Specifications are subject to change without notice
WM22-DINDS1003
5
Function description
Figure A
The sign of measured quantity
and output quantity remains
the same. The output quantity
is proportional to the mea-
sured quantity.
Input and output scaling capability
Working examples of the analogue output (Y) versus the input variable (x) - (input/output scaling possibilities).
Figure C
The sign of measured quantity
and output quantity remains
the
same.
On
the
range
X0...X1, the output quantity is
zero. The range X1...X2 is deli-
neated on the entire output
range Y0=Y1...Y2 and thus
presented in strongly expan-
ded form.
Figure B
The sign of measured quantity
and output quantity remains
the same. With the measured
quantity being zero, the output
quantity already has the value
Y1 = 0.2 Y2.
Live zero output.
0
50 A
100 A
0
10 mA
20 mA
80 V
100 V
120 V
0
5 mA
10 mA
0
50 A
100 A
4
12 mA
20 mA
Waveform of the signals that can be measured
Figure D
Sine wave, undistorted
Fundamental content
100%
Harmonic content
0%
Arms =
1.1107 | A |
Figure E
Sine wave, indented
Fundamental content
10...100%
Harmonic contents
0...90%
Frequency spectrum: 3rd to the 16th harmonic
Additional error: <1% rdg
Figure F
Sine wave, distorted
Fundamental content
70...90%
Harmonic content
10...30%
Frequency spectrum: 3rd to the 16th harmonic
Additional error: <0.5% rdg
Mode of Operation
WM22-DIN
Anaysis principle
FFT
Harmonic measurement
Current
Up to the 7th harmonic
Voltage
Up to the 7th harmonic
Type of harmonics
THD (VL1), THD (VL2),
THD (VL3), THD (AL1)
THD (AL2), THD (AL3)
Read-out
THD %
System
The harmonic distortion
can be measured in 3-wire
or 4-wire systems.
Harmonic distortion analysis
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