Piezoelectric Accelerometer - 143-216-000-251 Vibro Meter

Vibro Meter 143-216-000-251 Piezoelectric Pressure Transducer

Key Features and Benefits

• Brand: Vibro Meter | Model: 143-216-000-251
• Extreme temperature range: -70 to 520°C operation
• High-pressure capability: up to 350 bar overload capacity
• Excellent sensitivity: 200 pC/bar for precise measurements
• Wide frequency range: 2 Hz to 15 kHz ±5% response
• Explosion-proof certified for hazardous atmospheres
• Internal case insulation ensures electrical isolation
• Mineral insulated cable for high-temperature service

Technical Specifications

• Sensitivity: 200 pC/bar (13.8 pC/psi) typical at 2 Hz
• Dynamic measuring range: 0.0005 to 250 bar
• Frequency response: 2 to 15000 Hz ±5% bandwidth
• High resonant frequency: >80 kHz for wide dynamic range
• Excellent linearity: <±1% over entire measuring range
• Low acceleration sensitivity: ≤0.5 pC/g (0.0025 bar/g)
• Overload capacity: 350 bar (5076 psi) maximum pressure
• No external power required - passive operation

Environmental Performance

• Continuous operation: -54 to 470°C (-65 to 878°F)
• Extreme applications: -70 to 520°C (-94 to 968°F)
• Hermetically welded NIMONIC® alloy 90 housing
• INCONEL® alloy 600 mineral insulated cable
• Radiation resistance: 10¹⁰ erg/g gamma, 10¹⁷ n/cm² neutron
• Shock resistance: 2000 g peak (half sine, 1 ms)
• Internal insulation: >10⁹ Ω at room temperature

Electrical Characteristics

• Signal transmission: 2-pole system insulated from casing
• Charge output requires external charge converter
• Capacitance: 320 pF pole to pole for transducer
• Isolation capacitance: 13 pF pole to casing for transducer
• Cable adds 200 pF/m pole to pole, 300 pF/m pole to casing
• Compatible with IPC 704 signal conditioner

Mechanical Construction

• Ultra-lightweight design: only 12 g transducer weight
• Mineral insulated cable: 25 g/m for easy installation
• Hermetically welded construction ensures leak-tight seal
• NIMONIC® alloy 90 provides excellent corrosion resistance
• Connector options: LEMO or Vibro-Meter high-temperature
• Certified for use in potentially explosive atmospheres

Frequently Asked Questions

What makes the 143-216-000-251 suitable for gas turbine applications?

• The 143-216-000-251 handles extreme temperatures up to 520°C and pressures to 350 bar. Its robust construction and wide frequency range make it ideal for gas turbine combustion monitoring and development testing.

What connector options are available?

• The 143-216-000-251 offers LEMO connectors for temperatures to 155°C or Vibro-Meter high-temperature connectors for extreme applications up to 650°C. Choose based on your specific temperature requirements.

How does the mineral insulated cable benefit performance?

• The mineral insulated cable on the 143-216-000-251 maintains electrical integrity at high temperatures. This specialized cable construction ensures reliable signal transmission in extreme environment applications.

What is the advantage of the 80 kHz resonant frequency?

• The high resonant frequency (>80 kHz) of the 143-216-000-251provides excellent dynamic response. This allows accurate measurement of rapid pressure fluctuations in combustion and blast monitoring applications.

Can this transducer measure very low pressures?

• Yes, the 143-216-000-251 has an exceptional dynamic range from 0.0005 to 250 bar. This enables detection of minute pressure variations while still handling extreme pressure spikes up to 350 bar.

Contact our technical sales team for extreme environment solutions: sales@nex-auto.com