Bently Nevada|330525-05|Piezoelectric Accelerometer

Description
The Bently Nevada 330525-05 is a piezoelectric accelerometer for machinery vibration monitoring, featuring solid-state design and flexible mounting.

Features

• Hermetically sealed 316L stainless steel housing
• Built-in electronics for reliable performance
• Suitable for hazardous environments (ATEX/IECEx certified)
• No mechanical wear due to solid-state construction

Technical Specifications

Electrical

• Sensitivity: 3.94 mV/mm/s (±5%)
• Frequency response:
  - 4.5 Hz – 5 kHz (±3.0 dB)
  - 6.0 Hz – 2.5 kHz (±0.9 dB)
• Velocity range: 1270 mm/s peak (50 in/s)
• Output bias voltage: -12 ±3.0 VDC
• Noise floor: 0.004 mm/s RMS (4.5 Hz – 5 kHz)

Environmental

• Operating temperature: -55°C to +121°C
• Shock survivability: 5000 g peak
• Humidity tolerance: 100% non-submerged

Physical

• Weight: 142 g (5.0 oz)
• Dimensions: 25.3 mm diameter × 63.2 mm height
• Mounting torque: 32–46 kg·cm

Hazardous Area Certifications

• ATEX/IECEx: Ex ia IIC T4 (Zone 0/1), Ex nL IIC T4 (Zone 2)
• Entity parameters:
  - Ui = 28V, Ii = 150mA, Pi = 0.84W (Zone 0/1)
  - Ci ≤ 10.8 nF, Li = 0.