Operating Manual
Accu-Wave Chapter 5 Radar Fine Tuning 
TN Technologies 5-19 
“Clutter Data Management” Menu 
Display  Comments 
Clutter distance 
{from REF LINE} 
0.000 ft  
{7.826 MAX} NEXT↓↓ 
If this entry is 0.0, the Clutter Data Mgmt menu items 
will not be displayed. Maximum allowable clutter 
distance is 7.147 feet or 25% of the maximum 
measurement range, whichever is greater. When a 
clutter erase command is executed, clutter data is 
collected to the maximum clutter distance. The 
“Clutter distance” defines which portion (or all) of 
the clutter data will be removed from the spectrum.  
Do not disable 
Erase clutter 
Change to “Do”→→ 
Continue as is.↓↓ 
May be used to disable clutter erase for diagnostic 
purposes.  
Direct Entry Code: ‘041080’ 
Get clutter data & 
save result. 
←←Exit this menu. 
 NEXT↓↓ EXECUTE CMD→→ 
Press → to execute the “Get clutter data” command. 
The distance to the material surface must be greater 
than the clutter distance value, or the valid echo will 
be removed as clutter. The actual level can reach the 
clutter area during operation, but can not rise above 
any physical features associated with the clutter.  
Note:  Clutter Erase is best performed when the 
tank level is low (but not empty) and the 
surface of the process material is being 
agitated. If the measurement range is over 
27 ft (8m), you must redo the learn (get) 
clutter if you change measurement range. 
Direct Entry Code: ‘104’ 
service 
clutter items→→ 
 NEXT↓↓ 
[Service only item] 
Provides an additional set of diagnostic tools, if 
service only items are enabled. See “Service Clutter 
Items” table below.  
Automatic 
clutter data 
update time 0 min 
 NEXT↓↓ HELP→→ 
Automatic update of clutter data is activated by 
entering a non-zero time. If this entry is zero, clutter 
data update is performed by manual command only. 
When active, new clutter data is taken at the interval 
entered. The latest clutter data is saved to non-volatile 
memory every 4 hours or at the update interval, 
whichever is the longest.  
Note: Use auto update only when clutter can 
change over time due to buildup on the 
seal or nozzle. You should do a manual 
clutter data update before entering an auto 
update time. 










