Technical data

BKI 03 ATEX 027X  spa3804a0600p_06  19 / 44
P04
P46
h
P06
P06: - - - - Far-end blocking FACTORY DEFAULT: 0
Far-end blocking is the range below the level
set in parameter P06. The far-end blocking
can be used to avoid disturbing effect of
stirrer or heaters at the bottom of the tanks.
Detecting echoes in this range the unit
provides special signals.
A.) Measuring level or content
Level sinking below
 the value of P06 current output is
according to the value of the far-end
blocking and further
 below SUB 0 (7/8 of P06) the ERROR
CODE 10 will be transmitted via HART
P06=X
SUB 0
X/8
20mA
4mA
H
 Level rising over value of far-end blocking:
The calculation of level and volume will be based on the programmed tank dimensions, therefore the measured or calculated process values will
not be influenced in any way, by the far end blocking value.
B.) Open channel flow metering
Far-end blocking will be used for those small levels below which the accurate volume flow calculation is no longer
possible.
 Level in the flume/weir sinking below the blocked out range:
- Output current value will be according to the value of Q = 0
- 0 value transmitted via HART for display of „No Flow” or 0
 Level in the flume/weir rising over the blocked out range:
The calculation of volume flow will be based on the programmed flume/weir data; therefore the measurement
values will not be influenced in any way, by the far end blocking value.