Operation Manual
VacuDAP 2002
2002BA01e.DOC / 22.07.2004 12 of 22
3.3.2 Turning the unit on
The unit is turned on and the measuring system started when the operating voltage is applied. The
following messages will appear on the display:
VACUDAP
VER:9.5x
VACUDAP
RADIOGRA
TEST
The software version (e. g. 9.5x)and measuring mode are displayed in this initialisation phase. In
the example, the mode is set to radiography (
RADIOGRA; see 3.3.8, Selection of measuring mode).
This phase is followed by the POWER-ON TEST (see 3.3.3, TEST function).
3.3.3 TEST function
The system test can be started in two ways:
• Turn on the unit (POWER-ON TEST).
• Press key
Reset
and keep it pressed for at least 2 seconds (max. 4 seconds, thereafter
abortion)
During the test, all system components including the ionization chamber are tested under measuring
conditions. A TEST
ACT
value is determined and compared with a TEST
NOM
value. The TEST
NOM
value
is ascertained in the course of the factory calibration, stored as a system parameter in the display unit,
and entered in the calibration certificate handed over to the customer.
During the TEST function, the following data will be displayed:
TEST
VACUDAP
11111111
22222222
:
WAIT 1s
yyyyxxxx
TEST OK
RESET
0
After a display test, the residual time of the TEST function (in seconds) is indicated (WAIT x s). The
total time required for the system test is dependent on the chamber type; up to 35 seconds are
possible.
At the end of the TEST function, the determined TEST
ACT
value (flashing, represented by xxxx) is
compared with the TEST
NOM
value (represented by yyyy). The system has passed the test (TEST
OK
) if the TEST
ACT
value lies within a given tolerance range. Upon completion of the automatic
RESET function, the VacuDAP 2002 is ready for measurements (MEASURE function).
To Next Page
Loading...