YOKOGAWA WT200, Руководство пользователя

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5-4
IM 253421-01E
5.3 Displaying the Phase Angle
Keys
DC
SCALING AVG FILTER STORE RECALL HARMONICS
M W h
k A h
m V Hz
M W
k A
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 and
indicator
deg
Procedure
Selecting the Display Function
Select deg (phase angle) by pressing the FUNCTION key of display B.
Display
B
V A W PF deg
FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION
You can reverse the order by first pressing the SHIFT key followed by the FUNCTION key.
Explanation
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.
Note
• Changing the measurement mode might result in different computed results, even when the
input signal is the same. For details on the measurement mode, refer to section 4.1.
• When either the voltage or current drops below 0.5% of the measurement range, dEGEr 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 is between 1.0001 and 2.0000 or between –1.0001 and –2.0000:
phase angle display is 0.0.
• When the power factor is greater than 2.0000 or less than 2.0000: phase angle display is
dEGEr.