BERTHOLD TECHNOLOGIES LB4710-050, User Manual, Page: 214 / 227

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
Chec
ked onl
y
in cas
e of
a
cal
ibra
ti
on
in code 3
6
.