Bently Nevada 990-04-70-02-00 vibration transmitter

Engineering Purpose

The 990-04-70-02-00 is a loop-powered vibration transmitter designed primarily for Original Equipment Manufacturers (OEMs). It converts signal from a 3300 NSv proximity probe into a 4-20 mA proportional output, providing a simple vibration monitoring solution for centrifugal air compressors, small pumps, and motors without requiring an external Proximitor.

Technical Data Summary

• Component Type: 2-Wire Vibration Transmitter

• System Compatibility: 3300 NSv Proximity Probe

• Part Number: 990-04-70-02-00

• Full-Scale Range: 0-4 mils pp (0-100 µm pp)

• System Length: 7.0 meters (23 ft)

• Mounting Type: Bulkhead Screws (02)

• Output Signal: 4-20 mA (Loop-powered)

• Agency Approval: None Required (00)

• Environmental Rating: Potted for 100% condensing humidity

Decoding the Model Configuration

• 990: Bently Nevada 990 series vibration transmitter.

• 04: 0-4 mils peak-to-peak full-scale range (approx. 100 µm).

• 70: Configured for a 7.0-meter total system length (Probe + Extension Cable).

• 02: Includes Bulkhead mounting screws for direct machine installation.

• 00: Standard version with no specific hazardous area agency approvals.