190501-08-99-04 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the 190501-08-99-04

When machinery vibration threatens uptime, the 190501-08-99-04 from Bently Nevada provides precise velocity measurement. This Velomitor CT Velocity Transducer is engineered for industrial rotating equipment. It helps you detect problems early, reducing costly downtime.

With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, this transducer delivers consistent output. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, and 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB. This range captures critical vibration signatures.

Key Features and Performance Metrics

• 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).
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted, except quick disconnect).
• Amplitude Linearity: ±2% to 63.5 mm/s pk (2.5 in/s pk).
• Transverse Response: Less than 5% of axial sensitivity.

These specs translate to accurate, repeatable readings. Consequently, you can trust the data for condition monitoring. Moreover, the internal electronics are isolated from the case, reducing ground loop issues.

Environmental Durability and Cost Savings

The 190501-08-99-04 operates from -40°C to +85°C (-40°F to +185°F). Storage range extends to -40°C to +100°C (-40°F to +212°F). This resilience means fewer replacements in harsh environments. Therefore, you save on maintenance and spare parts.

It withstands 5000 g pk maximum shock. Humidity limit is 100% condensing, non-submerged. Magnetic field susceptibility is <0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60Hz. These features ensure stable performance despite challenging conditions.

Installation and Mounting Flexibility

Mounting options include a plate stud 3/8-in 24 to 1/2-in 20. The unit comes with a 32-foot cable. Mounting torque is 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). You can mount it in any orientation, simplifying installation.

Case material is 316L stainless steel. The connector is a 2-pin 316L stainless steel MIL-C5015, top. Weight is <297 g (10.5 oz.), typical. These robust materials resist corrosion, extending service life.

Applications and Use Cases

Common applications include fans, pumps, motors, and gearboxes. The transducer monitors absolute bearing vibration. By detecting imbalance or misalignment early, you avoid catastrophic failures. For example, in a chemical plant, continuous monitoring prevents unplanned shutdowns. This proactive approach lowers overall operational costs.

Maintenance and Reliability

Routine inspection is straightforward. Periodically verify the cable and connector integrity. Ensure the mounting stud remains tight to the specified torque. Because the transducer has no moving parts, it requires minimal upkeep. This reliability reduces total cost of ownership.

Compatibility and Integration

The 190501-08-99-04 works with Bently Nevada monitoring systems. Its standard output bias voltage allows direct connection to compatible monitors. For integration, refer to the official manual. The included 32-foot cable simplifies wiring.

FAQ

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: The maximum cable length is 305 metres (1,000 ft.) of cable (part number 02173006) with no signal degradation.

Q: Is the transducer intrinsically safe?

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

Q: What is the mounting torque?

A: The mounting torque is 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

Product Support and Availability

The 190501-08-99-04 is available from Petro Auto Tech. We are an industrial automation parts supplier. Contact us for current lifecycle status and availability. We are ready to help you maintain your machinery.