27
────────────────────────────────────────────────────
3.6 Measurement Losses
────────────────────────────────────────────────────
Source
Load
U
±
I
±
Source
Load
R
r
Input resistance
on the voltage side
Input resistance on
the current side
U
I
±
±
Source
Load
Source
Load
U
±
I
±
R
r
Input resistance on
the voltage side
Input resistance on
the current side
U
I
±
±
NOTE
3.6 Measurement Losses
This unit is designed to have low measurement losses, and an extremely
small effect on the power measurement values, but the following variant
connection methods may be used to further reduce the effect of measurement
losses.
(1) When the voltage input is connected to the power supply side, the
measurement includes losses from the input resistance of the current input
terminals, but this yields the minimum measurement losses when the
measured voltage is high and the measured current is low.
(2) When the current input is connected to the power supply side, the
measurement includes losses from the input resistance of the voltage input
terminals, but this yields the minimum measurement losses when the
measured voltage and measured current is low.
When using a clamp-on input unit as the current sensor, the measurement
losses of the current sensor can be ignored, so method (1) above should be
used.
Summary of Contents for Power HiTester 3193
Page 2: ......
Page 50: ...32 3 9 Operations During Power Failure ...
Page 76: ...58 4 13 Degaussing ...
Page 80: ...62 5 2 Setting the Frequency Range fa ...
Page 108: ...90 9 3 Internal Circuit for the External Control and Timing ...
Page 112: ...94 10 3 Output Rate ...
Page 250: ...232 13 9 Error and Overflow Displays ...
Page 278: ...260 17 5 Internal Block Diagram ...
Page 284: ...266 19 2 Installation Procedures For JIS standard For EIA standard External Dimensions ...
Page 300: ...282 20 4 Internal Block Diagram of the 3193 ...
Page 306: ...INDEX 4 Index ...
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