Bently Nevada 121M6469 Ranger Pro Wireless Triaxial Vibration

Product Description

• The Bently Nevada 121M6469 is a Ranger Pro wireless triaxial vibration and temperature sensor.

• Designed for rotating machinery monitoring, it continuously measures vibration and temperature, transmitting data wirelessly for predictive maintenance.

• It helps detect early signs of imbalance, misalignment, looseness, or bearing wear.

• Built with rugged materials and certified for hazardous environments, it is widely used in turbines, compressors, pumps, and motors.

Technical Specifications

• Model Number: 121M6469

• 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 to access point; 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 interval and configuration)

• Measurement Axes: 3-axis accelerometer (X, Y, Z)

• Acceleration Measurement:

• Frequency range: Z-axis 5 Hz–10 kHz; X/Y axes 5 Hz–4 kHz

• Range: ±20 g peak

• Accuracy: ±5% (Z-axis), ±10% (X/Y) at 160 Hz

• Velocity Measurement:

• Frequency range: 5–2000 Hz

• Range: 0–50 mm/s (peak or rms)

• Temperature Sensor:

• Range: −40 °C to +120 °C

• Accuracy: ±1 °C typical, ±3 °C maximum

• Resolution: 0.1 °C

• Waveform & Spectrum: Configurable with multiple sample sizes and frequency bands

• Housing: 316 stainless steel with PPS cover

• Ingress Protection: IP67

• Operating Temperature: −40 °C to +85 °C

• Weight: 300 g (with battery)

• Mounting: M6 × 1 thread, 5 mm deep

• Hazardous Approvals: CSA Class I, Div. 1 (Groups A–D, T4); ATEX/IECEx Zone 0 (Ex ia IIC T4 Ga)