Measuring/Displaying Voltage, Current And Active Power - YOKOGAWA WT110 User Manual

5.1 Measuring/Displaying Voltage, Current and
Active Power
Relevant Keys
Operating Procedure
Display
A
B
C
& A
Wh± and Ah± will light twice.
You can reverse the order by first pressing the SHIFT key followed by the FUNCTION key.
*1 Displayed on WT110/WT130 with ROM version 2.01 or later.
IM 253401-01E
A hour min
SAMPLE
V OVER
A OVER
MODE
B
RMS
V MEAN
DC
hour min sec
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 either V (voltage), A (current) or W (power) by pressing the FUNCTION key.
FUNCTION FUNCTION
V A W
FUNCTION FUNCTION
V A W
FUNCTION FUNCTION
V A W
FUNCTION
*1
FUNCTION FUNCTION
*1
& V
and
2 Selecting the Input Element
Select the input element by pressing the ELEMENT key.
WT110 No such function
(253401)
WT130
1
(253502)
ELEMENT
WT130
1
(253503)
3 Selecting the Measurement Range
You can select the voltage measurement range by pressing the V RANGE key, and the
current measurement range by pressing the A RANGE key. For more details, refer to either of
the following.
• 4.3 Selecting the Measurement Range in case of Direct Input, on page 4-4;
• 4.4 Setting the Scaling Value when External PT/CT is Used, on page 4-6;
• 4.5 Selecting the Measurement Range and Setting the Scaling Value when External Sensor
is Used (option), on page 4-8.
4 Selecting the Measurement Mode
Select the measurement mode by pressing the V RANGE (MODE) key after having pressed
the SHIFT key so that the SHIFT indicator is lit. For more details, refer to section 4.1 on page
4-1.
m
V VA 1 2 3
AUTO
var V RANGE A RANGE
k A
FUNCTION ELEMENT
MODE
M W
TIME
m
V PF 1 2 3
k A
deg
FUNCTION ELEMENT
M W %
START
HARMONICS MEMORY
REMOTE
m
V Hz 1 2 3
LOCAL
h
k A
FUNCTION ELEMENT
INTERFACE
M W h
1Φ3W
RECALL HARMONICS 3Φ4W
FUNCTION FUNCTION
VA var
FUNCTION FUNCTION
PF deg
FUNCTION FUNCTION
V Hz A Hz
FUNCTION FUNCTION
*1
Ah± Ah±
are displayed on the top of display C.
ELEMENT ELEMENT
3
ELEMENT ELEMENT
2 3
AUTO
Displays
HOLD
relevant
TRIG
keys and
ENTER
indicator
INTEGRATOR
STOP RESET
INTEG SET
SETUP
OUTPUT SHIFT
3Φ3W
WIRING
3V3A
FUNCTION FUNCTION
TIME
FUNCTION
FUNCTION FUNCTION
Wh
Wh±
FUNCTION
Wh±
FUNCTION
FUNCTION
Ah
ELEMENT
Σ
ELEMENT
Σ
5-1
5