Configured for converting proximity probe vibration signals into analog monitoring outputs in the Bently Nevada 990 system, the Bently Nevada 990-05-70-02-00 (990 Vibration Transmitter) provides direct physical/electrical execution.

Model Configuration Overview

The 990-05-70-02-00 transmitter is configured with a 0-5 mils pp full-scale vibration range, 7.0 meter system length, and bulkhead screw mounting option. The unit requires +12 to +35 VDC input at the transmitter terminal for operation.

Hardware Specifications

Bently Nevada Machinery Monitoring Characteristics

The 990-05-70-02-00 is designed for vibration monitoring applications where displacement measurement signals require conversion into transmitter outputs. The device processes vibration information from connected monitoring elements and provides a conditioned electrical signal for machinery protection and diagnostic systems.

Bently Nevada monitoring configurations commonly use calibrated probe systems where eddy-current probe scaling and gap voltage validation are required during installation. Proper probe calibration maintains measurement accuracy by confirming the electrical relationship between probe gap voltage and mechanical displacement.

The transmitter supports rotor dynamics monitoring applications by transferring vibration displacement data associated with rotating machinery behavior. Signal wiring practices should maintain shielding continuity to reduce electrical interference and preserve measurement stability.

Ordering Information

• 1 x Bently Nevada 990-05-70-02-00 Vibration Transmitter
• 1 x Configured 990 Series transmitter housing
• 1 x Bulkhead screw mounting configuration
• 1 x Technical documentation package when specified

Field Installation Guidelines

Mechanical Mounting

• Install the transmitter using the specified bulkhead screw mounting configuration.
• Verify mounting surfaces are mechanically stable before commissioning.
• Avoid installation locations exposed to excessive mechanical impact or uncontrolled vibration.

Electrical Connection

• Connect the power supply within the specified +12 to +35 VDC input range.
• Maintain correct signal polarity during field wiring.
• Keep vibration signal cables separated from high-voltage power conductors.
• Maintain cable shielding practices according to site grounding requirements.

Signal Verification

• Confirm connected vibration channels before system startup.
• Perform gap voltage validation when used with compatible eddy-current probe systems.
• Verify transmitter output response against the installed monitoring system.

Technical Questions and Answers

• What vibration range does the 990-05-70-02-00 support?

The transmitter is configured for a 0-5 mils pp vibration measurement range, equivalent to 0-125 um pp displacement.

• What power supply is required for this transmitter?

The unit requires a +12 to +35 VDC input connected at the transmitter terminal for normal operation.

• What mounting method is included in this model?

This configuration uses bulkhead screws as the mounting option for mechanical installation.

• What system length is specified for this model?

The 990-05-70-02-00 configuration includes a 7.0 meter (23.0 feet) system length option.

• Is the transmitter configured with agency approvals?

This specific model configuration lists the agency approval option as not required.

• Can this transmitter be used with rotor dynamics monitoring systems?

Yes. The transmitter is designed for vibration measurement signal processing used in rotating machinery monitoring applications.

• Does installation require shielded signal wiring?

Shielded wiring practices are recommended to minimize electrical noise and maintain vibration signal integrity.

• What verification is recommended after installation?

Field checks should include wiring inspection, power verification, and signal output confirmation before operation.