Iso-Tech IDM 97 - Page 11

11
A.C. voltage (Va.c.)
Range Resolution Accuracy (97) Accuracy(97RMS)
Over voltage
3V 1mV ±(1.3% + 5D)*
±(1.3% + 3D)**
600V a.c. or
600 V rms
30V 10mV
300V 100mV
600V 1V
±(1.3% + 5D)
40 to 500Hz
* Frequency range for 3V range :
40 to 300Hz.
** Frequency response :
40Hz to 1kHz; for the 3V ran
g
e: 40 to 300Hz.
Input impedance :
10M
è
in parallel with 100pF.
IDM 97 a.c. voltage conversion :
Mean measured - r.m.s. value displa
y
ed
IDM97RMS :
A.c. volta
g
e coupled measurement, true r.m.s. readin
g
s, calibration to the r.m.s. value of a sinusoidal
input volta
g
e, basic accurac
y
is for full scale deflection for sinusoidal volta
g
es and half scale deflection for non-
sinusoidal volta
g
es (for sinusoidal volta
g
es onl
y
in the case of the 3V ran
g
e). In the case of non-sinusoidal volta
g
es,
the followin
g
amounts should be added to the fi
g
ures for accurac
y
: