Exposure Counter Display; Error History Display - Planmeca Proline EC pan Technical Manual

Chapter B - KEYBOARD FUNCTIONS & MODES

3.4 Exposure counter display

A
In the service mode it is possible to verify the amount of exposures taken. There are three
counters in the system, one counting the normal panoramic exposures, one counting the
cephalostatic exposures (only in Planmeca Proline EC Pan/Ceph X-ray unit) and one count-
ing every exposure (also the ones made in the service mode). Exposures that caused an
error and were interrupted are not counted. When one of the counters is wanted to be seen,
after the right key sequence the counter is displayed in the main display for a few seconds
after which the normal temperature display reappears. The key sequence always needs to be
started with the CTL-key to get the indicator light on and the second key determines, which
counter is displayed:
C
B
CHILD MODE
Because the main display has only four numbers on it and is therefore capable of showing
counts only up to 9999 a special method has been provided to be able to display counts up to
49 999. The two dots between the numbers indicate the amount of 10 000 to be added to the
displayed number as follows:
Lower dot on
Upper dot also on
Lower dot blinking
Upper dot also blinking
When 50 000 exposures has been taken the counter is cleared to zero and starts to count the
next 50 000.

3.5 Error history display

In order to make the equipment failure analysis easier an error history display has been pro-
vided. This error memory contains the 50 last errors occurred (not Er 00). The stack depth is
not necessarily 50, if less errors have occurred. In this case only the amount of errors that
have happened is displayed.
Press the CTL-key and the return key to enter this mode. The last error occurred (-01) is
shown. If no errors were memorized the displays appear blank. In this mode all the indicator
lights are undetermined and the numeric displays have a different function as is explained in
the following:
kV-DISPLAY
mA-DISPLAY
MAIN DISPLAY
EXPOSURE TIME DISPLAY
mm-DISPLAY
B-12 Planmeca Proline EC X-ray unit
C
CTL
Total exposure counter
Panoramic exposure counter
Cephalometric exposure counter
Add 10 000
Add 20 000
Add 30 000
Add 40 000
CTL
SERVICE MODE KEYBOARD FUNCTIONS
OR
B
READY
PRET
Day of month when error occurred
Month when error occurred
Hours and minutes when error occurred
Error code number that occurred
Running number of this error in the stack (-01 - -50)
OR
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