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SECTION I GENERAL INFORMATION
Utrecht
- 14 - Ref 002
3.4.3. Spectrum
The instrument computes harmonics on signals sampled with an A/D converter.
Harmonics
Recording interval 160ms (8 cycles)
Calculation range DC – 63rd
Display range DC – 25th
Displayed items for selected harmonic Order, relative and absolute value
Range Limits of error Resolution
Ir, Ur THD HD on LCD and PC
2 … 100 % 0.2 % x Ur/U (Ir/I) 0.2 % x Ur/U (Ir/I) 0.1 %
Note: THD Total Harmonic Distortion
HD Harmonic Distortion
U
r Urange
I
r Irange
Mains Signaling / Interharmonics
Recording interval 160ms (8 cycles)
Display range DC – 512th
Displayed items Order, relative and absolute value
Range Limits of error Resolution
Ur THD HD on LCD
2 … 100 % 0.2 % x Ur/U 0.2 % x Ur/U 5 Hz
3.4.4. Energy
Displayed: Quantities from integration of calculated power as:
- cumulative values (TOTAL);
- partly cumulative (reset able by user request) (SUBTOTAL);
- values related to last integration period (LAST IP).
Quantities are: active energy (EP), capacitive energy (EQC),
inductive energy (EQI).
Basic accuracy: ± 1 % of reading
Resolution: 0.1 of displayed value
3.4.5. Recorder measurements
See paragraph Section III 3.2 Recorder set-up for detailed possibilities and ranges of
selected recording type.
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