Siemens MOBILETT Plus HP Service Instructions Manual page 14

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Dis-
played
messages
Err 4*
* See section "Monitoring the kV and mA values"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus HP
Mode of
Cause
operation
During Measured kV value
exposure deviates by more
than 5 kV from the
selected kV.
SPR8-220.061.03
Rev. 03
Display messages
Possible reasons and advice
The deviation can depend on the
adaptation.
•
Measure the kV curve at
measuring point "HTPEAK" (see
page 140**). Compare the
measured curve with the reference
curve (see page 141**).
For a large deviation:
•
Check the filament value (see
section "P07 - Read-out filament
values from battery backed RAM")
and compare it with the values in
the delivery protocol.
•
If the difference is large a new
adaptation is needed (see section
"P10 - Fast adaptation")
•
See also section "Error diagnosis
HT and single tank".
•
Check the connection K9 between
D1 and H1 (single tank) and the
connection between D1 and D13
(K8) (see page 140**)
Page 2 of 22
09.03 CS PS 24
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