KROHNE BM 70 M - Manual (Page 63)

BM 70 M 63
8.8.3 Error messages and their representation in display and at outputs
The following list gives all error messages that can occur:
Error messages Description of
error To correct device fault Output of errors via display and outputs,
depending on setting
Type Text Display Current output I Switching output S
In 2nd
line of
display ERROR
MSG.
Fct. 3.2.4 RANGE I
Fct. 3.3.2 FUNCTION S
Fct. 3.6.1
yes no 4-20/
2=E
4-20/
22=E
4-20 ERROR
OPEN
ERROR
CLOSED
OFF
LEVEL
DISTANCE
CONVERSION
REFLECTION
b) NO
M.VALUE
Evaluable
measuring
signals not
available If this error is displayed for a
lengthy period, this could mean
application-induced errors.
Check the application conditions! yes no yes no yes no
c) LINE
INTER-
RUPT
Power failure
detected During restart following a brief
power failure. Display vanishes
as soon as a valid measured
value is again present. yes no yes no yes no
SWEEP
LOW
Restricted
functioning of
microwave
board Measurement continued,
possibly with reduced accuracy.
If error present for longer time or
"VCO SWEEP" error (see below)
occurs, consult KROHNE
Service! yes no no no no no
WATCH
DOG
Processor
monitoring If error present for longer time,
this means an error on the CPU
board; needs to be replaced by
KROHNE Service! yes no no no no no
SPECT.
ERR.
Empty
spectrum faulty The current empty-tank spectrum
does not match the changed
operating parameters. Remedy:
record new empty spectrum (Fct
3.5.2). yes no no no no no
NO DISP. Configuration
faulty Reset parameters for the
displayed units (Fct. 3.2.2,
3.2.3). yes yes no no no no
CAL.
DATA
EEPROM
error: current
output
calibration data Calibration data of the current
output need to be checked by
KROHNE Service and reset if
necessary. yes no yes
(22 mA)
no yes no
CONFIG.
ERR
EEPROM
error:
parameters
faulty Check all operating parameters
and reset if necessary. If error
persists: EEPROM defective.
Needs to be replaced by
KROHNE Service! yes yes yes
(22 mA) no yes yes
d) EEPROM
ERR.
EEPROM
defective EEPROM defective. Needs to be
replaced by KROHNE Service! yes no yes no yes no
ADC
ERR.
Analog/digital
converter
defective CPU board defective. Needs to
be replaced by KROHNE
Service! yes no yes no yes no
INTEGR. Integrator
defective CPU board defective. Needs to
be replaced by KROHNE
Service! yes no yes no yes no
SIGNAL
DOWN
Measuring
signal too weak
for evaluation No measuring signal, usually
caused by a defect in the
electronics. yes no yes no yes no
VCO
RISE
Fault on
microwave
board Microwave board defective.
Needs to be replaced by
KROHNE Service! yes no yes no yes no
VCO
SWEEP
Fault on
microwave
board Microwave board defective.
Needs to be replaced by
KROHNE Service! yes no yes no yes no
e) FATAL
ERROR
CPU board
defective After a device start-up. If still
possible, invoke Error List and
note down any other errors.
Consult KROHNE Service! yes yes no no no no