50
Reference Manual
00809-0100-4840, Rev CB
February 2015
4.4.13
Setting the output damping (on the 3102/3105)
Screen display:
d
Default:
3
The damping value is a time constant in seconds, and is applied as smoothing to the displayed
PV and the output current.
A new value may be entered up to 999 seconds. A large value will have the effect of smoothing
out rapid changes to the PV value, and smooth out the effects of turbulence and ripples on the
liquid surface. (It would be unusual to select a value greater than 30 seconds).
A value of zero may be edited, in which case no smoothing is applied to the Current Output and
transmitter readings immediately change the output. However, because the 3102 and 3105
transmit nominally at once per second, a damping time of zero will not necessarily give an
immediate response.
Note
This menu option is in the programming menu. See
for a map of the
menu structure, showing how to access the menus.
To change the damping value
1.
If entering the menu system from the PV display, press the green button
repeatedly
until the “d” menu option is indicated (see the above note).
2.
Press the blue button
to enter the “d” menu and to display the present damping
value.
3.
If the damping value is correct, press the red button
and then the green button
to
get to the next menu option. Otherwise, continue with step (
).
4.
Press the blue button
to start the editing mode. The first digit flashes to indicate it
can now be edited.
5.
Press the green button
repeatedly to edit the flashing digit.
6.
Press the blue button
to move to the next digit. The digit flashes to indicate it can be
edited.
7.
Repeat steps (
) until the last digit is flashing, and edited as required.
8.
Press the blue button
to confirm the new value. (The flashing stops).
9.
Press the red button
to save if the new value is correct, or press the blue button
to
not save. Afterwards, depending on the button pressed, either the “d” menu or the
next menu appears.
Summary of Contents for Rosemount 3101
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Page 68: ...56 Reference Manual 00809 0100 4840 Rev CB Section 4 Starting up February 2015 Starting up ...
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