Fluke 1744 - Manual (Page 62)

Power Quality Logger
Technical Specifications
53
Power (Logging Functions A, P only) P, S, |P|
Active power P As per EN 61036, class 2
Distorting power D As per EN 61268, class 2 (A-version only)
Max value Highest value per interval
Min value Smallest value per interval
Phase uncertainty < 0.3 degrees
Conditions Conductor centered within clamp jaws or
Flexi Set
Harmonics
V
m
, I
m
, THDV, THDI per IEC/EN 61000-4-7, class B
Voltage harmonics (function A)
intrinsic uncertainty: For V
m
< 3% V
N
: < 0.15% V
N
For V
m
≥ 3% V
N
: < 5% V
m
Current harmonics (function A)
intrinsic uncertainty For I
m
< 10% I
N
: < 0.5% I
N
For I
m
≥ 10% I
N
: < 5% I
m
THDV (function A) intrinsic
uncertainty at V
N
For THDV < 3%: < 0.15%
For THDV ≥ 3%: < 5%
THDV (function P) intrinsic uncertainty
at V
N
For THDV < 3%: < 1%
For THDV ≥3%: < 5%
THDI (functions A, P) intrinsic
uncertainty at I
I
For THDI < 3%: < 2%
For THDI ≥ 3%: < 5%
Statistics
Frequency 42 classes for 10 s mean values
Ripple-control signals
Interharmonics 21 classes for 3 s mean values
Analysis of logging data
Programming and analysis is done by PQ Log software on PC.