Berthold LB 4700 - Page 65

LB 4700
7 Troubleshooting
56926BA2, Rev. 02, 04/2019
61
Code
Text
Description
Namur107
Correction
D303
Cps Zero
(Meas)
No count rate in
the measuring
channel.
F
The photomultiplier may be defective.
Check the photomultiplier or contact
BERTHOLD.
D304
Cps Zero
(Ctrl)
No count rate in
the control
channel.
S
The photomultiplier may be defective.
Check the photomultiplier or contact
BERTHOLD.
D305
Cps Zero
(Aux)
No count rate in
the auxiliary
channel.
S
The photomultiplier may be defective.
Check the photomultiplier or contact
BERTHOLD.
D306
Cps
averaging
The count rate
fluctuates more
than permissible.
F
If the event occurs frequently, contact
BERTHOLD.
D307
Threshold
(Meas)
The voltage of
the measuring
channel deviates
from the
admissible set
value.
F
Restart the device.
If the event occurs frequently, contact
BERTHOLD.
D308
Threshold
(Ctrl)
The voltage of
the control
channel deviates
from the
admissible set
value.
S
Restart the device.
If the event occurs frequently, contact
BERTHOLD.
D309
Threshold
(Aux)
The voltage of
the auxiliary
channel deviates
more than
allowed from the
control value.
S
Restart the device.
If the event occurs frequently, contact
BERTHOLD.
D310
Threshold
(RID)
The voltage of
the RID channel
deviates from the
admissible set
value.
S
Restart the device.
If the event occurs frequently, contact
BERTHOLD.
D311
HV
voltage -
PMT
An error in the
high-voltage
supply of the
photomultiplier
was detected.
F
Check detector electronics and
photomultiplier.
If necessary, contact BERTHOLD.
D312
HV
limited
The current high
voltage deviates
from the average
high voltage by
more than 20%.
F
Check detector electronics and
photomultiplier.
If necessary, contact BERTHOLD.
D313
Lower
Avg. HV
limit
The average HV is
more than 20%
lower than the
Default-HV.
F
Check Default HV for plausibility and
change if necessary.
Check detector electronics and
photomultiplier.
If necessary, contact BERTHOLD.