Oven CR-5000G*
page 2
7. Controller setting:
The main four-digit display on the electronic temperature controller "K 48" indicates
permanently the real temperature in the oven.
The controller has two levels of programming.
Level 1 - working temperature setting: By pressing twice shortly the key P, the actual set
value ( SP1 ) appears. During the time when this value is displayed, the value can be
increased or decreased by pressing the keys UP or DOWN. Five seconds after having
released the keys,, the display returns back to its normal indication mode (the factory setting
is at 175°C).
Level 2 allows setting a number of parameters, which have been pre-set in the factory. Their
codes appear when pressing the key P for more than 3 seconds.
WARNING ! – It is recommended not to modify their setting, at risk to make the
controller unusable! (In case of particular problems, ask for detailed Instructions).
Left and right on the front panel of the controller are also LEDs, indicating the ON or OFF
position of the outputs (OUTPUT 1 only is used) and a shift index with 3 LEDs, working in
the following way:
Red LED
◄
flashing: Process value lower than 5 units of Set Point value
Red LED
◄
ON: Process value lower within 5 units in respect of Set Point value Green
LED
■
ON: Process value equal to Set Point value
Red LED
►
ON: Process value upper within 5 units in respect of Set Point value
Red LED
►
flashing: Process value upper within 5 units of Set Point value
Note : When setting the working temperature, consider that it can be slightly different from
that, indicated on the controller’s display.
E.g. : the internal temperature inside 6 mm thick polypropyilene plates, obtained after at least
20 minutes of stabilisation (starting from the having moment when the pre-selected value
has been reached) is about 5° lower than displayed. When using other thicknesses of
material, the stabilisation period duration and the temperature lag have to be adjusted in
consequence.
Uniformity over the working area: The temperature at the working level around 170° i s
uniformly distributed within limits ±1° on an area, limited to the distance of 100 mm from the
side and back walls, but 150 mm from the door.
