Bently Nevada 990-04-50-02-00 Transmitter

Engineering Purpose

The 990-04-50-02-00 is a 2-wire, loop-powered vibration transmitter that combines the functions of a proximity sensor and a signal conditioner. It is specifically designed to provide a 4-20 mA output proportional to radial vibration when used with a 3300 NSv probe. This model is ideal for machinery that requires precise vibration monitoring in non-hazardous or Zone 2/Div 2 environments, offering a direct link to control systems without a separate monitor rack.

Technical Data Summary

• Component Type: 2-Wire Vibration Transmitter

• System Compatibility: 3300 NSv Proximity Probe

• Part Number: 990-04-50-02-00

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

• System Length: 5.0 meters (16.4 ft)

• Mounting Type: Bulkhead screws (02)

• Agency Approval: Not required / Standard (00)

• Frequency Response: 5 Hz to 6,000 Hz (+0, -3 dB)

• Power Supply: Requires +12 to +35 Vdc (+28 Vdc recommended)

Decoding the Model Configuration

• 990: Bently Nevada 990 series vibration transmitter.

• 04: 0-4 mils peak-to-peak full-scale measurement range.

• 50: Calibrated for a 5.0-meter total system length (Probe + Extension Cable).

• 02: Equipped with Bulkhead mounting screws for direct installation on flat surfaces or machine housings.

• 00: Standard version for non-hazardous or Zone 2 / Div 2 locations.