KROHNE OPTIWAVE-M 7400 C Short Manual page 50

OPERATION
4
Menu Function
No.
C4.1.5 Error Function
C4.1.7 Low Error
Current
C4.1.8 High Error
Current
C4.1.9 Trimming
C4.1.9.2 4mA Trimming
C4.1.9.5 20mA Trimming
C5 Communication
C5.1 HART
C5.1.1 Current Loop
Mode
50
Function description
This sets the behaviour of current output 1 if an
error occurs. If this menu item is set to "Off",
no signal is given (this parameter is not
available if menu item C4.1.4 is set to "3.8-20.5
mA" (NAMUR) or "3.8-20.5 mA
(reversed)"). If this menu item is set to "Hold",
the output current stays at the value where the
error occurred (this parameter is not available
if menu item C4.1.4 is set to "3.8-20.5 mA"
(NAMUR) or "3.8-20.5 mA
(reversed)"). If this menu item is set to "Low",
the output current changes to 3.5 mA (default
value) if an error occurs. If this menu item is set
to "High", the output current changes to 21.5
mA (default value) if an error occurs. You can
change the low error current value in menu item
C4.1.7. You can change the high error current
value in menu item C4.1.8.
Minimum access level to change the
setting: Expert
This menu item is available if C4.1.5 Error
Function is set to "Low". You can change the
value to which the current output will change if
an error occurs.
Minimum access level to change the
setting: Expert
This menu item is available if C4.1.5 Error
Function is set to "High". You can change the
value to which the current output will change if
an error occurs.
Minimum access level to change the
setting: Expert
Use this menu item if the current output of the
device is set to 4 mA, but the measured loop
current is not 4 mA. Enter the measured value.
Minimum access level to change the
setting: Expert
Use this menu item if the current output of the
device is set to 20 mA, but the measured loop
current is not 20 mA. Enter the measured value.
Minimum access level to change the
setting: Expert
Set this menu item to "On" if the "Primary
Variable" for current output 1 must also be
transmitted as a 4...20 mA signal. If this menu
item is set to "Off', this stops the 4...20 mA
signal and starts HART® multi- drop mode.
Minimum access level to change the
setting: Expert
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OPTIWAVE-M 7400 C
Selection list
Off, Low, High, Hold
min-max: 3.5.
3.6 mA
min-max: 21.0
.......... 21.5 mA
min-max: 0.0.
25.0 mA
min-max: 0.0.
25.0 mA
On, Off
02/2019 - MA OPTIWAVE-M 7400 C R01 en
Marine Default
Low
1
3.5 mA
21.5 mA
4 mA
20 mA
Off