Yokogawa DR240 Manual do Utilizador Página 142

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8-4
IM DR232-01E
8.2 Alarm Display and Printing
CHART
KEYLOCK
RECORD
ALARM
Alarm display
When an alarm status is detected and an alarm is issued, the [ALARM] lights.
To display the alarm status for each channel, see Section 4.4, Using the ALARM SEARCH
Display on page 4-7 or Section 4.6, Using the ALARM STATUS Display on page 4-10.
To display the alarm output relay or internal switch status, see Section 4.7, Using the RELAY
STATUS Display on page 4-11.
If an alarm occurs while the alarm display hold (ALARM HOLD) is ON (because the alarm has
already been triggered), the [ALARM] and alarm status displays flash. Even after the alarm
status is released, the displays still flash.
When the alarm status hold function is ON, use the alarm acknowledge function to determine
the current status of the alarm. To do this, display the FUNC menu, select ALARM-ACK, then
press the [ENTER] key to use the alarm acknowledge function. For details, see Section 2.4,
Alarm Function on page 2-15.
Alarm printing
For details on setting the alarm printing, see Section 6.5, Setting the Alarm Printout on page 6-
10. The alarms are printed after making this setting.
Alarm reset
This function is selected from the FUNC menu when the relay hold function (see page 10-11) is
activated. To use the alarm reset function, select [ALARM RST], then press the ENTER key to
use the alarm reset function. For details on the alarm reset, see Section 2.4, Alarm Function on
page 2-15.
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