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.
