Audio Precision AP 52 B Series User Manual

Characteristic Specifications Supplemental Information
APx525/526 B Series Audio Analyzers: Analog I/O Specifications 25
525
Phase Measurement
Ranges –90 to +270, ±180, or 0 to 360 deg
Accuracy ±0.2 deg, 5 Hz to 5 kHz;
±0.8 deg, 5 kHz to 20 kHz;
±2.0 deg, 20 kHz to 50 kHz
V
in
must be  5 mV with DC coupling,
both channels. Accuracy degrades
below 50 Hz with AC coupling.
Resolution 0.001 deg
DC Voltage Measurement
Valid only for input bandwidths 90k
Input Ranges 0.32V to 300V, 10 dB steps ±160 Vdc maximum in 300V range
Accuracy
0.32 V range ±(0.7% reading + 800 µV)
1 V–300 V ranges ±(0.7% reading + 0.1% range)
Normal Mode Rejection Typically > 90 dB, 20 Hz to 20 kHz.
NOTES to SPECIFICATIONS:
1 System specification including contributions from both generator and analyzer. Generator-only and/or analyzer-only
contributions are typically less.
2 Generator load must be 600 balanced or 300 unbalanced for specified performance. Generator dc offset
must be off or set to 10 mV.
3 Input must be 150 mV for specified performance. Analyzer must be set to measure “d2+d3” for MOD and DFD,
and “U1…U9” for DIM per IEC-60268.
4 Valid for the balanced input configuration with DC coupling only. With AC coupling, specified performance is invalid
below 50 Hz.
5 Maximum low-pass filter frequency is limited by analyzer input bandwidth setting.
6 Filter response is relative to “no filter” selection; overall system performance will also include analog flatness imper-
fections. DSP warping may significantly increase roll-off rate and lower ENBW.

Audio Precision AP 52 B Series Specifications

General

Brand	Audio Precision
Model	AP 52 B Series
Category	Measuring Instruments
Language	English