190501-07-00-04 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the Bently Nevada 190501-07-00-04

When reliable vibration measurement is critical for rotating machinery, the 190501-07-00-04 from Bently Nevada provides accurate velocity data. This Velomitor CT velocity transducer is engineered for industrial environments where uptime and safety are paramount. With its robust design and proven performance, it helps maintenance teams detect mechanical issues early and avoid unplanned downtime.

Key Features and Technical Specifications

The 190501-07-00-04 offers a comprehensive set of specifications designed for demanding applications. Key parameters include:

• 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
• Temperature Sensitivity: -8% to +5% typical over operating temperature range
• Transverse Response: Less than 5% of axial sensitivity
• Amplitude Linearity: ±2% to 63.5 mm/s pk (2.5 in/s pk)
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted)
• 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)
• Grounding: Internal electronics isolated from case
• Maximum Cable Length: 305 metres (1,000 ft) with part number 02173006 cable

These specifications ensure accurate and repeatable vibration measurements across a wide range of operating conditions. The low output impedance and high sensitivity make it suitable for integration with standard monitoring systems.

Environmental Durability and Certifications

The 190501-07-00-04 is built to withstand harsh industrial environments. Its environmental limits include:

• 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

Additionally, this model carries agency approvals for hazardous areas. It is certified as Intrinsically Safe Ex ia IIC T4 and AEx ia IIC T4, covering Class I, Division 1, Groups A, B, C, D; Class II, Groups E, F, G; and Class III. It also meets Intrinsically Safe and Non-Incendive Ex nL IIC T4 and AEx nA T4 for Class I, Division 2, Groups A, B, C, and D. Installation must follow drawing 167536, with temperature rating T4 at -40°C ≤ Ta ≤ +100°C.

Mechanical Construction and Mounting

The transducer features a 316L stainless steel case and connector, ensuring corrosion resistance in demanding environments. Its mechanical specifications include:

• Weight: <297 g (10.5 oz) typical
• Mounting Surface: 33 mm diameter (1.3 in)
• Height: 82 mm (3.2 in)
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf)
• Mounting Angle: Any orientation
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top

The mounting hardware option 07 provides a plate stud 3/8-in 24 to 3/8-in 24, and the connection option 00 uses a MIL-C-5015 interface. These features simplify installation and ensure secure mounting.

Applications and Use Cases

The 190501-07-00-04 is ideal for vibration monitoring on rotating equipment such as pumps, motors, fans, and compressors. Its rugged design and hazardous-area certifications make it suitable for use in oil and gas, chemical, and power generation facilities. By providing continuous velocity data, it enables predictive maintenance strategies that reduce downtime and extend machinery life.

Installation and Setup

Proper installation is essential for accurate measurements. The transducer should be mounted directly to the machine surface using the provided stud, with the recommended mounting torque applied. The MIL-C-5015 connector ensures a secure electrical connection. For best results, follow the manufacturer's guidelines and use the specified cable (part number 02173006) to maintain signal integrity over long distances.

Maintenance and Reliability

Routine inspection of the transducer and its mounting is recommended to ensure reliable operation. Check for any signs of physical damage or loose connections. The 316L stainless steel construction provides excellent corrosion resistance, reducing maintenance needs. Because the internal electronics are isolated from the case, the risk of ground loops is minimized, enhancing measurement accuracy.

Compatibility and Integration

The 190501-07-00-04 is designed to work with Bently Nevada monitoring systems and other vibration monitoring equipment that accepts standard velocity transducer inputs. Its output bias voltage and impedance characteristics are compatible with typical data acquisition systems. For detailed integration guidance, consult the official Bently Nevada documentation or contact Petro Auto Tech.

Frequently Asked Questions

What is the sensitivity of the 190501-07-00-04?

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).

Is the 190501-07-00-04 suitable for hazardous areas?

Yes, it has Intrinsically Safe and Non-Incendive certifications for Class I, Division 1 and 2, and Zone 0/1 areas.

What is the maximum cable length?

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

What mounting hardware is included?

The mounting hardware option 07 includes a plate stud 3/8-in 24 to 3/8-in 24.

Product Support and Availability

The 190501-07-00-04 is available from Petro Auto Tech, a trusted industrial automation parts supplier. Contact Petro Auto Tech for current availability and lead times. Our team can assist with product selection and technical inquiries.