330500-05-04 Bently Nevada Velomitor Piezo Sensor

Bently Nevada 330500-05-04 Velomitor Piezo-velocity Sensor – Precision Vibration Monitoring

• Manufacturer: Bently Nevada. The 330500-05-04 series ensures high-quality vibration monitoring. This model suits turbines, compressors, and pumps.
• Model Number: 330500-05-04 includes -05 mounting thread option (unavailable for 330500). For 1/4-18 NPT mounting, order 330525. The -04 approval covers CSA and ATEX for hazardous locations.
• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%. This standard output matches most monitoring systems. The sensor provides a linear response from low to high frequencies.
• Frequency Response: 4.5 Hz to 5 kHz (270 to 300 kcpm) ±3.0 dB. For tighter accuracy, 6.0 Hz to 2.5 kHz (360 to 150 kcpm) ±0.9 dB. This range covers common machine speeds.
• Velocity Range: 1270 mm/s (50 in/s) peak. The sensor handles high-amplitude vibrations without distortion. It suits sudden impact or start-up transients.
• Amplitude Linearity: ±2% up to 152 mm/s (6 in/s) peak. This specification guarantees low signal error. You get accurate readings across the measurement range.
• Transverse Sensitivity: Less than 5% of the main sensitivity. The sensor rejects cross-axis motion well. This feature improves measurement fidelity.
• Output Bias Voltage: -12 ±3.0 VDC referenced to Pin A. This bias allows two-wire interface compatibility. The sensor operates with standard power supplies.

Environmental and Physical Specifications

• Operating Temperature: -55°C to 121°C (-67°F to 250°F). The sensor withstands extreme thermal conditions. Its hermetically sealed case prevents moisture ingress.
• Shock Survivability: 5,000 g peak. This rating ensures durability during installation or machine faults. The sensor resists mechanical damage.
• Relative Humidity: Up to 100% non-submerged. The 316L stainless steel construction resists corrosion. You can use it in washdown areas or humid environments.
• Base Strain Sensitivity: 0.005 in/s/mstrain. The sensor minimizes errors from mounting surface deformation. This property maintains signal integrity.
• Magnetic Field Susceptibility: <51 min/s/gauss at 50 gauss, 50-60 Hz. The sensor rejects common electrical interference. It works near motors or generators reliably.
• Weight and Dimensions: 142 grams (5.0 oz) typical. Diameter is 25.3 mm (0.995 in). Height is 63.2 mm (2.49 in). The compact size fits tight machine locations.
• Case Material: 316L stainless steel with a hermetically sealed 2-pin Mil-C-5015 connector. The case isolates electrically from ground. This design avoids ground loops.
• Mounting Torque: 32-46 kg cm (24-40 in-lb) max. Do not over-tighten. Proper torque ensures reliable case contact and frequency response.
• Polarity: When the case moves toward the connector, Pin A becomes positive relative to Pin B. Follow this rule for correct phase measurement.

Frequently Asked Questions (FAQ)

• Q: Is the 330500-05-04 a new original product?
  A: Yes, we supply only brand new and authentic Bently Nevada units. No refurbished or counterfeit items.
• Q: How does the -05 mounting thread option work for 330500?
  A: The -05 option is unavailable for model 330500. For 1/4-18 NPT mounting, please order 330525 instead.
• Q: Do you have this sensor in stock?
  A: Yes, we keep the 330500-05-04 in our warehouse. Most orders ship within 5 days after payment confirmation.
• Q: What shipping methods do you use?
  A: We use FedEx, UPS, and DHL for fast global delivery. You can choose your preferred carrier.
• Q: Can I return the sensor within 30 days?
  A: Yes, we support a 30-day return policy for unused items in original packaging. Contact us for a return authorization.
• Q: What is the typical broadband noise floor of this sensor?
  A: The nominal noise floor is 0.004 mm/s (160 μin/s) rms from 4.5 Hz to 5 kHz. This low noise allows small vibration measurements.
• Q: Does the sensor require external grounding?
  A: No, the case isolates from ground. You do not need a separate ground wire. Simply connect the two-pin connector.
• Q: Can I use the 330500 above 121°C?
  A: Operating above 121°C may cause false readings. Do not exceed the -55°C to 121°C range.

For technical support or volume pricing, contact us: sales@nex-auto.com or +86 153 9242 9628 (WhatsApp). Partner with NexAuto Technology Limited for reliable industrial sensors.