The Bently Nevada 170133-090-00, also cataloged as the 1701 Field Monitor proximity sensor module, operates as a dedicated hardware interface for eddy-current probe signal conditioning within the Bently Nevada 1701 monitoring chain. It processes proximity transducer inputs derived from 3300 series 5 mm and 8 mm probe systems using defined scaling characteristics and system-length cabling architecture.

Hardware Specifications

Eddy-Current Signal Scaling and Rotor Dynamics Interface

The 1701 Field Monitor implements eddy-current probe scaling for displacement-to-voltage conversion using calibrated sensitivity of 200 mV/mil. The input conditioning stage maintains linear translation of probe gap variation into analog voltage representation.

Rotor dynamics measurement integrity depends on stable excitation and return signal integrity across the full 9 m system length. The architecture supports cross-talk suppression by maintaining controlled impedance matching between probe, extension cable, and monitor input stage.

Gap voltage validation is referenced against nominal proximity response curves derived from Bently Nevada 3300 series probe characteristics, ensuring consistent displacement interpretation under varying mechanical alignment conditions.

Frequently Asked Questions

Q: Does the 170133-090-00 support direct hot-swap of probe inputs?
A: The module does not define hot-swap behavior at the probe interface; signal integrity requires stable connection during active monitoring.

Q: What is the impact of system length on signal accuracy?
A: The 9 m system length introduces attenuation characteristics that are compensated by the defined scale factor of 200 mV/mil.

Q: Can multiple probe types be mixed on one module channel?
A: The input stage is designed for 3300 series 5 mm and 8 mm probes; mixed probe configurations require consistent scaling compatibility.

Q: How is electrical isolation handled between channels?
A: Isolation is implemented through internal conditioning circuitry; channel separation is maintained at signal processing level, not field wiring level.

Field Installation Guidelines

Probe and extension cable routing shall maintain continuous shielding integrity from sensor tip to monitor input terminal. Cable bends must respect minimum radius specifications typical for coaxial sensor cabling to avoid impedance variation.

Shield termination should be grounded at a single point within the system cabinet to prevent ground loop formation. The probe face must be aligned perpendicular to the target surface to maintain linear displacement response.

Mechanical mounting of the field monitor shall ensure DIN rail stability and minimize vibration coupling into terminal blocks. Wiring separation between signal and power conductors is required to reduce electromagnetic coupling effects.

Ordering info

• 170133-090-00 Field Monitor module unit
• Compatible 3300 series probe interface support
• System calibration reference documentation (if supplied by vendor batch)
• Standard DIN rail mounting clip set (if applicable)

Delivery Information

Delivery time: 3-5 days when payment finish, via DHL / FEDEX / UPS. Anti-static industrial packaging with reinforced shock protection and sealed moisture barrier is applied for transit stability.