190501-07-00-01 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the Bently Nevada 190501-07-00-01

When machinery vibration threatens uptime, the 190501-07-00-01 from Bently Nevada provides reliable, continuous velocity measurement. This Velomitor CT velocity transducer is engineered for industrial rotating equipment where early fault detection is critical. With a sensitivity of 3.94 mV/mm/s (±5%), it delivers accurate data for predictive maintenance programs.

This model features a plate stud mounting option (3/8-in 24 to 3/8-in 24) and a MIL-C-5015 connection interface. The agency approval option 01 includes CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) certifications, making it suitable for hazardous environments. Its 316L stainless steel case ensures durability in demanding industrial settings.

Key Features and Technical Specifications

The 190501-07-00-01 offers a frequency response of 3.0 Hz to 900 Hz (±1.0 dB) and 1.5 Hz to 1.0 kHz (±3.0 dB), covering typical machine vibration ranges. Its mounted resonant frequency is 9 kHz minimum, ensuring accurate measurement without resonance interference.

• 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
• 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 part number 02173006
• Operating Temperature: -40°C to +85°C
• Storage Temperature: -40°C to +100°C
• Shock Limit: 5000 g pk maximum
• Humidity Limit: 100% condensing, non-submerged
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss @ 50 gauss, 50-60 Hz
• Weight: 0.297 kg (10.5 oz) typical
• Mounting Surface: 33 mm diameter
• Height: 82 mm
• Case Material: 316L stainless steel
• Connector: 2-pin 316L stainless steel MIL-C-5015, top
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf)

Applications and Use Cases

The 190501-07-00-01 is ideal for monitoring pumps, motors, fans, and other rotating machinery in industries such as oil and gas, power generation, and manufacturing. Its hazardous-area approvals allow installation in explosive atmospheres where reliable vibration data is essential for safety and efficiency.

Because the transducer measures absolute velocity, it is well-suited for casing vibration monitoring on compressors and turbines. The internal electronics are isolated from the case, reducing ground loop issues and improving signal integrity. This feature is particularly valuable in large plants with complex grounding systems.

Installation and Setup

Proper mounting is critical for accurate measurements. The plate stud option (3/8-in 24 threads) provides a rigid connection to the machine surface. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m to ensure consistent coupling without over-stressing the transducer.

The MIL-C-5015 connector simplifies wiring. Connect Pin A and Pin B as per the polarity note: Pin A goes positive with respect to Pin B when velocity is directed from base to top. Any mounting orientation is acceptable, offering flexibility in tight spaces.

Maintenance and Reliability

With no moving parts, the 190501-07-00-01 requires minimal maintenance. However, periodic inspection of the mounting stud and connector is recommended to prevent loosening or corrosion. The 316L stainless steel case withstands harsh environments, and the sealed design protects internal electronics from moisture and contaminants.

Given its robust construction and broad temperature range, this transducer delivers long service life, reducing replacement costs and downtime. Regular calibration checks, as per manufacturer guidelines, ensure continued accuracy.

Compatibility and Integration

The 190501-07-00-01 is designed to work with Bently Nevada monitoring systems, but its standard analog output (velocity signal) allows integration with most vibration monitoring equipment. The maximum cable length of 305 meters enables remote mounting of monitoring electronics.

For hazardous area installations, the intrinsic safety approvals (Ex ia IIC T4, AEx ia IIC T4) ensure compatibility with approved safety barriers. Always install per drawing 167536 to maintain certification compliance.

Troubleshooting Common Issues

If the output signal is absent or erratic, first check the cable connections and continuity. Ensure the mounting stud is tight and the transducer is not loose. Verify that the bias voltage at Pin A is within 10.1 Vdc ± 1.0 Vdc; deviations may indicate internal damage.

Excessive noise in the signal could be due to electromagnetic interference. Keep the cable away from high-voltage lines and ensure proper grounding. The transducer's low magnetic field susceptibility (<0.0068 mm/s/gauss) minimizes interference from nearby motors.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-07-00-01?

A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) with a tolerance of ±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, making it suitable for explosive atmospheres.

Q: What is the maximum cable length?

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

Q: What is the operating temperature range?

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

Q: How should I mount the transducer?

A: Use the plate stud (3/8-in 24 threads) and tighten to 4.5 N-m ± 0.6 N-m. Any orientation is acceptable.

Product Support and Availability

The 190501-07-00-01 is available through Petro Auto Tech, an industrial automation parts supplier. Contact Petro Auto Tech for current pricing, lead times, and technical support. Ensure you verify the latest lifecycle status before ordering.