Instruction manual

8.0 DETAILED DATA SETTING SM425 INSTRUCTION MANUAL
8.3.3 Alarm Configuration Procedure
To display the Alarm setup display, follow these steps:
1. Press the Setup key in the basic panel display screen to display the Execution/Setup display.
2. Select Setup in the Execution/Setup display screen. The “Commissioning” (Setup) display
appears.
3. Select the Alarm setup in the “Commissioning” (Setup) display screen. The Alarms setup display
shown in Figure 8-5 appears.
To set the hysteresis, proceed per the following steps.
4. Select Hysteresis in the Alarm setup display screen. The numeric-data entry display screen
appears. Enter the desired hysteresis value as a percent of oxygen concentration. To set 2.5%
O
2
, enter “0025.” The hysteresis setting can be in the range 0 to 9.9% O
2
.
To set the delay time, proceed per the following steps.
5. Select the Contact delay in the Alarms setup display screen. The numeric-data entry display
screen appears. Enter the desired delay time, in seconds. To set three seconds, enter “003.” The
delay time setting can be in the range 0 to 255 seconds.
To set the alarm point, proceed per the following steps.
6. Select the Set points in the Alarms setup display screen. The Oxygen alarms display appears, as
shown in Figure 8-6.
7. When “High alarm” is selected in the Oxygen alarms display screen, the “OFF/ON” selection
display appears. Selecting “ON” enables the High alarm.
8. To set the High alarm value, select “Set value” just below the High alarm. The numeric-data entry
display screen appears. Enter the alarm set value (percent of oxygen concentration). Enter “010”
to set the alarm to 10% O
2.
9. Set the other alarms in the same manner.
No alarm is issued when alarm is set to “OFF” (disabled). To enable alarm functions, set the alarms to
“ON”.
Figure 8-5 Alarms Setup Display
42500001 REV A 125