5000 g pk maximum for durability.

Applications & Use Cases

Maintenance engineers rely on the 190501-19-00-04 for vibration monitoring on pumps, fans, compressors, and turbines. Its wide frequency response captures both low-speed and high-speed machinery issues. The transducer's high shock tolerance makes it suitable for reciprocating equipment. In hazardous areas, the ATEX/IECEx/CSA (Class I, Zone 0/1) approval ensures safe operation. This model excels in continuous process industries where downtime is costly.

Installation Guide

Mount the transducer using the supplied 3/8-in 24 to 1/4-in 18 NPT adapter. Apply a mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). The 316L stainless steel case and MIL-C-5015 connector provide corrosion resistance. Ensure the mounting surface is clean and flat for optimal coupling. Polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top. The transducer can be mounted in any orientation.

Maintenance & Reliability

Regularly inspect the cable and connector for damage. Verify the output bias voltage (10.1 Vdc ± 1.0 Vdc) during routine checks. The internal electronics are isolated from the case, reducing ground loop issues. With a 100% condensing humidity limit and 5000 g shock rating, this transducer withstands harsh environments. Periodic calibration checks ensure continued accuracy.

Compatibility & Integration

The 190501-19-00-04 integrates with Bently Nevada monitoring systems and third-party data acquisition units. Its standard 100 mV/in/s sensitivity matches most vibration monitoring platforms. The MIL-C-5015 connector simplifies field wiring. Maximum cable length of 305 meters allows flexible placement of monitoring electronics.

FAQs about 190501-19-00-04

Q: What is the sensitivity of the 190501-19-00-04?

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 (-40°F to +185°F) and stores from -40°C to +100°C (-40°F to +212°F).

Q: Is the 190501-19-00-04 approved 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 maximum cable length for this transducer?

A: It can drive up to 305 meters (1,000 ft.) of cable (part number 02173006) without signal degradation.

Q: What is the mounting torque specification?

A: The recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

Product Support & Availability

The Bently Nevada 190501-19-00-04 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We provide fast, reliable service for industrial automation parts.