Name
Date
Designation
Prepared
JF 17.07.13
Service Manual BB 150
Index
Name
Date
Document No.
Page
File
50079823_09_CN
50 079 823
1/ 1
9 ERROR
TABLE
Aside from the current error, outputting the unit's error history may be helpful in
correcting a problem.
To output the last 10 errors, press the
i
and the
s
/
t
keys. The most recent error is
displayed in position 1, the oldest in position 10 (refer to the section on error storage in
the operating instructions).
Error table
Code
Cause
Fault condition
≡≡≡
Communications between
display mP and main board
interrupted.
The display is not receiving display values from
the master processor.
42
Main board NVRAM read
error
Default values were loaded.
43
Main board NVRAM read
error
The mirrored values were loaded.
44
NVRAM defect
Values of the measuring cell are not
overwritten, unit runs using default values
54
Set value error
Error in the calculation of the ser values. The
processor performs a “reset”.
55
I²C bus error
Data transfer to the I
2
bus interrupted.
66
Deviation between
temperature probe PT1000
and LM 75 is too large.
(No longer plausible.)
The validity of the temperature signals is no
longer assured because the permissible
deviation between the measured values for:
The incubation mode are > + 2 °C, or;
The decontamination mode are > + 5 °C.
77
CO
2
calculation range
exceeded.
•
The offset value for the CO
2
adjustment
made by the cal function exceeds the
maximum permissible adjustment range of
+ 10.0 % CO
2
•
The calculated temperature adjustment
factor exceeds the maximum permissible
adjustment range of 0.8 ... 1.2.
88
auto-start error
The total running time (1080 min.) has passed
without the routine concluding, or the
maximum CO
2
countervoltage adjustment
value has been exceeded.
99
Glass door open or door
switch defective.
The door or door switch have remained in the
"open" state for more than 10 min. (The door
switch contact is closed when the glass door is
open!!)
