VSA-1227 and VSA-1247 Vibration Spectrum Analyzers

The VSA-1227 and VSA-1247 vibration spectrum analyzers are the first ruggedized PDA-based instruments for vibration analysis using Fast Fourier Transform (FFT) displays for integrated-circuit-piezoelectric (ICP) accelerometers. The VSA-1227 provides two analog input channels and the VSA-1247 provides four analog input channels. The units come with Datastick Spectrum software for vibration analysis and Datastick Connection Lite software for general-purpose data acquisition. They display FFT snapshots in 13 selectable ranges up to 0–5 KHz, at a single-sided-spectrum resolution of up to 1,024 points, with nine windowing options. In addition, the software provides tools for inspecting specific points in the display, as well as computing differences in amplitudes at recorded frequencies.