MN301905 Rev A
57
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Advanced Adjustments (continued)
Step Eight
FAIL-SAFE OUTPUT
This function is used to set the current output to a designated state if the sensor loses measurement
confidence. Selecting No Change will hold the current at its last valid current output. Selecting 20.5mA will
force the current to jump to 20.5mA. Selecting 22.5 mA will force the current to jump to 22.5 mA.
Note: The
latter two high current output states are above the standard 4-20 mA operational range, and can be used to
indicate that a failure has occurred.
1) From the Main Screen, press
Enter
to advance into
the Main Menu
2)
Press
Right Arrow
repeatedly until the arrow is next
to Service.
3)
Press
Enter
to advance into Service Menu and Echo
Curve will appear.
4)
Press
Right Arrow
to move from Echo Curve to
Output Current.
5)
Press
Enter
to advance into Output Current menu.
6)
Press
Right Arrow
to move from Reverse 4-20mA to
Fail-safe.
7)
Press
Enter
to enter Fail-safe.
8)
Press
Right Arrow
to change the setting between
No change, 20.5mA and 22.0mA.
9)
When the setting is correct, press
Enter
to save.
10)
When done,
press
ESC
to return to the Service Menu and press
ESC
a second time to return
to the Main Screen or; if you want to advance directly into Min Current, press
Enter
and then
Right Arrow
until Min Current appears.
