Siemens SITRANS LR500 Series - Master Reset Functionality; Device Wear Information

Master reset
Factory Defaults
Factory Defaults resets all parameters to the default settings with the following exceptions:
• Device Address
• Write Protection
• Learned TVT curve
• Auto False Echo Suppression Range
• Frequency
1. Open the menu Device – Master Reset, select OK to perform a reset to Factory Defaults.
2. After the reset is complete upload parameters to the PC/PG. (If you are performing a reset
after replacing the device with a di󹪜erent instrument, do not upload parameters to the PC/
PG).
Wear
Reports the number of days the device has been operating, and the number of times it has been
powered up.
Open the menu Device – Wear to view:
• Powered Days
• Power-on Resets
Note
P
owered days are whole days only. Fractional days are truncated.
HART Communication
Se
ts the number of request/response preambles (default 5).
The preamble consists of three or more hexadecimal FF characters (all 1s). This allows the
receiving modem to get its frequency-detection circuits synchronized to the signal after any
pause in transmission.
We recommend you do not change the default value (5).
Process variables
To compare outputs in real time open the menu View – Process Variables and click
on Overview to see reading (level, space, distance); analog output; device status; and current
electronics temperature.
To see highest and lowest electronics temperatures, navigate to Level Meter > Maintenance
and Diagnostics > Electronics Temperature.
Operating
8.6Remote operation
SITRANS LR500 series with mA/HART
Operating Instructions, 03/2024, A5E51099898-AA 105