Siemens HydroRanger 200 HMI - Display (2.12.); Local Display Backlight (2.12.1); LCD Contrast (2.12.2.)

Parameter reference
8.6 Setup (2.)
HydroRanger 200 HMI
236 Operating Instructions, 06/2018, A5E36281317-AC
The Echo Lock Window is a distance window [Units (2.1.1.) (Page 162) ] centered on the
echo and used to derive the Reading. When a new measurement is in the window, it is re-
centered and the new reading calculated. Otherwise, the new measurement is verified by
Echo Lock (2.11.5.4.) (Page 235) before the reading is updated.
When
0
is entered, the window is automatically calculated after each measurement. For
slower
Response Rate (2.3.4.) (Page 174) values, the window is narrow; for faster Response
Rate (2.3.4.) (Page 174) values, the window becomes wider.
Fuzz filter (2.11.5.6.)
Stabilizes the reported level, due to level fluctuations (such as a rippling or splashing liquid
surface) within the Echo Lock Window (2.11.5.5.) (Page 235).
Index
Single-point model
Dual-point model
Global
Transducer
Values
Range: 0 ... 100 (0 = OFF)
Altered by
Response rate (2.3.4.) (Page 174)
Related
• Span (2.2.2.) (Page 169)
• Echo lock window (2.11.5.5.) (Page 235)
This value [in % of Span (2.2.2.) (Page 169)] is automatically altered when Response Rate
(2.3.4.) (Page 174) is changed. The higher the value entered, the greater the fluctuation
stabilized.
8.6.12
Display (2.12.)
8.6.12.1
Local display backlight (2.12.1)
Controls the LCD backlighting.
Index
Global
Options
OFF
*ON
Timed
The backlight can be forced ON or OFF, or be controlled by a programmer, in which case it
will turn OFF five minutes after the last key is pressed.
8.6.12.2
LCD contrast (2.12.2.)
Adjusts the luminance of the bright and dark colors of the display.
Options
Range: 0 (Low contrast) to 20 (High contrast)
Preset: 10