KROHNE BM 100A Handbook User Manual
Page 33

 
 
Handbook BM 100 A
33
 
3.4.5 Summary of User Functions 
 
The table below provides an overview of all parameters that can be set in the configuration menu. 
Reset default values are in bold type in the “Input Range” column. 
Function (Fct.) 
Input Range
Description
1.0.0 OPERATION
1.1.0 BASIS.PARAM
These functions concern the 
display only 
Enter 0.1 to 60 m 
(3.3 to 197 ft.) 
1.1.1 TANKHEIGHT
As per order
This is the distance from the flange to 
the bottom of the tank. Can be set to 
the probe length to ignore the bottom 
non-linear & non-measurable zones. 
1.1.2 
 
HOLD DIST. 
(Hold Distance) 
Enter a value from 0 mm / 
0 in to probe length. 
The Minimum value = 0 m 
Warning : Critical Parameter
• Twin probes
 Probe length<2m/6.5’ 
 0.25 m / 9.8 in 
 Probe length>2m/6.5’ 
 0.45 m / 17.7 in 
• Single probes 
 Probe length<2 m/6.5’ 
 0.25 m / 9.8 in 
 Probe length>2 m/6.5’ 
 0.60 m / 23.6 in 
• Coaxial probe 
0.05 m / 2 in
This prevents the gauge from 
displaying a zone near the flange 
where measurements may not be 
possible. Function 1.5.3 “Detection 
Delay” should be used to suppress 
any non-product reflections as 
reflections within this zone are still 
registered. 
1 to 100 seconds
1.1.3 TIME
CONST.
(Time Constant)
5 seconds
This function filters possible signal 
fluctuations when the tank is turbulent. 
1.1.4 WIN.FROZEN
(Window Frozen)
Select YES or NO
Warning : Critical Parameter NO
(window
open)
This causes the instrument to freeze 
or open its search window if product 
reflection is lost. See function 1.1.5 / 
1.1.6 for more details. “YES” means 
the gauge will only search in the zone 
specified in Fct. 1.1.5. 
Enter 0.2 m / 7.9” to 
probe length, L 
1.1.5 LEVEL
WIN.
(Level Window)
• Powders
 4.0 m / 13.12 ft 
• Others 
0.5 m / 19.7 in
Sets the operating window for level 
measurement. 
The window is centred around the 
level and moves as the level changes. 
If product reflection is lost, the 
instrument reacts according to the 
configuration set in Function 1.1.4. 
The value refers to the total window: a 
value of 500 mm / 20 “ denotes a 
window +/-250 mm / +/-9.84” around 
the measurement. 
Enter 0.2 m / 7.9” to 
probe length, L 
1.1.6 INTERF.
WIN.
(Interface Window)
1.0 m / 3.28 ft.
Sets the operating window for 
interface measurement. Refer to Fct. 
1.1.5 for details. 
1.1.7 PROBE
LGTH.
(Probe Length)
Enter 0.1 m / 7.9” to 
probe length 60 m / 197ft. 
Warning : Critical Parameter
Per sales order
Length of probe, L
1
, measured from
the flange. Do not include the 
counterweight length. Modify this only 
if the probe length has been changed. 
