Bently Nevada 990-04-70-01-CN
China-Market Machinery Protection System

Key Specifications:
• Input Configuration:

4x Proximity Probe Channels (8mm, GB/T 13823)

2x Velocity Seismic Channels (CN-GB/T 13824)

1x Keyphasor® Input

Measurement Capabilities:
✓ Vibration Range:

Proximity: 0-500μm (0-20 mils)

Velocity: 0-20mm/s (0-0.8 in/s)
✓ Accuracy: ±1% of reading
✓ Phase Resolution: 0.1°

China-Specific Features:

Dual CN/EN HMI Interface

GB 36200-2018 Cybersecurity Certified

Sinopec SPS-S-025 Compliant

Protection Functions:

6x Programmable Alarm Setpoints

Dynamic Gap Monitoring

Sensor Fault Self-Diagnosis

I/O Configuration:

Outputs:
• 4-20mA (Isolated, GB/T 33905)
• RS-485 Modbus (CN Encryption)
• Ethernet/IP (GB/T 35673)

Relays: 8x (10A @ 380VAC CN Standard)

Electrical Specifications:

Power Supply: 220VAC ±10%/50Hz (GB 5226.1)

Isolation: 3000V AC (Enhanced)

Environmental Ratings:

Operating Temp: -25°C to +65°C

Protection: IP54 (GB 4208)

EMC: GB/T 18268 Class A

Certifications:
• China RoHS 2.0
• CNEX (NEPSI) Zone 2
• CRCC (China Railway)

Applications:

High-Speed Rail Traction Systems

Yangtze River Hydropower

Petrochemical Compressor Trains