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6.2
Computing/Displaying the Phase Angle
Relevant Keys
Operating Procedure
Explanation
6-2
A
hour
SAMPLE
V OVER
A OVER
MODE
B
RMS
V MEAN
DC
hour
min
C
SCALING
AVG
FILTER
STORE
*Shows the operation panel of the WT130. For the differences
between WT110 and WT130, refer to section 2.2, page 2-2, 2-3
1 Selecting the Display Function
Select deg (phase angle) by pressing the FUNCTION key of display B.
Display
FUNCTION
V
B
You can reverse the order by first pressing the SHIFT key followed by the FUNCTION key.
2 Selecting the Input Element
Select the input element by pressing the ELEMENT key of display B. The operation is the
same as the one described on page 5-1.
Display Range and Units
Display range : G180.0 to d180.0 (G meaning phase lag, d meaning phase lead)
Unit
: deg
Selecting the Display Function
When you select deg, the phase angle will be displayed.
Selecting the Input Element
The type of input element which can be selected depends on the model number. Make your
selection after having verified your model number.
• 1/2/3 : Displays the measurement values of element 1/2/3
• ∑
: Refer to page 5-2.
Note
• Changing the measurement mode might result in different computed results, even when the input signal
is the same. For more details on the measurement mode, refer to page 4-1.
• When either the voltage or current drops below 0.5% of the measurement range, dEGErr will be
displayed.
• Distinction between phase lag and lead can be made properly, only when both voltage and current are
sine waves, and when the percentage of voltage or current input relating to the measurement range does
not fluctuate much.
• If the computed result of the power factor exceeds 1, the display will be as follows.
- when the power factor ranges between 1.001 to 2.000; the phase angle displays 0.0;
- when the power factor is 2.001 or more, the phase angle displays dEGErr.
min
m
V
VA
1
2
3
var
k
A
FUNCTION
ELEMENT
M W
TIME
m
V
PF
1
2
3
k
A
deg
FUNCTION
ELEMENT
M W
%
sec
m
V
Hz
1
2
3
k
A
h
FUNCTION
ELEMENT
h
M W
RECALL
HARMONICS
FUNCTION
FUNCTION
A
W
AUTO
AUTO
Displays
V RANGE A RANGE
HOLD
relevant
MODE
TRIG
keys and
ENTER
indicator
INTEGRATOR
START
STOP
RESET
HARMONICS MEMORY
INTEG SET
REMOTE
LOCAL
SETUP
INTERFACE
OUTPUT
SHIFT
1Φ3W
3Φ3W
WIRING
3Φ4W
3V3A
FUNCTION
FUNCTION
PF
deg
IM 253401-01E
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