Siemens MOBILETT Plus HP Service Instructions Manual page 28

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Dis-
played
messages
USE 30
CAL 31
* See section "Monitoring the kV and mA values"
** Wiring diagram X037E
Tab. 1
MOBILETT Plus HP
Mode of
Cause
operation
Generator ON The portion of the
CMOS memory
where the customer
kV and mAs limit val-
ues are stored has
been erased.
Generator ON The voltage in the
backup battery on
D1 is below 2.8 V
SPR8-220.061.03
Rev. 03
Display messages
Possible reasons and advice
•
The pre-programmed values are
replaced with MOBILETT standard
values. See also "CAL 31".
•
Check the supply voltage on D1
(see page 110**).
•
Check that the voltage in the
backup battery is > 2.8 V and that
the battery jumper is connected
(see page 110**).
•
If the message appeared once, it
may indicate a tube arc which has
disturbed the system.
If the "USE 30" message occurs
repeatedly, the single tank must be
checked according to Error
diagnosis HT and single tank. If the
function of the single tank is OK
and "USE 30" occurs repeatedly,
replace D1.
If necessary, reinstall the customer
kV and mAs limit values (see sec-
tions "P14 - Number of kV steps and
upper kV limit and P15 - Upper mAs
limit").
•
The battery life has expired.
•
The battery jumper J1 on D1 is lost
or has a bad connection.
•
To change a battery (see section
"Replacing the backup battery").
Page 16 of 22
09.03 CS PS 24
Siemens AG
Medical Solutions