Atag MC4111L - Page 23

MC4111L / MAG 690
Technische documentatie
Designation Function Characteristics
Thermal Activator When Thermal activator is on, the shutter
is open.
• 220/240V~
• 5 W
• 830 Ω
• Head in Teflon
Panel
assembly principle is the same as EURO
oven
Panel decor fixed with clips
Panel support fixed with two screws
component fixed with two screws
Be careful: A spring is fixed between
support and panel, it allows feedback
effect. It prevents the electromagnetic
perturbations feedback in
the oven
panel.
Magnetron and its thermostat The magnetron is fixed to the cavity by a
¼ of round system. It gives an easy
assembly and dismantling.
Magnetron includes a thermostat which
protects from overheating.
Magnetron
• 1000W
• 2450 Mhz
Thermal security
• Cut : 110°C for Combi
• Cut : 90°C for Solo
Voltage doubler The voltage doubler transforms the
2100V~ alternative voltage into a
negative pulsated current of about
4000V~.
It is made up of two components :
• A capacitor which stores electrical
energy for half a period.
• A high voltage diode which,
together with the capacitor, enables the
alternative high voltage to be converted
into negative voltage.
No AK protector
Diode
• Voltage lowering : 10 V max
Capacitor
• 1,05 µF
• 2100 V∼
Transformer One primary coil, two secondary coils :
• 3,3V~ at LV to ensure the cathode
filament heating.
• 2100V~ at HV is applied to the
voltage doubler and the magnetron
anode. One end of the coil and the
magnetron are connected to the oven
earth.
The primary coil includes an
overheating security thermostat.
Primary coil
• 230/240 V∼
• 1,5 Ω
Secondary HV
• 2100 V∼
• 75 Ω
Secondary LV
• 3,3 V∼
• 0,5 Ω