Bently Nevada 176449-08 | 3500/72M Recip Rod Position Monitor

Description

The Bently Nevada 3500/72M Recip Rod Position Monitor is a four-channel monitoring module designed for reciprocating compressors. It accepts input from proximity transducers, conditions the signal, and provides dynamic and static position measurements. The module features user-programmable alarms for enhanced machine protection and monitoring.

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Key Features

• Four-channel input for proximity transducers
• Measures Rod Position, Rod Drop, and Hyper Compressor values
• Programmable alarms for proactive monitoring
• Front panel status LEDs for system diagnostics
• Buffered transducer outputs for signal integrity
• Compatible with Bently Nevada 3500 Series Racks

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Technical Specifications

Inputs

• Accepts 1 to 4 proximity probe signals
• Input Impedance: 10 kΩ
• Nominal Scale Factor:
  • Rod Position: 0.79 mV/µm (20 mV/mil), 3.94 mV/µm (100 mV/mil), 7.87 mV/µm (200 mV/mil)
  • Rod Drop & Hyper Compressor: 3.94 mV/µm (100 mV/mil) or 7.87 mV/µm (200 mV/mil)

Power Consumption

• 7.7 watts (nominal)

Outputs

• Front Panel LEDs:
  • OK LED – Indicates proper operation
  • TX/RX LED – Communication status within the 3500 rack
  • Bypass LED – Indicates when the module is in bypass mode
• Buffered Transducer Outputs:
  • Each channel has a coaxial connector
  • Short-circuit protected
  • Impedance: 510 Ω
  • Transducer Power Supply: -24 VDC

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Data Values & Measurements

The 3500/72M provides comprehensive measurement data, including:

• ✔ Rod Position (Single Channel): Position Magnitude, Position Angle, Crank Angle, Pk-Pk Amplitude, Gap, 1X/2X Amplitudes
• ✔ Rod Position (Pair Channel): Same as single-channel, measured in pairs
• ✔ Rod Drop Channel: Average Piston Position, Probe Gap, Instantaneous Piston Position
• ✔ Hyper Channel: Pk-Pk Displacement, Gap, 1X/2X Amplitudes

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Physical & Mechanical Specifications

• Module Dimensions:
  • Height: 241.3 mm (9.50 in)
  • Width: 24.4 mm (0.96 in)
  • Depth: 241.8 mm (9.52 in)
• Weight: 0.91 kg (2.0 lb)

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Contact Us

• Phone: +86-15915488782
• Email: uma@meloauto.com
• WhatsApp: +8615915488782
• Business Hours: 24/7 service
• Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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