Bently Nevada 990-05-XX-03-CN Specific Approval

Engineering Purpose

The 990-05-XX-03-CN is a loop-powered vibration transmitter that combines the functions of a proximity sensor and a signal conditioner into a single device. It is designed to provide 4-20 mA vibration monitoring for small-shaft machinery, optimized for the Chinese market with specific local agency approvals and high-accuracy requirements.

Technical Data Summary

• Component Type: 2-Wire Vibration Transmitter

• System Compatibility: 3300 NSv Proximity Probe

• Part Number: 990-05-XX-03-CN

• Full-Scale Range: 0-5 mils pp (0-125 µm pp)

• System Length: Configurable (XX = 50 for 5.0m or 70 for 7.0m)

• Mounting Type: DIN Clips and Screws (03)

• Agency Approval: China-specific Approval (CN)

• Accuracy: $\pm$1.5% over full-scale range

• Frequency Response: 5 Hz to 6,000 Hz ($\pm$0.3 dB)

• Power Supply: +12 to +35 Vdc

Decoding the Model Configuration

• 990: Bently Nevada 990 series vibration transmitter.

• 05: 0-5 mils peak-to-peak full-scale measurement range.

• XX: System Length Option. (Must match the total probe/cable length of 5.0m or 7.0m).

• 03: Includes DIN clips and mounting screws for versatile rail or surface installation.

• CN: China Agency Approval. Indicates compliance with specific national standards or certifications required for the China market.