Operating The Sitrans Probe Lu; Run Mode; Display; Normal Operation - Siemens SITRANS Probe LU Kurzanleitung

Operating the SITRANS Probe LU

SITRANS Probe LU has two modes of operation: RUN and PROGRAM.

RUN Mode

SITRANS Probe LU automatically starts in RUN mode when power is applied, and detects
the material level. The primary reading displays the material level (in meters) referenced
from Empty (process empty level). This is the default start-up display mode.
System status is displayed on the LCD, or on a remote communications terminal.

Display

Normal operation

2
1
6
1 – Primary Reading (displays level, distance, or volume (or flow
percent)
2 – Secondary Reading (displays Parameter number for Auxiliary Reading
3 – Echo status indicator: Reliable Echo
4 – Units or Percent
5 – Active bar graph represents material level
6 – Auxiliary Reading (depending on the parameter selected, it displays milliAmp value,
distance or confidence, with units where applicable)
If the echo confidence drops below the echo confidence threshold
starts running. When the timer expires, the letters LOE alternate with the reading every
two seconds, and the Reliable Echo indicator is replaced by the Unreliable Echo indicator.
When a valid reading is received, the level reading display returns to normal operation.
1. P050 Vessel (or Channel) Shape
See
volume.
2.
Press to display the auxiliary reading field when in RUN mode.
3.
P804 Confidence Threshold
See
Page 14 SITRANS Probe LU – INSTRUCTION MANUAL
3
4
5
m
on page 54 for more detail.

Fail-safe operation

3
1
6
or Unreliable Echo
on page 32, for details on displaying flow instead of
4
5
m
1
), in either units or
2
)
3
, the failsafe timer
7ML19985HT01