7ML19985GE04
SITRANS LC500 – OPERATING INSTRUCTIONS
Page 57
Appendix A
Damping
Damping slows the measurement response to a change in level, and is used to stabilize
the reading
1
. The Damping Value is not in seconds but is a factor that controls the rate of
change for the dynamic value of the TV currently selected.
The increment/decrement step size is subject to the setting on Menu 09.
1. Set the rotary switch to A.
2. Press the RED (+) or the BLUE (–) button to alter the value between 1 and 10,000.
or: Press and hold a button to start a repeat function,
or: Press and hold both buttons simultaneously to reset the value back to 1.00.
Lower Sensor Limit
The Lower Sensor Limit (LSL) is the lower of two limit settings. Whenever the PV value
(Menu level 0) drops below the Lower Sensor Limit, the measurement is considered at
fault and the LCD displays ooL, alternating with PV.
If the display mode is in %, this selection is disabled and the LCD displays - - - -.
The transmitter variable on which this menu selection operates is chosen in Menu 01.
The increment/decrement step size is subject to the setting from Menu 09.
1. Set the rotary switch to B.
2. Press the RED (+) or BLUE (–) buttons to alter this value.
or: Press and hold a button to start a repeat function,
or: Press and hold both buttons simultaneously to take the current PV reading as
the new setting.
1.
For example, in an application with an agitated surface.
Menu
Item
Affected
by:
Rotary
Switch
Position
Left
Arrow
Description
Values
0A
01, 09
A
Off
Damping
Range: 1 to 10,000
Factory setting
1.00
Menu
Item
Affected
by:
Rotary
Switch
Position
Left
Arrow
Description
Values
0B
01, 09
B
Off
Lower Sensor Limit
Range 0 to 3300
Factory setting
1.66