YOKOGAWA WT210, User Manual, Page: 88 / 316

4-20
IM 760401-01E
4.8 Using the MAX Hold Function
Keys
CHECK RANGE MODE
UPDATE
SCALING AVG LINE FREQ STORE RECALL HARMONICS KEY LOCK
FILTER
A
B
C
VOLTAGE VOLTAGE
VOLTAGE
AUTO
MODE
CURRENT
AUTO
RANGE
MAX HOLD TRIG
CAL
INTEGRATOR
INTEG SET
SHIFT KEY LOCK
1P 3W 3P 3W
3P 4W 3V 3A
OUTPUT
HARMONICS MEMORY
REMOTE
MEAN
CURRENT RMS DC
FUNCTION ELEMENT
MAX HOLD
HOLD
ENTER
RESET
WIRING
START STOP
LOCAL SETUP
1
m
V
k
A
V
TIME
ar
deg
h
h
VA
M W
m
V PF
k A
M W
m
V Hz
k A
M W
2 3
FUNCTION ELEMENT
1 2 3
FUNCTION ELEMENT
1 2 3
%
The explanation given in this section uses WT230 as an example. For the differences between
the WT210 and the WT230, see section 2.2, “Operation Keys and Functions/Element Display.”
Procedure
MAX HOLD MAX HOLD
MAX HOLD
CURRENT
SHIFT MAX HOLD
CURRENT
SHIFT
OFF OFF
Explanation
MAX Hold Function
The maximum values (MAX) of V (voltage), A (current), W (active power), VA
(apparent power), var (reactive power), Vpk (voltage peak), and Apk (current peak)
can be held while the MAX hold function is enabled. When a value greater than the
held value is measured, the larger value is held. The initial setting is oFF.
• on: The MAX HOLD indicator illuminates, and the MAX hold function is enabled.
• oFF: The MAX HOLD indicator turns OFF, and the MAX hold function is disabled.
Note
While the MAX hold function is active, the maximum values of V (voltage), A (current), W
(active power), VA (apparent power), and var (reactive power) are displayed continuously.
The displayed values for Vpk (voltage peak) and Apk (current peak) are the absolute values
of the maximum value. For example, if the plus side peak is +100.1 Vpk and the minus side
peak is –100.2 Vpk, then –100.2 Vpk is displayed for the voltage peak. The values for D/A
output, output to external plotter and printer, and communication output are also set to the
maximum values (MAX) that are held.