Configured for multi-channel proximity transducer data acquisition in 3500 Machinery Condition Monitoring platforms, the Bently Nevada 3500/40-01-R0 (3500/40M Proximitor Monitor) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

• 3500/40: Base model designation for the Proximitor monitor module.
• 01: I/O module type option specifying internal termination without internal barriers.
• R0: Factory revision and mounting identifier associated with standard system builds.

Hardware Specifications

Rotor Dynamics & Signal Conditioning

• Eddy-Current Probe Scaling: Processes inputs from 1 to 4 proximity transducers, translating raw signals using selectable scaling factors such as 3.94 mV/um (100 mV/mil) or 7.87 mV/um (200 mV/mil) for radial vibration, thrust, and eccentricity measurements.
• Gap Voltage Validation: Continuously monitors transducer gap voltages against -10 VDC targets to ensure linear displacement tracking and alert operators to transducer mechanical displacement or electrical drift.
• Cross-Talk Suppression & Filtering: Utilizes advanced vector filtering, constant Q notch filters, and dedicated direct/gap filter loops to isolate running speed components (1X, 2X, Not 1X, and Smax) while eliminating signal cross-talk across adjacent channels.

Ordering Info

• 1 x 3500/40M Main Monitor Module (Part Number 176449-01)
• 1 x Proximitor I/O Module with Internal Terminations (Part Number 125680-01)
• 1 x 3500/40M Monitor User Guide (Document 143488)
• 1 x 8-pin Euro-style Internal I/O Connector Header

Field Installation Guidelines

• Rack Slot Allocation: Install the main monitor module in any available front slot to the right of the Transient Data Interface (TDI), and position the corresponding I/O module in the rear slot directly aligned with the main board.
• Signal Shielding and Grounding: Terminate all coaxial signal cable shields at the designated chassis ground studs to prevent electromagnetic interference and maintain measurement integrity for buffered outputs.
• Firmware Compatibility Check: Ensure the 3500 rack utilizes software revision 2.50 or later for 3500/01, version 2.20 or later for 3500/02, and version 1.21 or later for 3500/03 prior to powering on the system.

Frequently Asked Questions

• How many proximity transducer channels does the 3500/40M monitor accept?

  The module accepts input signals from 1 to 4 proximity transducers depending on channel configuration.

• What is the typical power consumption of the 3500/40M monitor?

  The typical power consumption is 7.7 watts.

• What voltage is supplied to power the connected proximity transducers?

  The module provides a regulated transducer power supply of -24 Vdc.

• What is the input impedance of the standard I/O module?

  The standard I/O input impedance for proximitor and acceleration inputs is 10 kΩ.

• How are buffered transducer signals accessed on the module?

  Front-panel coaxial connectors provide short-circuit protected buffered transducer outputs for each active channel.

• What is the output impedance of the buffered transducer outputs?

  The output impedance of the buffered transducer outputs is 550 Ω.

• Can the 3500/40M monitor operate in hazardous environments?

  When used with appropriate I/O options, the module supports Class I, Division 2 and Zone 2 hazardous area approvals.

• What software version is required to operate the 3500/40M monitor?

  The module requires 3500/01 software version 2.50 or later, 3500/02 version 2.20 or later, and 3500/03 version 1.21 or later.