IM 253401-01E
5-4
5.3 Measuring/Displaying Four Arithmetic
Operation Value, Crest Factor and Peak Value
Relevant Keys
SCALING
AVG FILTER
STORE
RECALL
HARMONICS
SAMPLE
V OVER
A OVER
MODE
RMS
V MEAN
DC
A
B
C
hour
hour
min
min sec
VVA
m
Ak
var
MW
TIME
VPF
m
Ak
deg
MW
%
FUNCTION
AUTO AUTO
MODE
1Φ3W
VHz
m
Ak
h
MW
TRIG
V RANGE A RANGE HOLD
ENTER
INTEGRATOR
START
HARMONICS MEMORY INTEG SET
STOP RESET
REMOTE
INTERFACE OUTPUT
LOCAL
SETUP
h
SHIFT
WIRING
3Φ4W
3Φ3W
3V3A
ELEMENT
123
FUNCTION ELEMENT
123
FUNCTION ELEMENT
123
*Shows the operation panel of the WT130. For the differences
between WT110 and WT130, refer to section 2.2, page 2-2, 2-3
Displays
relevant
keys and
indicator
Operating Procedure
1 Selecting the display Function
Select either (four arithmetical operations, crest factor), (voltage peak value) or (current
peak value) by pressing the FUNCTION key.
Display
C
AWV Hz A Hz Wh
AhAh±
Wh±
Wh±
Ah±
FUNCTION FUNCTION FUNCTION FUNCTION
FUNCTION
FUNCTION
FUNCTION
FUNCTIONFUNCTIONFUNCTIONFUNCTION
FUNCTION
FUNCTION
FUNCTION
&V
&A
*1
*1
*1
Wh± and Ah± will light twice. and are displayed on the top of display C.
You can reverse the order by first pressing the SHIFT key followed by the FUNCTION key.
*1DisplayedonWT110/WT130withROMversion2.01orlater.
2.Selecting the Input Element
To measure or display the peak value, press the ELEMENT key of display C and select the
input element.
The procedure is the same as shown on page 5-1.
Explanation
Measureing/displaying peak value
is displayed at the front of display C for both voltage and current.
• If the function is set to "V," the peak value of the voltage is measured and displayed.
• If the function is set to "I," the peak value of the current is measured and displayed.
Displaying the result of the four arithmetical operation abd the crest
factor
When display C is set to , the result of the computing equation specified in Section 4.7 or the
crest factor specified in Section 4.8 is displayed.
However, if the value of display B function is less than 0.0001% of the rating, “- - oF - -” is
displayed for the computation result.