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Reference Manual
IP2048/RM, Rev AA
Section 4: Starting up
February 2015
4.2.13 Setting the output damping
Screen display: d
Factory default value: 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.
Note
A damping time of zero will not necessarily give an immediate response because the
MSP400RH and MSP900GH transmits nominally at once per second.
This menu option is in the programming menu. See Figure C-1 on page 76 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 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
to exit to the menu.
(The menu option “d” re-appears. To get to the next menu, press
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 (5) and (6 until the last digit is flashing, and edited as required.
8. Press the blue button
to confirm the new value. (The flashing stops.)
9. If the new value is correct, press the red button
to save. The display changes to the
next menu option.
10. If the new value is incorrect, press the blue button
to exit to the menu.
11. The menu “d” re-appears to re-start at step (2) or press
for the next menu.