KROHNE BM 100A Handbook - Manual (Page 27)

Handbook BM 100 A 27
Tank height
Configuration Mode user function 1.1.1
This function is usually either defined as true tank height or as factory configured probe length,
L
1
if the former is not supplied by the customer in the order.
Why change the tank height?
• setting the parameter in Function 1.1.1 to L
1
avoids having a non-measurable zone
underneath the probe where the measurement on the display freezes.
• when setting up a measurement scale as explained on the following pages, this means that
the level at the end of the probe will be taken as zero instead of the tank bottom.
How tank height affects measurement when either Level or Distance is measured
1 True tank height
2 Measurable
height (factory
configured probe
length, L
1
)
3 Non-measurable
zone
4 With true tank
height (1) set in
Function 1.1.1 of
the User’s menu.
5 With factory-
configured probe
length, L
1
, set in
Function 1.1.1. of
the User’s menu.
Example procedure 1:
• to change true tank height (10000mm) to factory configured probe length, L
1
(9000mm) , and
then save the new parameter. Refer to item 5 in the diagram above.
Step
Action Press buttons to
finish step Information displayed at the end of
each step
1 Start from Operating
Mode screen n/a 6750
LEVEL mm
2 Go to function (fct.) 1.1.1
from Operating Mode →,→,→ Fct. 1.1.1
TANK HEIGHT
3 Enter function (current
value: 10000mm) → 10000.00
4 Modify value to 09000.00
(millimetres) ↑,↑,↑,↑,↑,↑,↑,↑,↑,
→,↑,↑,↑,↑,↑,↑,↑,↑,
↑
09000.00
5 Exit to Save function ↵,↵,↵,↵ STORE Yes
6 Save & exit to Operating
Mode ↵ 5750
LEVEL mm