190501-02-00-01 | Bently Nevada 3.94 mV/mm/s Velomitor CT

Introduction to the Bently Nevada 190501-02-00-01

In rotating machinery, unplanned vibration can lead to costly downtime and equipment damage. The 190501-02-00-01 from Bently Nevada provides a dependable solution for continuous velocity monitoring. This Velomitor CT transducer is engineered for industrial environments where accuracy and durability are essential.

With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, the 190501-02-00-01 delivers precise velocity measurements. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, making it suitable for a wide range of rotating equipment. Additionally, the transducer operates within a temperature range of -40°C to +85°C (-40°F to +185°F), ensuring performance in harsh conditions.

Key Features and Technical Specifications

The 190501-02-00-01 offers several features that enhance its reliability and ease of use. Below are the core specifications extracted from the official datasheet:

• 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.
• 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 (0.017 in/s/μstrain).
• Maximum Cable Length: 305 metres (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.
• Humidity Limit: 100% condensing, non-submerged.
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60 Hz.
• Case Material: 316L stainless steel.
• Connector: 2-pin 316L stainless steel MIL-C5015, top.
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
• Weight: <297 g (10.5 oz.), typical.

One distinctive feature is the internal electronics isolated from the case, which minimizes ground loop issues and enhances signal integrity. This design contributes to reliable performance in electrically noisy environments.

Applications and Use Cases

The 190501-02-00-01 is ideal for monitoring vibration on pumps, motors, fans, and other rotating machinery. For example, in a petrochemical plant, this transducer can be installed on a critical pump to detect early signs of bearing wear. Consequently, maintenance teams can schedule repairs before a catastrophic failure occurs, reducing downtime and repair costs.

Furthermore, its intrinsic safety approvals (Ex ia IIC T4, AEx ia IIC T4) allow installation in hazardous areas classified as Class I, Division 1, Groups A, B, C, D. This makes the transducer suitable for oil and gas, chemical, and pharmaceutical facilities where explosive atmospheres may exist.

Installation and Setup

Proper installation is crucial for accurate vibration measurement. The 190501-02-00-01 comes with a stud mounting option (3/8-in 24 to 1/2-in 20) and uses a MIL-C-5015 connection interface. When mounting, ensure the mounting surface is clean and flat. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) to secure the transducer. The transducer can be mounted in any orientation, offering flexibility in tight spaces.

For best results, use the recommended cable (part number 02173006) up to 305 metres (1,000 ft.) without signal degradation. Verify that the cable is routed away from high-voltage lines to avoid electromagnetic interference.

Maintenance and Reliability

Regular inspection of the transducer and its mounting is recommended to ensure long-term reliability. Check for any signs of physical damage or corrosion, especially in harsh environments. The 316L stainless steel case provides excellent resistance to corrosion, extending the service life.

Periodically verify the output bias voltage (10.1 Vdc ± 1.0 Vdc) to confirm the internal electronics are functioning correctly. If readings deviate, consult the Bently Nevada manual or contact Petro Auto Tech for support.

Compatibility and Integration

The 190501-02-00-01 is designed to work with Bently Nevada monitoring systems, such as the 3500 series and Scope 6000. Its standard MIL-C-5015 connector ensures easy integration with existing cabling. The transducer's low output impedance (<400 Ω) allows it to drive long cable runs without signal loss, making it compatible with most data acquisition systems.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-02-00-01?

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

Q: Can the 190501-02-00-01 be used in hazardous areas?

A: Yes, it has intrinsic safety approvals including Ex ia IIC T4 and AEx ia IIC T4, suitable for Class I, Division 1, Groups A, B, C, D.

Q: What is the maximum cable length for this transducer?

A: The maximum cable length is 305 metres (1,000 ft.) using cable part number 02173006.

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 the transducer be mounted?

A: It can be mounted in any orientation using the stud mounting option, with a recommended torque of 4.5 N-m ± 0.6 N-m.

Product Support and Availability

The Bently Nevada 190501-02-00-01 is available through Petro Auto Tech. Please verify current lifecycle status and availability with Petro Auto Tech before ordering. Our team can assist with product selection and technical inquiries.