The Bently Nevada 990-10-XX-01-05 MOD:165353-07, also cataloged as the 990 Vibration Transmitter, operates as a dedicated hardware component for vibration signal conditioning and displacement monitoring within Bently Nevada machinery monitoring systems.

Configuration Details

The 990-10-XX-01-05 MOD:165353-07 is a 990 Series vibration transmitter configured with a 0-10 mils peak-to-peak measurement range, selectable 5.0 meter and 7.0 meter system length options, 35 mm DIN rail mounting, and hazardous area approval configuration.

Model Configuration Matrix

Hardware Specifications

Eddy-Current Signal Processing Characteristics

The 990 Series transmitter receives vibration signals from compatible eddy-current proximity probe systems and converts displacement measurements into conditioned electrical outputs. The configured scaling range determines the relationship between probe input displacement and transmitter output response.

Eddy-current probe scaling verification is required during installation to ensure correct vibration amplitude conversion. Gap voltage validation, including the typical -10 VDC probe gap target, should be checked according to the connected proximity monitoring system requirements.

Rotor Dynamics Monitoring Interface

The 990-10-XX-01-05 MOD:165353-07 provides signal conditioning for rotating machinery vibration measurement circuits. The 5 Hz to 6,000 Hz frequency response range supports vibration signal transmission across a broad machinery operating spectrum.

Proper cable routing is required to reduce electrical interference and cross-talk. Signal grounding and shield termination practices should follow the installation requirements of the associated Bently Nevada monitoring equipment.

Ordering Information

• 1 x Bently Nevada 990-10-XX-01-05 MOD:165353-07 Vibration Transmitter
• 1 x 990 Series transmitter electronics assembly
• 1 x 35 mm DIN rail mounting clip assembly
• 1 x Configured hazardous area approval option set

Field Installation Guidelines

Mechanical Mounting

• Install the transmitter on a compatible 35 mm DIN rail.
• Confirm the installation location matches the specified hazardous area classification.
• Provide sufficient access for terminal wiring and inspection.

Electrical Installation

• Connect a +12 to +35 VDC supply at the transmitter terminal.
• Ensure total loop resistance remains within the specified 1,000 ohm limit including cable resistance.
• Separate vibration signal wiring from high-current power cables.

Signal Verification

• Confirm probe scaling before commissioning.
• Verify vibration output response against expected displacement input.
• Check shielding and grounding connections to minimize signal interference.

Frequently Asked Questions

• What vibration range does the 990-10-XX-01-05 support?

  This configuration supports a 0-10 mils peak-to-peak measurement range, equivalent to 0-250 um peak-to-peak displacement.

• What is the operating temperature range?

  The transmitter operates from -35 deg C to +85 deg C and can be stored from -52 deg C to +100 deg C.

• What power supply voltage is required?

  The unit requires a +12 to +35 VDC input supply connected directly at the transmitter terminal.

• What is the frequency response range?

  The transmitter provides a frequency response from 5 Hz to 6,000 Hz with +0 and -3 dB limits.

• What mounting method is included?

  The configured model includes 35 mm DIN rail clips for panel mounting installation.

• What hazardous approvals are included?

  This configuration includes CSA Division 2, ATEX Zone 0, ATEX Zone 2 and ABS maritime approval options.

• What is the maximum loop resistance?

  The maximum loop resistance is 1,000 ohms including cable resistance when operating at 35 VDC.

• Does the transmitter require probe calibration?

  Probe scaling and gap voltage verification should be completed to match the connected eddy-current measurement system.