Milltronics InterRanger IR-200, Instruction Manual

Page: 20 / 61

InterRanger IR-200 20 PL-545
ECHO PROFILE GRAPH
The ‘Echo Profile Graph’ provides the operator with a
cross-sectional profile of the tank being monitored. The
graph depicts the relative strength of all echoes returned
from the tank and indicates the depth at which they occur.
By reducing the update time of the graph to it’s lowest
setting (1 = 7.5 seconds) the operator can view changes
in the tank as they happen. For normal operation this
setting (ECHO PROFILE UPDATE RATE) should be set
to 3 (30 seconds) or 4 (1 minute).
The Echo Profile Graph is the default screen that appears
when RUN Mode is enabled.
In the event that the InterRanger cannot detect an
interface level, ‘Err’ will appear in the numeric display and
the graphical display will continue to show the echo profile
with ‘Interface Not Found’ displayed at the top of the
screen.
TREND GRAPH
This display is a “virtual strip chart recorder” showing the
level of the interface being monitored over the last 3, 6,
12 or 24 hour period (TREND GRAPH TIME SCALE
parameter).
This graph gives the operator an overview of how the
interface of interest fluctuated over the selected time
scale. This information is useful when the tank is
inspected on a daily basis.