Iso-Tech IDM 97, Instruction Manual

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* A.c. current conversion:
IDM97: Mean measured - r.m.s. value displayed
IDM97RMS: A.c. voltage coupled measurement, true r.m.s. readings, calibration to the r.m.s. value of a sinusoidal
input voltage, basis accuracy is for full scale deflection for sinusoidal voltages and half scale deflection for non-
sinusoidal voltages. In the case of non-sinusoidal voltages, the following amounts should be added to the figures for
accuracy:
C r e s t f a c t o r :
1 . 4 t o 2 : + 0 . 5 %
2 t o 2 . 5 : + 2 %
2.5 to 3: +4%