Siemens MOBILETT Plus Service Instructions Manual page 12

2 - 2
Dis-
played
messages
Err 4*
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus / - E/ - M
Mode of
Cause
operation
During Measured kV value
exposure deviates more than
5 kV from selected
kV.
SPR8-215.898.01
Rev. 05
Display messages
Possible reason
The deviation can depend on the
adaptation.
•
Measure the kV curve at
measuring point "HTPEAK", see
page 140**. Compare 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
01.02 SPS-UD
Siemens-Elema AB
Solna, Sweden