GE / Bently Nevada ADRE-208-P Data Acquisition Interface

The GE / Bently Nevada ADRE-208-P is a portable, multi-channel data acquisition interface unit engineered for machinery monitoring, diagnostics, and predictive maintenance in rotating equipment applications. This 16-channel DAIU captures simultaneous dynamic and static sensor data - including proximity probes, accelerometers, velocity transducers, and process transmitters - over a 0 to ±25 Vdc measurement range. The unit integrates oscilloscope, spectrum analyzer, filter, and recording functions into a single 800 g instrument, eliminating the need for multiple test devices in field environments. Operating from 0°C to +50°C, the ADRE-208-P delivers high-resolution signal analysis across rotating equipment speeds. Non-RMS integrated amplitude accuracy reaches ±0.77% of input signal and ±0.28% of full-scale range at +25°C (100–60k rpm), with temperature-compensated performance of ±0.49% full-scale across the operating envelope. RMS amplitude measurement accuracy at high speeds (600–60k rpm) is ±0.91% of input signal and ±0.31% full-scale at +25°C. Keyphasor® and nX synchronous measurements (100–225k rpm) achieve ±0.79% input signal and ±0.21% full-scale accuracy at +25°C. Waveform amplitude capture maintains ±0.57% input signal and ±1.42% full-scale accuracy at +25°C across the 100–60k rpm band. A low-pass filter with -3 dB point at 0.09 Hz minimizes aliasing and noise.

Technical Specifications

Channels: 16 simultaneous acquisition channels

Input Range: 0 to ±25 Vdc

Operating Temperature: 0°C to +50°C

Weight: 800 g

Filter Response: Low-pass, -3 dB at 0.09 Hz

Storage Capacity: 80 MB hard disk

Power Supply: AC or battery operation

Key Features

Multi-sensor input support: dynamic signals (proximity, acceleration, velocity), static process variables, and speed references

Temperature-compensated accuracy across full operating range

Real-time waveform visualization via connected computer display

Enhanced Parallel Port (EPP) communication interface

Typical Applications

Rotating machinery condition monitoring

Bearing and shaft analysis

Vibration diagnostics in turbomachinery

Field predictive maintenance surveys

Compatibility & Integration ADRE for Windows software enables real-time data analysis and storage, supporting condition-based maintenance strategies in critical industrial systems.