... -axis: RPM, second X, Z, order Waveform source Wave Source type Sine, square wave, triangle wave, impulse chain, burst chirp, DC ... AnalysisStandards Conforms to ANSI std.S1.11-1986 Order 3 Type 1-D and Standard IEC 225-1966 Frequency Range 1 ... Slow and Leq per ANSI S1.4-1983 Type 0 and IEC 651-1979 Type 0 Measurement time 1.3 msec to ... kHz acoustic an analysis in 1/6 octave Dynamic Signal Analyzer