BERTHOLD TECHNOLOGIES LB4710-080 - Page 214

Chapter 6 Error Messages
Mini-Switch LB 471
69
Error
number
Error
sub-code
Designation
Display
Reaction of
measurement
Alarming relay
Cause
Remedy
35
01
1
ECR < ZCR
2
!!
RUN
-
Empty count rate lower than
zero count rate.
Determine empty count rate or /
and zero count rate new.
02
ECR < FCR
3
Empty count rate lower than full
count rate.
Determine empty count rate or /
and full count rate new.
03
FCR < ZCR
Full count rate lower than zero
count rate.
Determine full count rate or / and
zero count rate new.
04
C 12 > C 14
Time constant is higher than the
maximum time constant in code
14
Check time constant.
Check calibration data or
increase code 14.
05
Distance switch
point to FCR
Distance switch point to full
count rate is too small. Danger
of switching errors.
Adjust switch point, or increase
time constant.
06
Distance switch
point to ECR
Distance switch point to full
count rate is too small. Danger
of switching errors.
Adjust switch point, or increase
time constant.
07
Hysteresis
too large
Hysteresis too large.
Increase time constant or reduce
hysteresis.
08
Time constant too
small
Time constant too small
Increase time constant or set switch
point further into the center.
09
Time constant
too big
Time constant exceeds the
maximum value of 999s.
Check the calibration and the
parameter settings.
39
01
Source replace-
ment
!!
RUN
Dependent on
code 44
The source activity is so low that
the source has to be replaced
within the next 12 months. The
error has been triggered by code
14 or code 55.
Check year for source replacement
in code 55!
Check time constant in code 12
and 14!
Check calibration values in code 20,
21!
If necessary, replace source.
40
01
Safe switching
function not
ensured
!!
RUN
Dependent on
code 44
Switch point does not have the
required distance to empty or
full calibration
or time constant is too low.
Check calibration. Adjust switch
point setting or/and time constant.
Table 8: Error messages
1
ECR = empty count rate
2
ZCR = zero count rate
3
FCR = full count rate
Checked only in case of a calibration in code 36.