User's Manual

Page II-26 SITRANS LR 460 (4-20 mA) – INSTRUCTION MANUAL 7ML19985JM01
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mA: Startup
4-20 mA Start Up
Only two steps are necessary for a Quick Setup (see page 29 for detailed instructions):
1. Use the handheld programmer to set the PROFIBUS address locally.
2. Use SIMATIC PDM to calibrate the four set points: High and Low Calibration Point,
and High and Low Level Point.
SITRANS LR 460 automatically starts up in RUN mode and detects the material level. The
LCD displays the material level referenced from the Low Level Point
1
(the output of
Analog Input Function Block 1 or 2). System status is displayed on the LCD, or on a remote
communications terminal.
2
Startup Display (RUN mode)
1 – Number of the active Analog Input Function Block (AIFB 1 or 2)
2 – Primary display: shows level, space, distance or volume (Output of the active AIFB)
3 – Units: the associated engineering units of the primary value (m, cm, mm, ft, in, or percent) if
applicable
4 – Echo status indicator: Reliable Echo or Unreliable Echo
The Reliable Echo icon is visible during normal operation.
If LOE is pending
2
the x flashes, alternating with the two horizontal bars.
When LOE becomes active, the x becomes solid and the auxiliary display shows
fault code S: 0.
5 – Auxiliary display: shows distance,mA value (HART only), confidence, or temperature, in
response to request via Siemens Milltronics handheld programmer
6 – Heartbeat: a small heart-shaped icon flashes on and off once per second.
1.
See Calibration on page 29 for an illustration.
Note: Frequently switching the device off and on causes wear of the electronics
(monitored using Parameter ???).
2.
See LOE Timer on page 84 for more details.
2 98.82
3.800
mA
%
2 98.82
S: 0
%
Normal operation
1
3
4
2
Failsafe operation
5
1
6
3
4
2
5
6