Excell MCDSe series
Rel. 1
alsa
apparecchi medicali srl
4
case of the cylinder pressure is not sufficient or it is too high, and finally he can see the real gas flow that
has been supplied.
PRELIMINARY
In order to avoid the use of the unit in case of failure, at the moment of the switching on a selftest phase
verifies all the main parameters for the use in total safety; only if there is no damage and the calibration is
adequate, the unit finishes its selftest positively, allowing the operator to use the machine. By the contrary,
if some problems are detected, it will not be possible to activate the equipment: on the display will appear
an error message about the test that has given a negative result during the selftest phase.
As the normal use mode does not allow the execution of tests in case of anomaly, it has been introduced
the possibility to switch the unit in the
calibration
mode: the latter, which is selectable through a particular
combination of buttons, avoids the tests that, in case of negative results, would block the functioning of the
equipment. In this way, the operators can verify some diagnostic parameters, and thanks to them they can
determine the section where the failure has occurred. Moreover, some parameters are calibrated by the
software first, and then memorized in an E
2
PROM placed inside the unit.
The access to the
calibration
mode is possible in two ways:
1) by switching the unit on, and keeping the hidden calibration button pressed;
2) with the unit already on, by pressing at the same time the buttons of calibration, bipolar coagulation
mode and the monopolar coagulation output level increase (this mode cannot be used in case of a
failure detected at the switching on, as the identification of a problem interrupts the functioning of
the keyboard; so, it is useful in case of change of the calibration without failure).
BIPOLAR
ARGON
SOFT
SPRAY
FULG FORCED
PIN POINT CONTACT
PURE
BLEND
SEAL HC
MICRO AUTO
MACRO
MICRO CV
MICRO HC
AN-2
ED-2
5
10
=15
=1
MONOPOLAR
BIPOLAR
BIP-1
BIP-2
CAL
In the
calibration
mode, the displays show values in hexadecimal codes, which are different from those
visualized during the normal use; in order to perform any type of calibration, it is necessary to press the
button CAL. At this point, the monopolar section displays start blinking, the light for the setting mode gives a
signal and the bipolar section displays remain switched off. In the monopolar Cut section, the operator sets
the type of test he wants to perform; if the test requires additional parameters, these are selected into the
monopolar Coagulation section. For example, if the operator wants to verify the reading of the A/D inputs
(one of the internal parameters), he will set 01 on the display of the Cut (i.e. reading of the A/D converters)
and a number on the display of the Coagulation related to the input to be read (i.e.: 04 means that the
operator wants to read the A/D input no. 4). During the activation, the result will be visualized on the
monopolar Cut display of the unit; it will be always the monopolar Cut display to be used, independently of
the selected function (example: the reading of a A/D converter that concerns one mode of the bipolar
Coagulation will be set, if necessary, on the interested function, but it will be always visualized on the
monopolar Cut display).
Once selected what has to be calibrated, if further settings about the modality to test are not necessary, it is
sufficient to activate the unit into the function that needs the calibration: automatically, the equipment goes