330500-04-02 Bently Nevada Velomitor Sensor ATEX 1/4-20 UNC

Bently Nevada 330500-04-02 Velomitor Piezo-velocity Sensor Overview

• This sensor uses piezoelectric technology to measure absolute case velocity. It outputs a voltage signal directly proportional to the vibration velocity.
• You get a stable sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5% at 100 Hz from +20°C to +30°C.
• The 330500 series offers a wide frequency response of 4.5 Hz to 5 kHz (270 cpm to 300 kcpm) ±3.0 dB.
• For critical applications, the response tightens to 6.0 Hz to 2.5 kHz (360 cpm to 150 kcpm) ±0.9 dB.

Key Technical Specifications

• Velocity Range: The sensor measures up to 1270 mm/s (50 in/s) peak vibration levels.
• Amplitude Linearity: It maintains ±2% linearity up to 152 mm/s (6 in/s) peak.
• Mounted Resonant Frequency: The design ensures a resonant frequency greater than 12 kHz.
• Output Bias Voltage: You will see -12 ±3.0 VDC referenced to Pin A over temperature.
• Dynamic Output Impedance: The output stays stable with impedance less than 2400 Ω.
• Broadband Noise Floor: The noise floor is only 0.004 mm/s (160 μin/s) rms nominal from 4.5 Hz to 5 kHz.
• Grounding: The Bently Nevada 330500 features case isolation to prevent ground loops.
• Maximum Cable Length: You can use up to 305 meters (1,000 feet) of part number 02173006 cable without signal loss.

Environmental and Physical Limits

• Operating Temperature Range: The sensor works reliably from -55°C to 121°C (-67°F to 250°F).
• Temperature Sensitivity: Expect typical variation of -14% to +7.5% over the full operating range.
• Shock Survivability: It withstands 5,000 g peak maximum shock without damage.
• Relative Humidity: The hermetically-sealed case tolerates 100% humidity as long as not submerged.
• Base Strain Sensitivity: The unit shows 0.005 in/s per mstrain typical.
• Magnetic Field Susceptibility: It resists interference with <51 min/s per gauss at 50 gauss, 50-60Hz.
• Weight: The sensor weighs 142 grams (5.0 oz) typical.
• Diameter and Height: Physical dimensions are 25.3 mm (0.995 in) diameter and 63.2 mm (2.49 in) height.
• Case Material: The housing uses durable 316L stainless steel.
• Connector Type: It features a 2-pin Mil-C-5015 hermetically-sealed connector with 316L stainless steel shell.

Frequently Asked Questions (FAQ)

• Q: Is the 330500-04-02 brand new and original?
  A: Yes, we supply only 100% brand new, original Bently Nevada sensors.
• Q: Do you have this sensor in stock?
  A: Yes, we keep the 330500 model in stock for immediate orders.
• Q: What is the operating temperature range of this Velomitor?
  A: It operates reliably from -55°C to 121°C (-67°F to 250°F).
• Q: Can I use this sensor in explosive atmospheres?
  A: Yes, the -02 option gives you ATEX Ex ia IIC T4 approval for hazardous areas.
• Q: What is the sensitivity of the 330500-04-02?
  A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5% at 100 Hz.
• Q: How long does shipping take?
  A: We dispatch within 5 days. Delivery time depends on your chosen carrier (FedEx, UPS, DHL).
• Q: What is your return policy?
  A: We accept returns within 30 days from delivery for unused items.
• Q: What cable length works best with this sensor?
  A: You can use up to 305 meters (1,000 feet) of Bently Nevada cable 02173006 without signal loss.

For inquiries, contact us at sales@nex-auto.com or call +86 153 9242 9628 (WhatsApp).

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