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termittent beeping will sound. One of the
following messages will appear intermit-
tently on the hotplates' displays *.
ó
* On models TR 640 and TT 640 the digit E
will not appear, since these models only have
three power indicators for the hotplates.
When normal power resumes, the beeping
and the display message will cease, while
the hotplates will remain disconnected and
the residual heat indicator H will appear in
the displays where the hotplates were in
use before the surge occurred. From this
point, the hob can be used again.
The touch control will detect such
power surges whenever the hob is con-
nected to the mains, even if it is not
being used at that particular time, so
the alarm above may be activated even
when the touch control is switched off.
Abnormally high power surges
can cause the control system to mal-
function (as with any type of electrical
appliance).
Ceramic hobs with controls
instructions
Each of the glass ceramic hob’s heating
elements is connected to a power regula-
tor that controls the operating and stoppa-
ge time of each of them (more or less
heat). (See fig. 10)
Each power regulator control knob has
numbering from “0” to “12”.
The hob with the integrated controls
(model VT CM) has the numbering on the
glass. (See fig. 11).
At postion “0” the hob does not operate, at
position “1” there is not much operating
time but a great deal of stoppage time.
With the remaining control knob positions,
the operating time increases while the
stoppage time decreases, until at position
“12” where operation is continuous, only
cutting off when the warm hotplate’s ther-
mostat cuts in to turn off the power when
the maximum permitted temperature is re-
ached.
DOUBLE CIRCUIT INSTRUCTIONS
The double circuit heating elements are
hotplates made up of two mutually inde-
pendent heating elements, and they are
controlled by a power regulator that allows
the smaller, inside ring to be turned on, or
both inside and outside at the same time.
fig. 11
fig. 10