DataLoop™ LI25 Level Controller
Instruction Manual
28
MN301034 rev D
Contrast
(
contr
)
LCD contrast is adjustable through the front panel buttons. Select contr and
increase level using Up Arrow/Max button. Settings 1 through 9 will be displayed
on the screen as 11111 to 99999. Settings 1 through 4 are usually best when
viewing from below the angle perpendicular to the display. Settings 5 through 9
are usually best when viewing straight on (meter is at eye level) or when viewing
from above.
Noise Filter
(
fltEr
)
Most applications do not require changing this parameter. It is intended to help
attain a steady display with an unsteady (noisy) input signal.
The field selectable noise filter averages any minor or quick changes in the input
signal and displays the reading with greater stability.
Increasing the filter value will help stabilize the display, however this will reduce
the display response to changes on the input signal.
The filter level may be set anywhere from 1 to 199.
Noise Filter Bypass
(
bypAs
)
The meter can be programmed to filter small input changes, but allow larger input
changes to be displayed immediately, by setting the bypass value accordingly.
If the input signal goes beyond the bypass value, it will be displayed immediately
with no averaging done on it.
The noise filter bypass value may be set anywhere from 0.2 to 99.9. It
corresponds to percentage of full scale.
Increasing the bypass value may slow down the display response to changes on
the input signal.
Pressing the
Right Arrow/Reset
button will also bypass the filter and provide an
instant update.
