Recommissioning - Siemens sitrans lc 300 Instruction Manual

Position 5
Display •
Up •
Button
•
Down •
Button
•
Both •
Buttons

Recommissioning

The LC 300 should be recommissioned whenever the transmitter or probes are replaced.
The LC 300 LRV will be programmed as factory default. The LRV can be re-adjusted in
menu 1 when the probe is at least 20 cm away from material.
If probe is fully covered in application:
Set URV by pressing both buttons for more than 1 second in menu 2 when probe is fully covered.
If probe is rarely or never fully covered, set the LC 300 to your application based on the following
example:
LRV (0%)
Actual level is at 45% of the measurement length of probe:
PV (45%)
The correct setting for URV:
URV =
When calculating the URV, best results are achieved when using the highest possible actual level.
7ML19985HE01
LCD shows the damping value. The damping value alters the speed
at which the primary variable will track the signal from the probe.
Pressing Up button for less than 1 second increases the damping
value in 0.01 steps. Damping can be set to any value from 1.0 to
1000.0
Holding the Up or Down buttons for more than 1 second increases
the step size to 0.1. If you continue to hold the button, the step size
increases to 10, 100, and 1000 (displayed as 1E3). When no button is
pressed for 4 seconds, the step size decreases to the next smallest
value. At each step size, press the buttons for less than 1 second to
adjust the value.
Pressing Down button for less than 1 second decreases the damping
value in 0.01 steps. Damping can be set to any value from 1.0 to
1000.0
When held for more than 1 second, the Down Button will increase
the step size by 0.1, 10, 100, and 1000. When no button is pressed for 4
seconds, the step size decreases to the next smallest value. At each
step size, press the buttons for less than 1 second to adjust the value.
Holding both buttons for more than 1 second sets the damping value
back to 1.0 (default).
Setting URV
Menu 1 reads 12.5 pF
Menu 0 reads 37 pF
[(PV–LRV) * 100 / actual level in %] + LRV]
[(37–12.5) * 100 / 45] +12.5
= 66.94 pF
SITRANS LC 300 – INSTRUCTION MANUAL Page 19