YOKOGAWA CW140, User Manual, Page: 73 / 292

8-1
IM CW140-E
Instant Measure Mode
8
Chapter 8. Instant Measure Mode
8.1 Detailed View of Data Items on Instant
Measure Mode Screen
In Instant Measure mode, the CW140 measures and calculates the data
items listed below and displays the results.
●
Display of Measured/Calculated Values
Voltage (rms value) (V) Active power (W) Power factor
Current (rms value) (A) Reactive power 1 (Var) Phase angle ( ° )
Reactive power 2 (Var) Frequency (Hz)
Apparent power (VA) Unbalance factor (%)
(Three-phase system)
Measured data items: Rms-value voltage, rms-value current, active power,
reactive power 1 and frequency
Calculated data items: Reactive power 2, apparent power, power factor,
phase angle and three-phase unbalance factor
SEE ALSO
Section 8.6, "Computational Expressions," for details on the computational expressions.
●
Selection of Reactive Power Method
Reactive power 1: With reactive power meter method.
Reactive power 2: Without reactive power meter method.
SEE ALSO
Section 8.6, "Computational Expressions," for details on the computational expressions when either the
reactive power method is used or not used.
Selecting whether or not to use the method can be made in two ways:
• Press the key and set the data item "Reactive Power Method" on setting screen 3/3 to ON or
OFF; or
• Retrieve the System Setting screen to make a selection.
See the list of setup data items on each of these screens.