IM 253401-01E
4-15
4
Setting Measurement Conditions
4.8
Computing the Crest Factor (Applies to WT110/
WT130 with ROM Version 2.01 or later)
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
V
VA
m
A
k
var
M W
TIME
V
PF
m
A
k
deg
M W
%
FUNCTION
AUTO
AUTO
MODE
1
Φ
3W
V
Hz
m
A
k
h
M W
TRIG
V RANGE A RANGE
HOLD
ENTER
INTEGRATOR
START
HARMONICS
MEMORY
INTEG SET
STOP
RESET
REMOTE
INTERFACE
OUTPUT
LOCAL
SETUP
h
SHIFT
WIRING
3
Φ
4W
3
Φ
3W
3V3A
ELEMENT
1
2
3
FUNCTION
ELEMENT
1
2
3
FUNCTION
ELEMENT
1
2
3
*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
ENTER
3.
SETUP
1.
ENTER
4.
2.
5
.
• Perform operations following the thick line in the below menu.
• Press the ENTER key to confirm the selection or setting.
• When you want to leave the current menu during operation, press the key described
under step 1. The confirmed settings made until that point will be kept.
Selecting the four arithmetical
operations function
(Display C)
(Display C)
(for WT130 only)
End
Explanation
Crest factor computation
The crest factor is determined by peak value/rms value. The crest factors for voltage and
current are computed and displayed. “ ” is displayed at the front when the crest factor is being
displayed.
Computing equation for the crest factor and display
CF V1 : Displays the result of (Peak of V1)/(rms of V1)
CF V2 : Displays the result of (Peak of V2)/(rms of V2) (for 253503 only)
CF V3 : Displays the result of (Peak of V3)/(rms of V3) (for 253502 and 253503)
CF A1 : Displays the result of (Peak of A1)/(rms of A1)
CF A2 : Displays the result of (Peak of A2)/(rms of A2) (for 253503 only)
CF A3 : Displays the result of (Peak of A3)/(rms of A3) (for 253502 and 253503)
Note
• Definition of crest factor :
PEAK value
RMS value
• If the measurement mode is V MEAN or DC, “- - - - -” is displayed.
