19
Alarm Hysteresis
1. Alarm Hysteresis determines when the alarm is going to be out of the
alarm condition. Alarm hysteresis prevents actuation of nuisance, or re-
current, alarms. Hysteresis is either added or subtracted to the alarm
point, depending on whether a HI or LO ALARM has been set.
For example: If hysteresis is set at 1 degree and the HI alarm has been
set to trigger when the temperature reaches 100 degrees Fahrenheit, the
alarm will trigger at 100 degrees. As soon as the temperature drops be-
low 99 degrees the alarm condition will terminate.
2. Set the hysteresis by using the arrow keys.
ALARM HYSTERESIS
XXX.X °F
FIGURE 30. ALARM HYSTERESIS SCREEN
3. After selecting values, press the MENU key to continue.
Audible Alarms
Audible Alarm permits the sound of an alarm. It has two options: On or Off.
Use the arrow keys to select an option and press the MENU key to advance
to the Advanced Setup MENU. Refer to Figure 31.
AUDIBLE ALARM
ON
FIGURE 31. AUDIBLE ALARM SCREEN