Page 43 of 58 Pages
9 DOOR SAFETY SYSTEM
The door opening is ensured by two means:
1. The closing device prevents an incidental opening of the door.
2. A pull-type solenoid that in inactivated position locks the door and must be
electrically powered to release the locking and enable the opening of the door.
9.1 Solenoid locking device
The solenoid locks the door in the following situations:
1. When the control unit is not powered.
2. If power failed or has been turned off while the autoclave is in
operation, even if power has been restored.
3. If operation was stopped before completion of the cycle as a result of
a failure or a manual stop.
4. When the temperature inside the autoclave chamber is higher than the
“end of cycle” temperature, preset by the operator; the opening of the
door is possible only when the temperature has dropped below preset
value.
For cases described at points 2 and 3, press START/STOP key to cancel
the door locking at the end of the operation.
If, for any reason, the locking mechanism does not open, call for Tuttnauer
service.
Warning!
Do not use force to open the door
.
9.2 Door Safety System for models 5050, 5075
9.2.1 Door Components
A circular frame with a “C” cross section is welded on the
topside of the vessel. When the door is closed it lays on the
“bottom leg” of the frame.
The door plate mechanism consist the following:
a. A centric shaft welded to the doorplate (2).
b. An arm housing (3) that holds the 8 arms and is able to
swivel on a thrust bearing. The housing is secured.
c. Bakelite handle (4), which is operated by the operator,
is installed directly on the housing.
d. 8 arms (5), which are held in the arm housing in such a
way that they, are rotatable. These arms are freely
located in a guide (6), which enable them to move in an
angular movement due to the rotation of the arm holder.
Note: the drawing provided below describes the door in the
“locked” position: The handle is positioned in
10:00-4:00 (hour) angle, and the arms are pushed
radially into the circular frame.
The “open” position is when the handle is located in
7:00-1:00 (hour) angle. In this position the arms are
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