Siemens SITRANS LR250 Operating Instructions Manual page 158

Parameter reference
Manufacture Date (4.6.)
Read only. The date of manufacture of the SITRANS LR250 (yy mm dd).
Powered Hours (4.7.)
Read only. Displays the number of hours the unit has been powered up since manufacture.
In SIMATIC PDM, open the menu Device – Wear.
Power-on Resets (4.8.)
Read only. The number of power cycles that have occurred since manufacture.
In SIMATIC PDM, open the menu Device – Wear.
LCD Fast Mode (4.9.)
Note
• LCD Fast Mode takes effect only after 30 minutes of inactivity. (Each time the device is
powered up, a further 30 minutes of inactivity is required.)
• LCD Fast Mode affects Measurement mode only; it has no effect on Navigation mode.
Enables a faster rate of measurement from the device by disabling most of the display area.
Only the bar graph will be refreshed when LCD Fast Mode is set to ON.
Values
LCD Contrast (4.10.)
The factory setting is for optimum visibility at room temperature and in average light conditions.
Extremes of temperature will lessen the contrast.
Values
Adjust the value to improve visibility at different temperatures and in light conditions. Change the
value in small steps to ensure you can continue to read the display.
156
ON
* OFF
Range: 0 (High contrast) to 20 (Low contrast). Default: 10
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC