176449-05 3500/64M Bently Nevada Dynamic Pressure Monitor

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 3500/64M Dynamic Pressure Monitor is operating properly.
  • TX/RX LED: Indicates when the 3500/64M is communicating with other modules in the 3500 rack.
  • Bypass LED: Indicates when the 3500/64M is in Bypass Mode.
• Buffered Transducer Outputs:
  • The front of each monitor has one coaxial connector for each channel.
  • Each connector is short-circuit protected.
  • The 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 values are proportional to monitor full-scale.
• The monitor provides individual recorder values for each channel.
• Monitor operation is unaffected by short circuits on recorder outputs.

Voltage Compliance (current output)

• 0 to +12 Vdc range across load
• Load resistance is 0 to 600 Ω.

Resolution

• 0.3662 µA per bit
• ±0.25% error at room temperature
• -0.66 to +0.70% error over temperature range
• Update rate approximately 100 ms or less

Physical Information

• Dimensions (Height x Width x Depth): 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)
• Weight: 0.82 kg (1.8 lb)