KROHNE BM 70 M - Manual (Page 64)

64 BM 70 M
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 M. 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.
8.9 Messages on start-up
When the BM 70 M is powered it will take about 1 minute before the first measured value is
displayed. During this time the following flashing messages appear in sequence in the display:
STARTUP - READY - START
After a short line failure (lasting up to several minutes) it is possible that "LINE INTERRUPT" will
be displayed. In such a case, measurement is continued subsequently taking into account the
history prior to the interruption.
8.10 Faults and symptoms during start-up and measurement
• You will be able to eliminate most of the faults and symptoms likely to occur with the BM 70 M
by consulting the following chart.
• For easy reference, faults and symptoms are divided into the following groups:
- Group D: Display
- Group A: Signal output
- Group DA: Display and signal output
- Group M: Markers 1 - 6 in the display
- Group S: Switching output
•
Please go through these charts before contacting KROHNE Service. Thank you!
Group D: Display
No.
Fault / Symptom Cause Corrective action
D1 Display totally
"dead".
Power source switched off. Switch on power source.
Primary fuse defective. Change primary fuse as
described in Sect. 9.3.
D2 Display flashes
"FATAL ERROR"
shortly after power
has been switched
on.
BM 70 M is defective. Replace BM 70 M signal
converter (instrument head) as
described in Sect.7.2 .
D3 Display flashes "MIN
VALUE" or " MAX
VALUE" when
numerical values are
being set. The set numerical value is
outside the acceptable
setting range. Note MIN. or MAX.VALUE
displayed and set higher or
lower numerical value.