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Reference Manual
IP2048/RM, Rev AA
Appendix F: Configuring Using HART
February 2015
F.3.20 Damping (P020)
The damping value is a time constant in seconds, and is applied as smoothing to the level
reading and the output current.
A larger value will have the effect of smoothing out rapid changes of level, and smooth out the
effects of turbulence and ripples on the liquid surface.
A value of zero can be edited, in which case no smoothing is applied and transmitter readings
immediately change the output.
Note
The pulse repetition frequency of the transmitter is one pulse per second, which means that
the system response time cannot be faster than this.
Field Communicator
To view or change the damping:
1. From the Home screen, select 2: Configure.
2. Select 2: Manual Setup.
3. Select 1: Basic Setup.
4. Select 5: Damping P020.
5. If a change is required:
(a) Input a new value, and then select “ENTER” to save it.
(b) Press “SEND” to update the transmitter.
Note
When messages appear, take appropriate action if needed and press “OK”.
Mobrey MCU900 Series control unit
To view or change the damping:
1. From the Main Menu screen, select SETUP.
2. Select the transmitter (e.g. “Tx1:MSP400RH”).
3. Select OUTPUT, CURRENT., and then Damping.
4. Follow the on-screen instructions to edit and save the new setting. (Press the Enter
( ) key if prompted to change mode to “off-line”).
5. Select “Quit” to exit to the previous menu.
Fast Keys
2, 2, 1, 5
Damping P020
3.0 s
3.0
ESC
DEL ENTER
HELP
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FN
(Field Communicator Screen)
Damping P020
3.0sec
Esc=Quit =Edit
(Mobrey MCU901 Screen)