LEM Analyst 2050 - 2.1 Electrical Data: Voltage Measurement

5
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%