Siemens SITRANS LUT400, Operating Instructions Manual

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Page 118 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS A5E33329501
mmmm
m
Gener
a
l Oper
at
ion
Example weirs
These weirs could require universal calculation.
Trends
To view trend lines, navigate to
3. Maintenance and Diagnostics
>
3.2. Diagnostics
>
3.2.2.
Trend
. The PV (in percentage) is logged at five minute intervals and trend displays up to 3000
data points since last power up.
• Press RIGHT arrow to request a trend.
• Use UP or DOWN arrow to scroll to an icon. When an icon is highlighted,
that feature becomes active.
• To move the cross-hair, press RIGHT arrow to increase the value, LEFT arrow
to decrease.
• To Zoom into an area, position the cross-hairs at the center of that area, select
Zoom icon, and press RIGHT arrow
. Press LEFT arrow to Zoom out.
• To return to the previous menu, select Exit icon then press RIGHT arrow .
Notes:
• When a fail-safe condition has occurred, it will appear as a gap in the Trend line.
• Trend view will
not timeout. This view will display on LUI until the exit icon is
selected.
Poebing
approximate
exponential
compound
-1 -2 -3
0
50
100
0
current measurement
exit icon
zoom icon
pan left/right icon - selec
mea
su
rem
en
t pe
rc
en
ta
ge
hours
cross-hairs