YOKOGAWA WT500 User Manual page 132

5.2 Displaying Numeric Data and Changing Displayed Items
Measurement Functions Used in Normal Measurement
5-6
Displayed Measurement Function Symbols and Their Meanings
U (voltage Urms, Umn, Udc, Urmn, Uac)
P (active power)
Q (reactive power)
f
(phase difference)
U+pk/U-pk (maximum/minimum voltage)
CfU/CfI (voltage/current crest factor)
WP+ (positive watt hours consumed)
q (ampere hours; sum of positive and
negative ampere hours)
q- (negative ampere hours returned to the
power supply)
WQ (var hours)
η η
1 to 2 (efficiency)
Δ Δ
F1 to F4 (delta computation option)
Example The True Rms Voltage of Element 1
Element 1
True rms value
Voltage
Simple Average of the Currents of the Elements in Wiring Unit Σ
Σ function of wiring unit Σ
Simple average
Current
Note
"-------" or space is displayed if a measurement function is not selected or if there is no numeric
data.
Displaying Numeric Data
Press NUMERIC to display numeric data.
I (Current Irms, Imn, Idc, Irmn, Iac)
S (apparent power)
λ
(power factor)
fU/fI (or freqU/freqI; voltage/current frequency)
I+pk/I-pk (maximum/minimum current)
WP (watt hour; sum of positive and negative watt
hours)
WP- (negative watt hours returned to the power
supply)
q+ (positive ampere hours consumed)
WS (volt-ampere hours)
Time (integration time)
F1 to F8 (user-defined functions)
IM 760201-01E