Product Description

Overview

The Bently Nevada 121M6470 is a wireless triaxial vibration and temperature sensor from the Ranger Pro series, designed for continuous condition monitoring of rotating machinery. It captures high-resolution acceleration, velocity, and surface temperature data without the need for extensive wiring, making it ideal for pumps, motors, fans, compressors, and gearboxes where cabling is impractical. Fully compatible with System 1 software, it enables advanced diagnostics and predictive maintenance.

Key Features

• Multi-axis Vibration Measurement: Simultaneous X, Y, and Z axis acceleration and velocity detection.

• Surface Temperature Monitoring: Integrated casing temperature sensor with ±1°C typical accuracy.

• Wireless Connectivity: Supports ISA100.11a and WirelessHART for seamless integration into industrial wireless networks.

• Rugged Construction: 316L stainless steel and PPS housing for harsh and hazardous environments.

• Long-Term Deployment: Battery life of up to 5 years depending on transmission intervals.

• Hazardous Area Rated: Intrinsically safe for Class I, Division 1 applications.

Performance Characteristics

Multi-Variable Monitoring: Provides acceleration, velocity, time waveforms, FFT spectra, and Peak Demod data, enabling detailed analysis of bearing faults, structural vibrations, and thermal anomalies.

Frequency & Amplitude Range:

• Z-axis: 5 Hz – 10 kHz

• X/Y axes: 5 Hz – 4 kHz

• Peak Acceleration: ±20 g

Battery and Power Management:

• High-capacity Lithium Thionyl Chloride battery

• Smart power management extends life up to 5 years depending on data acquisition interval

Environmental Ratings:

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

• Ingress Protection: IP67 (dust-tight and water-resistant)

• Shock & Chemical Resistance: Designed for 0.5-meter drop impacts; resistant to UV and industrial solvents

Technical Specifications

Applications

The 121M6470 is designed for remote and continuous monitoring of rotating machinery where wiring is challenging. It is suitable for critical balance-of-plant equipment, including motors, pumps, compressors, gearboxes, and fans. Its multi-variable measurement allows early detection of bearing faults, structural vibrations, and thermal anomalies.

FAQ

Q: How long will the battery last?
A: Depending on transmission intervals, the battery can operate up to 5 years.

Q: Can it operate in high-temperature environments?
A: Yes, the sensor maintains accuracy from -40°C to +85°C, and tethered mounting supports even higher localized temperatures.

Q: Is it safe for hazardous areas?
A: Yes, it is certified intrinsically safe for Class I, Division 1 zones.

Q: How should the sensor be installed?
A: Mount directly on a flat, clean metal surface. Proper antenna orientation ensures optimal wireless signal and battery life.

Q: Can it integrate with System 1 software?
A: Yes, it provides real-time vibration and temperature data compatible with Bently System 1 for advanced diagnostics.