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OPM223/253
5.4.5
You can use the monitoring functions to define various alarms and configure output contacts.
Each individual error can defined to be effective or not (at the contact or as an error current).
Moreover, the electrode can be checked for glass breakage or leak current (P1, P2, P7). In the
event of an alarm, a cleaning function can also be activated (F8).
!
Note!
You can only check for glass breakage or leak current and avail of the cleaning function in the
Plus package.
Alarm
Coding
Field
ALARM function
F
group
F1
Select contact type
F2
Select time unit
F3
Enter alarm delay
F4
Select error current
F5
Select error
Set alarm contact to
F6
be effective for the
selected error
Monitoring functions
Setting range
(Factory settings, bold)
Latch = latching contact
Momen = momentary contact
s
min
0 s (min)
0 ... 2000 s (min)
22 mA
2.4 mA
1
1 ... 255
yes
no
Display
F
ALARM
Latch
F1
Cont.Type
s
F2
Time Unit
0
s
F3
Err.Delay
22mA
F4
Err.Curr
1
F5
Sel.error
yes
F6
Rel.Assg
Operation
Info
Alarm function settings.
The contact type selected only applies to
the alarm contact.
Depending on the option selected in F2,
the alarm delay is entered in s or min.
This selection must be made even if all
error reporting is switched off in F5.
"
Caution!
If "0-20 mA" was selected in O311, "2.4
mA" may not be used.
Here you can select all the errors which
should trigger an alarm.
The errors are selected via the error
numbers. Please refer to the table in
section "System error messages" for the
meaning of the individual error numbers.
The factory settings remain in effect for
all errors not edited.
If "no" is selected, all the other alarm
settings are deactivated (e.g. alarm
delay). The settings themselves are
retained.
This setting only applies to the error
selected in F5.
39
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