Table of Contents

• 200350-00-00-01 Accelerometer Installation Overview
• Installation Strategy for 200350 Accelerometer
• Sensor Mounting and Mechanical Coupling
• Signal Wiring and Grounding Rules
• System Configuration and Signal Scaling
• Commissioning and Signal Validation
• Real Field Installation Case
• Installation FAQ
• Final Engineering Summary

200350-00-00-01 Accelerometer Installation Overview

Bently Nevada 200350-00-00-01 accelerometer installation errors are one of the most common causes of false vibration alarms, not sensor failure. Incorrect mounting or poor signal wiring can easily distort vibration readings by more than 30%.

This Installation Guide focuses on proper mounting, signal transmission, and system configuration to ensure accurate vibration monitoring in industrial rotating equipment.

Installation Strategy for 200350 Accelerometer

• Prioritize rigid mechanical coupling over convenience
• Avoid soft mounting surfaces (paint, rust, uneven metal)
• Minimize cable-induced vibration (cable whip effect)
• Ensure sensor orientation matches measurement direction

Sensor Mounting and Mechanical Coupling

• Use stud mounting instead of magnetic base whenever possible
• Mount directly on bearing housing for accurate vibration transmission
• Surface roughness should be less than 1.6 μm
• Torque mounting typically between 2.5 Nm – 5 Nm depending on thread size

  // Mounting Check Logic
  IF Mounting_Surface != Metal OR Surface_Not_Flat THEN
      Re-machine_Surface();
  ELSE
      Proceed_With_Stud_Mounting();
  END_IF;
  

Signal Wiring and Grounding Rules

• Use shielded twisted pair cable for accelerometer signal transmission
• Ground shielding at monitoring system side only
• Avoid routing cables parallel to power lines
• Maintain minimum 30 cm distance from high-voltage cables

System Configuration and Signal Scaling

• Configure sensitivity (e.g., 100 mV/g typical for accelerometer)
• Set proper units (mm/s or g depending on system)
• Define alarm thresholds based on machine baseline
• Integrate with PLC Controller or monitoring system (e.g., 3500)

Commissioning and Signal Validation

• Check static output voltage (~ -10V bias typical)
• Run machine at idle and compare baseline vibration (e.g., 1–3 mm/s)
• Verify frequency spectrum for abnormal peaks
• Confirm repeatability of readings across multiple runs

Real Field Installation Case

In one commissioning case on a centrifugal pump, abnormal vibration alarms were triggered immediately after installation:

• Measured vibration: 11.8 mm/s (expected: < 4 mm/s)
• Signal showed high-frequency noise

We observed the accelerometer was mounted on a painted surface with a magnetic base. After corrective action:

• Re-machined mounting surface and used stud mounting
• Re-routed cable away from inverter power line

Result:

• Vibration dropped from 11.8 mm/s → 3.2 mm/s
• Signal spectrum normalized

Installation FAQ

Can I use magnetic mounting for the 200350 accelerometer?

It is not recommended for permanent installation. Magnetic mounting introduces resonance and reduces measurement accuracy, especially above 1 kHz.

Why is my vibration value higher after installation?

This is usually caused by poor mounting stiffness or EMI interference. Check mounting surface quality and cable routing.

What is the correct orientation for installation?

The accelerometer must be aligned with the primary vibration direction (horizontal, vertical, or axial depending on application).

Final Engineering Summary

The Bently Nevada 200350-00-00-01 Installation Guide highlights that accurate vibration measurement depends more on mechanical installation quality than sensor specification. Proper mounting, shielding, and system configuration ensure reliable long-term monitoring.