LEM Analyst 2050, Руководство пользователя, Страница: 5 / 140

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DF (Distortion Factor)
1%
≤
DF < 100% ........... ± 3% rdg ± 5 dgts
Resolution ...................... 0.1%
H02
≤
I
harm
<
H13............ ± 5% rdg ± 2 dgts
H13
≤
I
harm
≤
H25........... ± 10% rdg ± 2 dgts
All measurements up to 25
th
harmonic
Frequency range F
0
45Hz to 65Hz
I
acrms
>
10A, I
harm
>
10% I
acrms
2.1.2 Voltage measurement
(DC, DCRMS, ACRMS)
Measuring range................... 0 - 750V DC or AC
Autorange facility .................. 4V / 40V / 400V / 750V
Resolution............................. 1mV in 4V range
10mV in 40V range
100mV in 400V range
1V in 750V range
Accuracy
RMS and DC
V > 1V .......................... ± 1% rdg ± 5 dgts
V < 1V .......................... ± 0.02V
AV
V > 1V .......................... ± 3% rdg ± 5 dgts
V < 1V .......................... ± 0.03V
Pk
V > 1V .......................... ± 5% rdg ± 5 dgts
V < 1V .......................... ± 0.03V
CF (Crest Factor)
1
≤
CF < 3 ...................... ± 3% rdg ± 5 dgts
3
≤
CF < 5 ...................... ± 5% rdg ± 5 dgts
Resolution ...................... 0.01
RPL (Ripple)
2%
≤
RPL< 100% .......... ± 3% rdg ± 5 dgts
100%
≤
RPL< 600% ...... ± 5% rdg ± 5 dgts
Resolution ...................... 0.1%
V
DC
>
0.5V, V
AC
>
0.2V
All measurements DC and 10Hz to 1kHz.
Maximum overload 1,000 V RMS
Volts RMS is a true RMS measurement (AC + DC)
Harmonics
THD (Total Harmonic Distortion)
1%
≤
THD < 100%......... ± 3% rdg ± 5 dgts
100%
≤
THD < 600%..... ± 5% rdg ± 5 dgts
Resolution ...................... 0.1%