Bently Nevada 140482-02 I/O Module External Termination

Specifications

Inputs

• Signal: Accepts from 1 to 4 pressure transducer signals.
• Input Impedance:
  • 3-wire transducer: 10 kΩ
  • 2-wire transducer: 1.5 MΩ to 3.5 MΩ typical
• Sensitivity:
  • Dynamic pressure: 100 mV/psi (1.45 mV/mBar).

Outputs

• Front Panel LEDs:
  • OK LED: Indicates when the system is operating properly.
  • TX/RX LED: Indicates communication between the I/O module and other modules in the 3500 rack.
  • Bypass LED: Indicates when the monitor is in Bypass Mode.
• Buffered Transducer Outputs:
  • Coaxial connectors for each channel (one per channel).
  • Short-circuit protection for each output.
  • Cascade Mode does not cascade the buffered transducer outputs.
• Output Impedance: 550 Ω.
• Transducer Supplies:
  • 3-wire: -24 Vdc
  • 2-wire: 3.3 mA current source @ 22 Vdc (nominal).
• Recorder Outputs:
  • +4 to +20 mA, proportional to the monitor’s full-scale.
  • Individual recorder values for each channel.
  • Short circuits on recorder outputs do not affect monitor operation.
• Voltage Compliance (Current Output):
  • 0 to +12 Vdc range across load, with a load resistance of 0 to 600 Ω.
  • Resolution: 0.3662 µA per bit.
  • Error: ±0.25% at room temperature, -0.66 to +0.70% over temperature range.
  • Update Rate: Approximately 100 ms or less.

Signal Conditioning

• Dynamic Pressure – Direct Filter:
  • Low Mode: 5 Hz to 4 kHz (if no low-pass filter is chosen, the range extends to approximately 5.285 kHz).
  • High Mode: 10 Hz to 14.75 kHz.

Physical Characteristics

• Dimensions:
  • Height: 241.3 mm (9.50 in)
  • Width: 24.4 mm (0.96 in)
  • Depth: 163.1 mm (6.42 in)
• Weight: 0.46 kg (1.01 lb)

Spares

• 140482-02 I/O Module External Termination

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