Piezoelectric vibration speed sensor BBVM-VS250

dynamicfor machine monitoringfor machine condition monitoring

Product overview
The BBVM-VS250 is an industrial IEPE piezoelectric velocity sensor designed for absolute vibration measurement on bearing housings, machine casings and structural components. It integrates a PZT sensing element, a low-noise miniature charge amplifier and a precision integration circuit in a stainless-steel housing. Its solid-state construction contains no moving parts and is suitable for long-term industrial vibration monitoring.

Key specifications
Measurement: Vibration velocity
Sensitivity: 250 mV/(mm/s), customizable
Frequency response: 3–3,000 Hz (±3 dB)
Measurement range: ±200 mm/s
Maximum shock: 5,000 g
Sensing element: PZT piezoelectric ceramic
Sensing structure: Shear mode

Electrical specifications
Supply voltage: 18–28 VDC
Constant-current excitation: 2–10 mA
Output impedance: <500 Ω
Insulation resistance: >10⁸ Ω

Mechanical and environmental specifications
Housing material: Stainless steel
Sealing: Laser-welded stainless-steel housing
Weight: 80 g
Mounting thread: M6; 1/4 in optional
Standard connector: 2-pin MIL-C5015
Mounting torque: 2.7–6.8 N·m
Operating temperature: −40 to +120 °C

Output options
Standard connector: 2-pin MIL-C5015 connector
Integral waterproof cable: Rated submersible depth: 152 m
Integral armored cable: Armored integral cable for enhanced mechanical protection

Wiring
Terminal A: Power supply; red conductor
Terminal B: Common; black conductor
Terminal COM: Shield

Mounting options

• M6 × 1 mounting screw
• 1/4 in mounting screw
• 1/4 in-to-M6 conversion screw

Calibration

• Calibration certificate with frequency-response curve

Typical applications

• Absolute vibration measurement of bearing housings
• Machine-casing vibration monitoring
• Structural vibration measurement
• Long-term industrial condition monitoring

Caractéristiques / spécifications techniques

• Type: Industrial IEPE piezoelectric velocity sensor
• Model: BBVM-VS250
• Measurement: Vibration velocity
• Sensitivity: 250 mV/(mm/s), customizable
• Frequency response: 3–3,000 Hz (±3 dB)
• Measurement range: ±200 mm/s
• Maximum shock resistance: 5,000 g
• Sensing element: PZT piezoelectric ceramic (shear mode)
• Supply voltage: 18–28 VDC
• Excitation current: 2–10 mA constant-current
• Output impedance: <500 Ω
• Insulation resistance: >10⁸ Ω
• Housing: Laser-welded stainless steel
• Weight: 80 g
• Mounting thread: M6 (1/4 in optional)
• Standard connector: 2-pin MIL-C5015
• Mounting torque: 2.7–6.8 N·m
• Operating temperature range: −40 to +120 °C
• Optional outputs: waterproof integral cable (submersible to 152 m), integral armored cable
• Delivered with: Calibration certificate with frequency-response curve