190501-01-00-01 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the 190501-01-00-01

When machine vibration threatens uptime, the 190501-01-00-01 from Bently Nevada provides the precise measurement you need. 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 (±5%), this transducer converts mechanical velocity into a clear electrical signal. Its frequency response spans 3.0 Hz to 900 Hz (±1.0 dB) and extends to 1.0 kHz (±3.0 dB), covering the range most rotating machinery exhibits.

Built with 316L stainless steel, the 190501-01-00-01 withstands harsh conditions. Its operating temperature range of -40°C to +85°C ensures dependable performance in extreme settings.

Key Features and Technical Specifications

Every parameter of the 190501-01-00-01 is designed for reliability. Key specifications include:

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
• Frequency Response: 3.0 Hz to 900 Hz ±1.0 dB; 1.5 Hz to 1.0 kHz ±3.0 dB
• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B
• Dynamic Output Impedance: <400 Ω typical
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted)
• Broadband Noise: 0.229 mm/s (0.009 in/s) pk
• Base Strain Sensitivity: 0.43 mm/s/μstrain
• Maximum Cable Length: 305 meters (1,000 ft) with no signal degradation

These specs translate into dependable vibration data. The low base strain sensitivity minimizes false readings from mounting stress, while the high resonant frequency avoids interference in most operating ranges.

Applications and Use Cases

The 190501-01-00-01 excels in monitoring pumps, motors, fans, and gearboxes. Its intrinsic safety approvals (CSA/NRTL/C Class I Division 1, ATEX/IECEx/CSA Class I Zone 0/1) make it suitable for hazardous areas.

For example, in a chemical plant, this transducer can be installed on a critical pump to detect early bearing wear. Its 5000 g pk shock limit ensures survival during sudden impacts, while the 100% condensing humidity tolerance allows use in washdown environments.

Because it is a velocity transducer, it provides direct velocity output, which is ideal for machinery with unbalanced or misaligned rotating parts.

Installation and Setup

Proper installation is key to accurate readings. The 190501-01-00-01 uses a 3/8-in 24 stud mount, ensuring a rigid connection. Tighten to 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) to avoid damping the signal.

The MIL-C-5015 connection interface simplifies wiring. The 2-pin connector is top-mounted, and polarity is marked: Pin A goes positive with respect to Pin B when velocity is from base to top.

Mounting angle is flexible—any orientation works. However, always follow the manufacturer's installation drawing (167536) for hazardous area installations to maintain intrinsic safety.

Maintenance and Reliability

Routine maintenance is minimal. The sealed 316L stainless steel case protects internal electronics from moisture and contaminants. Periodic inspection of the mounting stud and connector is recommended to ensure tightness and clean contacts.

Because the internal electronics are isolated from the case, ground loops are avoided, enhancing signal integrity. With no moving parts, the transducer offers long service life, reducing replacement costs.

Temperature sensitivity is -8% to +5% typical over the operating range, meaning output variation is predictable and manageable in most applications.

Compatibility and Integration

The 190501-01-00-01 is designed to work with Bently Nevada monitoring systems. Its output bias voltage of 10.1 Vdc is compatible with standard data acquisition equipment.

For new installations, consider using the specified cable (part number 02173006) to maintain signal quality over long runs. The transducer's low output impedance (<400 Ω) allows cable lengths up to 305 meters without degradation.

Always verify compatibility with your existing monitor or PLC input module. Consult Bently Nevada documentation for detailed integration guidelines.

Common Questions

Q: What is the sensitivity of the 190501-01-00-01?

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

Q: Can this transducer be used in 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?

A: Up to 305 meters (1,000 ft) with no signal degradation when using the specified cable.

Q: What is the operating temperature range?

A: -40°C to +85°C (-40°F to +185°F).

Q: How should I mount the transducer?

A: Use a 3/8-in 24 stud and tighten to 4.5 N-m ± 0.6 N-m. Any orientation is acceptable.

Availability and Support

The 190501-01-00-01 is available from Petro Auto Tech. Contact our team for current pricing and lead times. We are ready to help you integrate this reliable transducer into your monitoring system.