Start Up; Self-Test; Multi-Display; Local Programming - Siemens Sitrans LR400 Instruction Manual

Start Up

Self-test

When power is supplied, the device performs a self-test. Then, when the multi-display
appears, the device is ready for programming.
Frequent switching off and on of the device causes aging of the electronics
Note:
(monitored using Parameter 3.1).

Multi-display

The multi-display shows on the LCD after a successful self-test with the first line showing
level output and the second line showing signal-to-noise ratio (factory setting):
+ 1 2
+ 3 0

Auto-Setup

After switching on the SITRANS LR400, and after a successful self test, press LEFT
access the parameters. Set the Auto-Setup parameters to make the system operational:
(see page 27)
• The language of the local user interface
• The unit of length of the measured level
• The nozzle height in the selected unit of length
• The vessel height in the selected unit of length
• The LRV (lower range value) as a distance from the bottom of the vessel
• The URV (upper range value) as a distance from the bottom of the vessel
• The damping of the measured level in seconds
• The application type
• The bus address by PROFIBUS PA communication (on PROFIBUS models)
Enter the necessary values as described in Parameters on page 26.
It is strongly recommended that a Customer Code (Parameter 5.2) be entered
Note:
after all programming is completed to secure the programmed values from changes.
If the multi-display does not appear or displays incorrect measured values after Auto-
Setup, proceed as described in Troubleshooting on page 81.
Parameter
Refer to the
7ML19985FH06 SITRANS LR400 (7ML5421) – INSTRUCTION MANUAL
. 3 0 0 m
d b

Local Programming

When the multi-display appears on the LCD, begin local
programming using the hand programmer. To access the
parameter settings, press LEFT
as the first LCD line. Then program the unit beginning with the
Auto-Setup parameters.
section that begins on page 26 for a list of available parameters.
once. Main Menu is visible
Page 19
to