190501-08-00-00 | Bently Nevada 100 mV/in/s Velocity Transducer

Introduction: The Evolution of Vibration Monitoring

For decades, industrial facilities have relied on accurate vibration monitoring to protect rotating machinery. Early systems were bulky and limited, but modern transducers like the 190501-08-00-00 from Bently Nevada have transformed the field. This Velomitor CT velocity transducer offers a compact, rugged design that meets the demands of today's predictive maintenance programs.

With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, the 190501-08-00-00 provides precise velocity measurements. Its frequency response from 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB ensures accurate readings across a wide range of machine speeds. This makes it an ideal choice for pumps, motors, fans, and other rotating equipment where early fault detection is critical.

Key Features & Technical Specifications

The 190501-08-00-00 is engineered for reliability and performance. Below are the core specifications that define its capabilities:

• 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, except quick disconnect)
• 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.) of cable (part number 02173006) with no signal degradation

One distinctive feature is the output bias voltage of 10.1 Vdc ± 1.0 Vdc. This stable reference simplifies integration with monitoring systems, ensuring consistent signal interpretation. Additionally, the maximum cable length of 305 metres allows flexible installation even in large facilities.

Environmental Durability

The 190501-08-00-00 is built to withstand harsh industrial environments. Its operating temperature range is -40°C to +85°C (-40°F to +185°F), and it can be stored from -40°C to +100°C (-40°F to +212°F). With a shock limit of 5000 g pk maximum and a humidity limit of 100% condensing (non-submerged), this transducer is robust enough for demanding applications.

Magnetic field susceptibility is <0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz, ensuring accurate readings even near electrical equipment. The case material is 316L stainless steel, providing excellent corrosion resistance. The connector is a 2-pin 316L stainless steel MIL-C-5015 top-mounted type, and the mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

Installation & Mounting

Proper installation is essential for optimal performance. The 190501-08-00-00 comes with a plate stud mounting option (3/8-in 24 to 1/2-in 20) and a MIL-C-5015 connection interface. The mounting surface is 33 mm diameter (1.3 in), and the height is 82 mm (3.2 in). The transducer can be mounted in any orientation, offering flexibility for tight spaces.

When installing, ensure the mounting torque is within the specified range to avoid damaging the transducer or compromising its accuracy. Polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer. This clarity simplifies wiring and reduces setup errors.

Applications & Use Cases

The 190501-08-00-00 is widely used in industries such as oil and gas, power generation, and manufacturing. It is particularly effective for monitoring rotating machinery like turbines, compressors, and gearboxes. Its wide frequency response and high sensitivity make it suitable for both low-speed and high-speed equipment.

For example, in a petrochemical plant, this transducer can detect early signs of bearing wear or unbalance, allowing maintenance teams to schedule repairs before catastrophic failure occurs. This proactive approach reduces downtime and saves costs—a key benefit of investing in reliable vibration monitoring.

Maintenance & Reliability

To ensure long-term reliability, periodic inspection of the transducer and its cable is recommended. Check for any physical damage, loose connections, or signs of corrosion. Although the internal electronics are isolated from the case, it is still wise to verify that the mounting remains secure and the connector is clean.

The 316L stainless steel construction provides excellent resistance to corrosive environments, extending the service life. With proper care, the 190501-08-00-00 can deliver years of accurate data, making it a cost-effective solution for continuous monitoring.

Compatibility & Integration

The 190501-08-00-00 is designed to work seamlessly with Bently Nevada monitoring systems and other data acquisition equipment. Its standard MIL-C-5015 connection interface ensures easy integration with existing cabling. The output bias voltage and dynamic impedance are optimized for compatibility with most vibration monitoring modules.

For new installations, the maximum cable length of 305 metres allows flexibility in placing the transducer far from the monitoring panel without signal loss. This is particularly useful in large plants where equipment is spread out.

FAQ about 190501-08-00-00

Q: What is the sensitivity of the 190501-08-00-00?

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

Q: What is the operating temperature range?

A: It operates from -40°C to +85°C (-40°F to +185°F).

Q: Can the transducer be mounted in any orientation?

A: Yes, the mounting angle is any orientation.

Q: What is the maximum cable length?

A: The maximum cable length is 305 metres (1,000 ft.) with no signal degradation.

Q: What is the output bias voltage?

A: The output bias voltage is 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B.

Product Support & Availability

The 190501-08-00-00 is available through Petro Auto Tech, a trusted industrial automation parts supplier. We ensure genuine products and prompt delivery. Contact our team for availability and pricing. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.