BERTHOLD TECHNOLOGIES LB 444 - Error Messages During Measurement

04/03 347 LB 444
46
6.4.4 Error Messages during Measurement
Error
no.
Message Cause, Notes Remedy
1 Rate Overflow Count rate > 520000 cps,
with large pipelines,
pipeline possibly empty
Replace detector, stop
measurement while
emptying pipeline, e.g. via
digital input
2 No Detector Rate Detector faulty Replace detector
3 Wrong HV Radiation exit channel of
shielding container closed,
detector faulty.
Open radiation exit
channel, replace detector
4 Pt 100 wrong
temperature
Cable detector – Pt 100
interrupted, detector faulty,
Pt 100 faulty
Check cable, replace
detector or Pt 100
5 4 –20 mA faulty Input current below 4 mA,
evaluation unit faulty.
Check input current,
replace evaluation unit.
6 Detector
temperature > 65°C
Detector temperature too
high, detector faulty
Cool detector, if necessary,
replace it
7 Trouble with
detector
communication
Cable detector – evaluation
unit interrupted or too long
or cable resistance too
high, detector faulty,
evaluation unit faulty
Replace cable or use bigger
wire cross-section
Replace evaluation unit.
8 Measurement
stopped
Measurement process
stopped via digital input
or
measurement stopped
because count rate
threshold has been
exceeded or not reached.
Open digital input.
Disable count rate
thresholds to identify fault.
9 Detector
temperature > 80°C
Detector temperature too
high, detector faulty
Replace detector
10 Missing calibration Measurement was started
without calibration
Perform calibration
11 Power fail
> 1 month
Check date after long
period of power failure
If this error message
appears already after a
brief period of power
failure: replace Li–battery.
12 No input allowed Input locked via password Enter password
47 Rate < Minimum Enter actual count rate
< than entered min. count
rate:
shielding container closed?
detector fault?
Replace detector
Open shielding container
48 Rate > Maximum Enter actual count rate
> than entered max. count
rate:
detector fault?
pipeline empty and
shielding container not
closed?
Replace detector
Close shielding container