190501-08-99-04 | Bently Nevada 100 mV/in/s Velocity Transducer

Why Choose the Bently Nevada 190501-08-99-04?

When machinery vibration threatens uptime, the 190501-08-99-04 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 (100 mV/in/s) ±5%, it delivers consistent performance across a wide frequency range.

Key Features & Technical Specifications

• 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 the operating temperature range.
• Transverse Response: Less than 5% of the 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 are isolated from case.
• Maximum Cable Length: 305 metres (1,000 ft.) of cable (part number 02173006) with no degradation of signal.

Environmental Durability

The 190501-08-99-04 is built to withstand harsh conditions. It operates from -40°C to +85°C (-40°F to +185°F) and can be stored from -40°C to +100°C (-40°F to +212°F). With a shock limit of 5000 g pk and 100% condensing humidity tolerance (non-submerged), it remains reliable in demanding settings. Magnetic field susceptibility is <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60 Hz.

Mechanical Specifications

• Weight: <297 g (10.5 oz.), typical.
• Mounting Surface: 33 mm diameter (1.3 in diameter).
• Height: 82 mm (3.2 in).
• 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).
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.
• Mounting Angle: Any orientation.

Installation and Mounting

This transducer includes a plate stud mounting option (3/8-in 24 to 1/2-in 20) and comes with a 32-foot cable. The mounting torque should be applied carefully to avoid damage. The internal electronics are isolated from the case, simplifying grounding considerations.

Maintenance and Reliability

Routine inspection of the mounting integrity and cable condition is recommended to ensure long-term accuracy. The 316L stainless steel case resists corrosion, and the sealed design protects against humidity. Regular verification of output bias voltage can help detect potential issues early.

Compatibility and Integration

The 190501-08-99-04 is designed for use with Bently Nevada monitoring systems. Its standard velocity output (100 mV/in/s) makes it compatible with most vibration monitoring equipment. The included cable length of 305 meters (1000 ft.) allows flexible installation without signal degradation.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-08-99-04?

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: What is the maximum cable length?

A: Up to 305 metres (1,000 ft.) with part number 02173006 cable.

Q: Is the transducer intrinsically safe?

A: Yes, it has agency approval option 04 with CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) certifications.

Product Support and Availability

The 190501-08-99-04 is available through Petro Auto Tech, your trusted industrial automation parts supplier. Contact us for current availability and lifecycle status before ordering.