No Electrical Power; Residual Risk - Zhermack FURNACE DE 1 Manuel D'utilisation Et D'entretien

MAINTENANCE AND USE MANUAL
C. During the second stage temperature increase and during final holding:
- by pressing "+" (8) the display shows the second temperature setting;
- by pressing PROG. (6) the display shows the second stage temperature increase rate.
1. During delayed start (timer countdown).
If there is a power failure during the pre-start phase the timer will recommence its countdown from
the point at which it was interrupted once power has been restored.
2. During temperature increase (both stages).
If there is a power failure while the temperature is increasing the oven will recommence heating once
power has been restored.
3. During the holding time.
If there is a power failure during the temperature holding phase the following occurs:
- if the interruption is only brief and the firing chamber has not had time to cool the oven
recommences the holding phase from the point it had reached at the time of the power failure.
- if, instead, there has been a fall in temperature inside the chamber the oven will, once power is
restored, recommence heating to increase temperature and then restart the holding phase.
A beep informs the operator that power has been restored.
Residual risk is:
• a danger that cannot be completely eliminated through design and application of safety devices.
• a potential danger which cannot be highlighted.
DE series ovens reach very high temperatures and thus allow specific odontotechny materials to be
fired; the residual risks thus consist of:
• accidental contact (and/or caused by a safety system fault) with the materials or the equipment itself,
during and after the melting phase (risk of serious burns to limbs).
• inhalation of fumes or combustion gas caused by backflow from an incorrectly positioned aspiration
tube.
• work carried out on the equipment interior by unauthorised personnel.
The DE series oven is a equipment that could potentially cause an explosion or fire
where users fails to observe the instructions given in this manual.
Should you have any doubts or queries please do not hesitate to get in touch with the
Manufacturer or an Authorised Servicing Centre.
The above-mentioned dangers are indicated by special labels attached to the equipment, as described
in sub-section 3.5.1.
FURNACE DE 1 / DE 2 / DE 3
EN

NO ELECTRICAL POWER

RESIDUAL RISK

7.7
7.8
139 of 260