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VI. Operation of the electronic control panel
Electronic
temperature
controller
works on the principle of a proportional-
integral-differential calculus. Its aim is to
maintain the initial value at the given level
- the setpoint. Setting the temperature is
performed by setting the digits in the row
of units, tens and hundreds, respectively.
To set the temperature press the button
“
/AT”. The flashing digit field, on the value
screen, means entering the temperature
change mode.
To change the digit in the flashing place,
press the “
” button to increase or “
” to
decrease the value. Press “
/AT” to go to
the next row of digits. To accept / end the
temperature change, press the "SET" button.
Auto-tuning can be turned on / off by
holding the “
/AT” button for 3 seconds.
Successful switching on is indicated by the
"AT" diode.
We use auto-tuning when ambient
conditions have changed since the last use
(e.g. temperature difference).
CAUTION! The "SET" button (1)
changes view on the display (6) from the
set temperature to the burner activation
frequency in percent (e.g. value "50" means
that the burner is on for the same time as it
is off).
FRONT
1
2
3
4
1. “SET” - confirmation button
2. “
/AT” - setting / auto- tuning
3. “
” - value increase / change button
4. “
” - value reduction / change button
5. “PV” - current temperature in the chamber
6. “SV” - set temperature / frequency of the
burner activation.
CONTROLLER DISPLAY
6
5
SET
/AT
To maintain a consistent temperature, it is recommended to use the "Auto Tuning" mode
before each use. The device tunes the frequency of switching on the heater depending on
atmospheric conditions and amount of products inside the chamber..
"Auto Tuning" mode consists in reaching set temperature twice by investigating the inertia
of the chamber heating dependent on changing conditions.
When the set temperature is reached for the first time, it can be exceeded by 10 - 15%.
After the AT diode goes out, the temperature should oscillate within 1 - 2 degrees from the
set value.
After switching on, the indicated temperature may be lower than the actual temperature,
this is due to sensor calibration. This phenomenon should take from 5 to 10 minutes.
