990-04-70-01-01 Bently Nevada - Vibration Transmitter

Bently Nevada 990 Vibration Transmitter: Precision Monitoring Made Simple

🔍 Key Features at a Glance

Model: 990-04-70-01-01
Range: 0-4 mils pp (0-100 μm pp)
Accuracy: ±1.5% full scale
Certified: CSA Division 2 compliant

⚙️ Technical Specifications

Brand: Bently Nevada
Suffix Breakdown:
04=0-4 mils range | 70=7m cable | 01=DIN rail mount | 01=CSA认证
Output: 4-20 mA (2-wire)
Response: 5 Hz - 6 kHz (±3dB)
Power: 12-35 VDC
Weight: 0.43kg | Temp: -40°C to +85°C

🛠️ Smart Installation

• Mounts in 35mm DIN rail (included)
• Requires 9.5mm+ target surface
• Max 3m BNC cable to monitor
• 23mA current limit protects systems

🔧 Real-World Performance

• Detects 0.5-1.75mm gap changes in 100μs
• 1000Ω max loop resistance at 35V
• Auto-resumes monitoring in 2-3 seconds after fault

📦 What's Included

• 990-04-70-01-01 Transmitter
• DIN rail clips
• Mounting hardware
• COO certificate (on request)

✅ Proven Applications

• Steel mill conveyor bearing monitoring
• Hydro turbine shaft vibration analysis
• Paper plant roller alignment checks
• Gas compressor gearbox protection

🛡️ Quality Assurance

• 1-year defect warranty
• Factory calibrated to ISO standards
• Hazardous area certified for Zone 2/Div 2
• Made in USA with global support

⚠️ Critical Notes

• Requires 250Ω measurement resistor
• Not for <55 mils gap applications
• Keep 10ft max from probe to monitor
• Use only with 3300 NSv probes