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Simplicity on the Worksite
Step 3 Additional Settings as Required
1
Determining the Alarm Hysteresis
What Is Alarm Hysteresis?
The alarm hysteresis is the difference between the temperature where the alarm output turns ON and the
temperature where it turns OFF.
The default setting is 0.2°C
• Setting Hysteresis for an Upper-limit
Alarm (Alarm Type 2)
Example: Hysteresis = 1
Alarm hysteresis:
If the temperature
decreases, the
alarm output will
turn OFF at 99°C.
• Setting Hysteresis for an Upper-limit Lower-limit Alarm (Alarm Type 1)
Example: Hysteresis = 1
Alarm hysteresis:
ON
Alarm ON
80°C or lower If the temperature
Note: The same hysteresis is used for the upper and lower limits of an upper-limit and
lower-limit alarm and an upper-limit and lower-limit range alarm
1°C
ON
Alarm ON
100°C or higher
1°C
increases, the
alarm output will
turn OFF at 81°C.
Solutions Guide for FAQs: E5@N
Setting Temperature Alarms
(Deviation between ON and OFF)
• Setting Hysteresis for a Lower-limit Alarm
(Alarm Type 3)
Example: Hysteresis = 1
Alarm hysteresis:
1°C
ON
Alarm ON
If the temperature
100°C or lower
increases, the
alarm output will
turn OFF at 101°C.
Alarm hysteresis:
1°C
ON
Alarm ON
120°C or higher
If the temperature
decreases, the
alarm output will
turn OFF at 119°C.
4-9
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