Yokogawa IR200 - Manual (Page 49)

6 - 14
IM 11G02M01-01E
1. In the “Alarm Setting CH Selection”
screen that appears, point the cursor to
“Hysteresis” by pressing the
or
key. Press the
ENT
key.
2. In the “Hysteresis Value Setting” screen
that appears, enter hysteresis values.
For the value entry, 1-digit value is
increased or decreased by pressing the
or key, and pressing the key
moves the digit. After setting, press the
ENT
key to carry out hysteresis.
Hysteresis (In case of upper limit alarm)
If hysteresis values exceed the upper limit value as shown in graph, an alarm output is
provided. Once the alarm output is turned “ON”, it remains “ON” until the value falls
below the set lower limit of the hysteresis indication.
0 to 20% of full scale
A full scale means each range provides a full
scale of width.
Setting range
Upper limit value
ON (conductive)
OFF (open)
Hysteresis width
Alarm
( )
ENT
End of Hysteresis Setting
Caution
The hysteresis is common to all CHs
(components).
To close the "Hysteresis Setting" or cancel
the mode midway, press the key.
A previous screen will return .
To close Hysteresis Setting
ESC
ENT
6.3.2 Hysteresis setting
To prevent chattering of an alarm output near
the alarm setting values, set hysteresis.