YOKOGAWA WT200, User Manual

Page: 39 / 242

4-3
IM 253421-01E
Setting Measurement Conditions and Measurement Range
4
4.2 Selecting the Measurement Synchronization
Source
Keys
DC
SCALING AVG FILTER STORE RECALL HARMONICS
M W h
k A h
m V Hz
M W
k A
deg
var
TIME
FUNCTION AUTO
MODE TRIG MAX HOLD
HOLD
CAL
INTEGRATOR
HARMONICS
INTERFACE OUTPUT SHIFT
REMOTE
MEMORY INTEG SET
ENTER
A RANGE V RANGE
START
LOCAL SETUP
STOP RESET
AUTO
FUNCTION
FUNCTION
m V PF
M W
k A
m V VA
V MEAN
RMS
A OVER
V OVER
SAMPLE
A
B
C
MODE
Displays
relevant keys
Procedure
• Operate the instrument by following the thick lines in the menu below.
• Press the ENTER key to confirm a selection or setting.
• To leave the current menu in the middle of the operation, press the key indicated in step 1.
The confirmed settings up to that point are kept.
ENTER
3.
SETUP
ENTER
4.
2.
5
.
1.
Select the measurement synchronization source.
(Display C)
(Display C)
End
Explanation
Function used to select the measurement synchronization source
The instrument determines the measured value by averaging the sampled data
(averaging process) over the period synchronized to the input signal period. The input
signal period is detected from the voltage and current signals and you can select which
signal period to use to perform the averaging process. The initial setting is A.
• A
Priority is placed in detecting the current period to be used as the synchronization
source. When the current input is less than 30% of the measurement range, the
voltage is used as the synchronization source.
• V
Priority is placed in detecting the voltage period to be used as the synchronization
source. When the voltage input is less than 30% of the measurement range, the
current is used as the synchronization source.
Note
• Select an input signal with stable input level and frequency (with little distortion) for the
synchronization source.
• If both the voltage and current inputs are less than 30% of the range, a fixed period of 240 ms
is used to sample and average the data.