
IM-P309-02
MI Issue 2
61
15.8.2 Current output alarm
This function allows the operator to define the state taken on by the current output when a
state of alarm is detected. This information can be analyzed in the control system. Press
to display the current setting:
Alarm
(>22mA)
As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can
choose between the following settings:
-
not used
-
no alarm function
-
> 22 mA current rise in the case of an alarm
-
< 3.8 mA current reduction in the case of an alarm
Measured value
Output current
0-20 (21.5) mA
4-20.5 mA and 4-21.6 mA
15.8.1 Current output 0/4 - 20 mA
The
Current output 0/4 to 20 mA
function allows the operator to define the range in which
the current output is to be operated. Within the range from 0 to 21.6 mA (= 0 ... 110%)
HART® communication is not possible. The range from 4 to 20.5 mA follows the NAMUR
recommendation and covers the range from 0 to 104% of the measuring range. The standard
range from 4 to 21.6 mA allows for a control of the measuring range of up to 110%.
Press
to display the current setting.
Current output I1
(4) – 21.6 mA
As mentioned in Section 14.1.3.1 Selection window / make a selection, the operator can
choose between the following settings:
-
0 – 21.6 mA
-
4 – 21.6 mA
-
4 – 20.5 mA
4-21.6 mA only
Fig. 35
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