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

Bently Nevada 190501-08-99-04 Velomitor CT Velocity Transducer – Intrinsically Safe for Critical Machinery

Key Electrical Specifications

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5% – factory calibrated for precise measurement.
• Frequency response: 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB.
• Wider response: 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB.
• Output bias voltage: 10.1 Vdc ± 1.0 Vdc on Pin A referenced to Pin B.
• Dynamic output impedance: <400 Ω typical for signal integrity.
• Amplitude linearity: ±2% up to 63.5 mm/s pk (2.5 in/s pk).

Environmental and Mechanical Limits

• Operating temperature: -40°C to +85°C (-40°F to +185°F) for harsh sites.
• Storage temperature: -40°C to +100°C (-40°F to +212°F).
• Shock limit: 5000 g pk maximum for high-impact resistance.
• Humidity tolerance: 100% condensing (non-submerged).
• Magnetic field susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60Hz.
• Case material: 316L stainless steel – excellent corrosion resistance.
• Connector: 2-pin 316L stainless steel MIL-C5015 top entry.
• Mounting torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
• Weight: <297 g (10.5 oz.) typical for light installation.

Hazardous Area Certifications for Model 190501

• CSA/NRTL/C (Class I, Division 1) – Groups A, B, C, D.
• ATEX/IECEx/CSA (Class I, Zone 0/1) – Ex ia IIC T4 gas protection.
• Non-incendive option: Ex nL IIC T4 / AEx nA T4 for Class I, Division 2.
• Temperature class: T4 @ -40°C ≤ Ta ≤ +100°C (-40°F ≤ Ta ≤ +212°F).
• Install per drawing 167536 for intrinsic safety compliance.

Performance & Additional Parameters

• Mounted resonant frequency: 9 kHz minimum (stud mounting).
• Transverse response: less than 5% of axial sensitivity for accurate data.
• Temperature sensitivity drift: -8% to +5% typical over full range.
• Base strain sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain).
• Broadband noise: 0.229 mm/s (0.009 in/s) pk.
• Grounding: Internal electronics isolate from the case eliminates ground loops.
• Maximum cable length: 305 metres (1,000 ft.) with part number 02173006.
• Mounting angle: any orientation – no position restrictions.

Frequently Asked Questions (FAQ)

• Q: What is the sensitivity of the 190501-08-99-04?
  A: It provides 3.94 mV/mm/s (100 mV/in/s) ±5%.
• Q: Can I use this transducer in Class I, Division 1 areas?
  A: Yes, it carries CSA/NRTL/C approval for Class I, Division 1, Groups A-D.
• Q: What is the maximum cable length without signal loss?
  A: 305 meters (1,000 feet) using Bently Nevada cable 02173006.
• Q: Does the sensor work at sub-zero temperatures?
  A: Yes, from -40°C to +85°C (-40°F to +185°F).
• Q: Is the 190501-08-99-04 available for immediate shipment?
  A: Yes, we have new original stock and ship within 5 days via DHL/FedEx/UPS.
• Q: What mounting hardware comes with option 08?
  A: A plate stud 3/8-in 24 to 1/2-in 20 for secure installation.
• Q: Can I return this item if it does not fit my machine?
  A: We accept returns within 30 days from delivery.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628
Partner NexAuto Technology Limited: https://www.nex-auto.com/