KROHNE BM 70 A_P EN - Manual (Page 57)

Installation and operating instructions BM 70 A/P Page: 57 11/00
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
(Sect
.
8.8.1)
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
8.8.4 Error display during measurement
In the setting level under Fct. 3.2.4 ERROR MSG. (error messages), it is possible to select whether errors are to be
displayed during measurement. When YES set: "error message(s)" are displayed automatically to alternate with the
measured value. The errors will continue to be displayed until their cause has been eliminated.
8.8.5 Error list
All errors are stored in an Error List in the BM 70 A/P. The errors are retained in this list until: 1. the cause(s) of the
error(s) has been eliminated and 2. the error has been acknowledged. Errors that have been acknowledged but whose
cause has not been eliminated are retained in the Error List.
To invoke the Error List, press keys
↵ ↑ → →
. With
→
you can page through the list. For further information on the
Error List: see Sect. 8.3.