Power Logger
Technical
Specifications
55
Frequency Measurement
Measuring range:
46 Hz – 54 Hz and 56 Hz – 64 Hz
Intrinsic error:
±
(0.2 % of m. v. + 5 digit)
Operating error:
±
(0.5 % of m. v.+ 10 digit)
Resolution: 0.01
Hz
Harmonics
Measuring range:
1 to 40
th
harmonic
Accuracy:
V
m
, I
m
, THDV, THDI:
according IEC 1000-4-7, class B
V
m
, I
m
, THDV, THDI:
according IEC 1000-4-7, class B
V
m
≥
3 % V
n
5 % V
V
m
< 3 % V
n
0.15
%
V
n
I
m
≥
10 % I
n
5 % I
m
I
m
< 10 % I
n
0.5 % I
n
THDV
for THD <3 %: < 0.15 % at V
n
for
THD
≥
3 %: < 5 %
at V
n
THDI
for THD <10 %: < 0.5 % at I
n
for
THD
≥
10 %: < 5 %
at I
n
Events
Detection of voltage dips, voltage swells and voltage interruptions with a
10-ms resolution. Measuring error of the half-period sine wave of RMS:
Intrinsic error:
±
(1 % of m. v. + 10 digit)
Operating error:
±
(2 % of m. v.+ 10 digit)
Resolution: 0.1
V
Unbalance
RMS errors see V-RMS specification
Phase angle errors:
Summary of Contents for 1735
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