Siemens MOBILETT Plus - Page 12

MOBILETT Plus / - E/ - M SPR8-215.898.01 Page 2 of 22 Siemens-Elema AB
Rev. 05 01.02 SPS-UD Solna, Sweden
2 - 2 Display messages
Err 4* During
exposure
Measured kV value
deviates more than
5 kV from selected
kV.
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**
Dis-
played
messages
Mode of
operation
Cause Possible reason
* See section "Monitoring the kV- and mA-controls"
** Wiring diagram X037E
Tab. 1