KRAL BEM 500 - Page 41

14 Troubleshooting
14.1 Fault table
Further fault Cause and elimination
When the electronic unit is
switched on, the following
alarms are displayed:
o 8.07Alarm. Max.
flowA exceeded.
Check pick up!
o 8.10Alarm. Analog
output1 or 2 scaling
exceeded!
o 8.11Alarm. Change
of directionA
exceeded, check 30/
s signals!
o 8.12 Alarm. Change
of directionB
exceeded, check 30/
s signals!
o 8.21 Alarm. Max.
flowB exceeded.
Check pick up!
o Use a power pack 24VDC 15W or insert a debounced switch between the electronic unit and
power pack.
o Shield the lines to the pick ups and terminate the shield to Gnd (chassis) or ground.
POWER FAIL no
counting
Falls below supply voltage 17.5V
Keyboard background
illumination flashes.
There is an input error.
o + Press simultaneously.
-> The existing errors are displayed.
o Eliminate errors.
Overflow of the total value After an overflow of the total value the electronic unit displays the following:
o For 3 decimal places:
±1999999,999
o For 1 decimal place:
±199999999,9
o Specify another unit for total, e.g. m
3
instead of l. After the modification, the total value is still avail-
able after the overflow.
o Reduce the number of decimal places.
Operating instructions
OIE 12en-GB Edition 2020-03
41