Bently Nevada 121M6469 Ranger Pro Wireless Triaxial Vibration

Overview

The Bently Nevada 121M6469 is a Ranger Pro wireless triaxial vibration and temperature sensor. It continuously monitors rotating machinery and transmits data wirelessly. The sensor improves predictive maintenance by detecting imbalance, misalignment, looseness, and bearing wear early. Furthermore, it enhances machine reliability and reduces downtime.

Technical Specifications

• Sensor Type: Wireless triaxial vibration and temperature sensor
• Wireless Protocol: ISA100.11a (IEEE 802.15.4, 2.405–2.48 GHz)
• Wireless Range: 150 m line-of-sight; 100 m sensor-to-sensor
• Security: 128-bit AES encryption
• Power Supply: Replaceable D-size 3.6 V lithium battery
• Battery Life: Up to 5 years (depending on configuration)

Vibration (Accelerometer):

• Axes: 3-axis (X, Y, Z)
• Acceleration Range: ±20 g peak
• Frequency Range:
  • Z-axis: 5 Hz–10 kHz (±3 dB)
  • X/Y axes: 5 Hz–4 kHz (±3 dB)
• Accuracy: ±5% (Z-axis), ±10% (X/Y) at 160 Hz

Vibration (Velocity):

• Frequency Range: 5–2000 Hz
• Amplitude Range: 0–50 mm/s (peak or RMS)

Temperature:

• Range: −40 °C to +120 °C
• Accuracy: ±1 °C typical, ±3 °C maximum
• Resolution: 0.1 °C

Mechanical and Environmental:

• Housing Material: 316 stainless steel with PPS cover
• Ingress Protection: IP67
• Operating Temperature: −40 °C to +85 °C
• Mounting: M6 × 1 thread, 5 mm deep