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5. Operation
5.2 Usage According to Purpose (Alarm, Operating Time, Password, etc.)
⚫ Canceling the upper/lower limit alarm
The alarm cancellation method differs depending on the setting for alarm reset.
cancelled also via communication.
Alarm cancel method
Automatic(Auto)
Manual(HoLd)
Note: The difference of 0.8% between the maximum scale and alarm value is used for determining whether the measurement value is
below the upper/lower limit alarm value in order to prevent chattering.
⚫ Stopping backlight flickering caused by upper/lower limit alarm generation
Press
the button to stop the backlight flickering.
RESET
⚫ Display of operation time
The measurement time is integrated according to the value set to the target for counting operation time (AUX, A, and V)
and displayed as the load operation time.
To display the operation time, the operation time display setting should be configured in advance.
The operation time is counting, even if operation time display setting is OFF.
(For setting of the operation time display, refer to page 28.)
When the following set target for counting the operation time
exceeds the threshold, the operation time 1 and operation time
2 are integrated.
Item
3-phase 4-wire 1-phase 2-wire
AUX
(Auxiliary power)
A
(Current)
V
(Voltage)
＜Using the operation time 1 and operation time 2 as appropriate＞
For example, if you want to check both of the operation time on a monthly basis (the value which is periodically reset)
and the cumulative operation time from when the system started to operate (the value which is not periodically reset),
use the operation time 1 and operation time 2 accordingly. If it is unnecessary to use the operation time 1 and operation
time 2 at the same time, monitor either of them.
This is displayed when the
⚫ Resetting the operation time to zero
Showing the operation time 1 or the operation time 2 on the display and then holding down the
seconds resets the operation time to zero.
(Only the displayed operation time is reset to zero.)
When the password protection setting is enabled, the operation time is reset to zero after the password is entered.
All the operation times can be reset to zero also via communication. (In this case, the password is not necessary)
When the measurement value is below the upper/lower limit set value, the alarm is
automatically reset.
The alarm is maintained even after the measurement value is below the upper/lower limit set
value. After the measurement value is below the upper/lower limit alarm value, operate the
following alarm cancellation operation.
(Note: However, alarms cannot be cancelled from the maximum/minimum value display
screen.)
<Cancelling alarms for selected elements>
Display the element where the alarm generated, and then press
When an element has a phase such as current and voltage, it is necessary to press
for each phase when cancelling an alarm.
<Cancelling alarms for all elements>
At the current value display screen, press
AUX
AUX
A
A
AVG
（L-N）
V
V
AVG
button is pressed repeatedly in the operation mode to switch the measurement displays.
The upper and lower limit alarms can be
Cancelation method
for 2 seconds to cancel all alarms.
RESET
Others
AUX
Operation time 1
A
AVG
（L-L）
V
AVG
45
to cancel the alarm.
RESET
Operation time
2
button for 2
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