Flat Battery - Planmeca Proline CC Technical Manual

5

FLAT BATTERY

CAUTION
Technical Manual
The equipment has two different types of parameter memories. The most critical parameters that
are seldom changed are stored into an EEPROM-type memory that is non volatile but the
amount of changes made is restricted to about 10'000 times per single data.
The other parameters that are not fatal if lost and which are altered more often are stored into a
battery backup RAM-type memory on the keyboard processor board. This information is lost and
substituted with minimum or less harmful ones if the battery goes flat.
When the equipment is powered on the battery is charged. A completely flat battery will be fully
charged within about two hours. If the equipment is never switched on or just shortly after long
intervals as may be the case when stock keeping it, the battery will last at least two months.
When the equipment is turned on with a flat battery the clock display and mm display are blinking
all zeroes. In the following is explained, which information is lost and with which values it is sub-
stituted.
LOST INFORMATION
Calendar clock
Layer position
Exposure counters
kV value last used
mA value last used
Cephalostatic exposure time last used
Cephalostatic soft tissue wedge position
Up/down motor on one end limit
Automatic return mode
kV, mA pair select mode (AUTO)
Temple rests open/closed
Panoramic/Cephalostatic version
After detecting this kind of a situation the substituted information must be corrected by resetting
the above listed parameters to actual ones.
There are two parameters that must be corrected in order to gain the normal operation!
If the equipment was a cephalostatic one it must be once again programmed to be cephalostatic
as it is explained in the chapter "Panoramic/cephalostatic setup" on page B-15.
The correct place of the layer positioning motor must be learned into the system by driving the
motor in service mode twice past its reference sensor till the mm display ceases blinking. Take
care not to drive the motor into the mechanical ends that may cause damage.
Chapter
SUBSTITUTED INFORMATION
All zeroes
00
All zeroes
60 kV
04 mA
0.2 sec (cephalostatic models only)
Position 00 (cephalostatic models only)
Assumed to be not on an end position if not on
sensor
Automatic return off
Individual settings
Assumed to be open if not on sensor
Panoramic
Planmeca Proline CC panoramic x-ray G-7
G - TROUBLESHOOTING