Bently Nevada 143729-01 Cylinder Pressure I/O Module

The Bently Nevada 143729-01 is a Cylinder Pressure I/O Module designed for precise measurement and signal conditioning of cylinder pressures. It is compatible with Bently-approved third-party pressure transducers and features internal terminations for easy integration into monitoring systems.

Key Specifications

• Signal Conditioning
  • Frequency Response: 0 to 5.5 kHz for all configured pressure channels
  • Pressure Accuracy:
    • ±0.5% of transducer full-range at +25°C (77°F)
    • ±1.0% over –30°C to +65°C (-22°F to 150°F)
• Measured Variables: Cylinder Pressure, Discharge Pressure, Suction Pressure, Maximum and Minimum Pressure, Compression Ratio, Peak Rod Compression/Tension, Degree of Rod Reversal
• Input Impedance: 50 kΩ for Cylinder Pressure I/O

Power and Output

• Power Consumption: 7.8 Watts at full transducer load
• Buffered Transducer Outputs: Coaxial connectors (short-circuit protected) with inverted and offset signal (-2.265 Vdc)
• Output Impedance: 550 Ω
• Transducer Power Supply: +23.0 ± 0.8 Vdc with 24.5 mA current limit per channel

Environmental and Physical Details

• Operating Temperature: -30°C to +65°C (-22°F to 150°F)
• Dimensions: 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
• Weight: 0.20 kg (0.44 lb.)

Front Panel LEDs

• OK LED: Indicates proper operation
• TX/RX LED: Shows communication with other 3500 rack modules
• Bypass LED: Lights up when in Bypass Mode

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