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<8. Detailed Data Setting>
8-8
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
8.3.3 Alarm Setting Procedure
To set the alarm setpoints, follow these steps:
(1) Press the [Setup] key in the Basic panel display to display the Execution/Setup display.
(2) Select “Commissioning” in the Execution/Setup display. The Commissioning (Setup) display
then appears.
(3) Select the “Alarms setup” in the Commissioning (Setup) display. The Alarms setup display
shown in Figure 8.4 then appears.
• To set the hysteresis, proceed to the following steps.
(4) Select “Hysteresis” in the Alarms setup display. The numeric-data entry display then
appears. Enter the desired hysteresis value as a percent of oxygen concentration. To set 2.5
vol%O
2
, enter “0025.” The hysteresis setting can be in the range of 0 to 9.9 vol%O
2
.
• To set the delay time, proceed as per the following steps.
(5) Select the “Contact delay” in the Alarms setup display. The numeric-data entry display then
appears. Enter the desired delay time, in seconds. To set three seconds, enter “003.” The
delay time setting can be in the range of 0 to 255 seconds.
• To set the alarm point, proceed to the following steps.
(6) Select the “Setpoints” in the Alarms setup display. The Oxygen alarms display then appears,
as shown in Figure 8.5.
(7) When you select “High alarm” in the Oxygen alarms display, the “OFF” or “ON” selection
display then appears. If you select “ON,” the High alarm will then be enabled (enable/
disable).
(8) To set the High alarm values select “Set value” just below the High alarm. The numeric-data
entry display then appears. Enter the alarm set value (percent of oxygen concentration). If
you want to set the alarm value to 10 vol%O
2
, enter “010.”
(9) Set the other alarm settings in the same manner as in the steps above.
NOTE
No alarm is issued when alarm is set to “OFF” (disabled). To use the alarm functions, be sure to
set the alarms “ON”.
Parameter: Oxygen

Hysteresis: 0.1%O
2

Contact delay: 3 s

Setpoints
Enter
Alarms setup
F8.4E.ai
High High alarm: OFF

Set value: 1 0 0 . 0 % O
2

High alarm: ON

Set value: 1 0 0 . 0 % O
2

Low alarm: OFF

Set value: 0 . 0 % O
2

Low Low alarm: OFF

Set value: 0 . 0 % O
2
Enter
Oxygen alarms
F8.5E.ai
Figure 8.4 Alarms Setup Display Figure 8.5 Oxygen Alarms Display