YOKOGAWA CW140, User Manual, Page: 63 / 292

7-11
IM CW140-E
Common Functions of All Modes
7
7.3 Ranges and Number of Digits
0
Time
999.999 kWh
In the graph, this will be shown as follows.
Electr
ic energy
For lagging reactive energy and leading reactive energy, the unit of
measurement is Varh.
●
Switching Ranges in AUTO Range
When you select AUTO range, the ranges will be automatically switched
depending on the condition below.
Effective measurement range: 10% to 110% of each range
(Up to 600 V for the 600 V range)
WARNING
Do not apply a voltage of more than 600 Vrms to the voltage range.
Switching to upper range
For RMS value: When the RMS value becomes 110% or more of the
rated range.
For sampled value: When the sampled value becomes 300% or more of
the rated range.
Switching to lower range
For RMS value: When the RMS value becomes 30% or less of the
rated range.
For sampled value: When the sampled value becomes about 300% or
more of the rated range (lower range after
switching) as a result of switching range, switching
will not be performed.
TIP
• Switching is performed depending on the largest input among the voltage inputs V1, V2, and V3. The
selected range will be applied to all inputs.
• Switching is performed depending on the largest input among the current inputs CH1 to CH4. The
selected range will be applied to all inputs.