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MICROWAVE TIMER
Timer switch contacts:
Timer motor:
The timer switch contacts are mechanically opened or
closed by turning the timer knob located on the timer
motor shaft.
The contacts (7)-(8)
control the current
path to the oven lamps and fan motor, etc.
The contacts (2)-(3)
control the current path to the
microwave timer, microwave lamp, vari-motor and power
transformer through the vari-switch.etc.
Timer is single speed type: cook time from 0 to 120
minutes may be selected with the timer. The dial is divided
in 5 minutes intervals. The timer motor is energized through
the cook switch, upper latch switch and convection timer
contacts @ - 0.
When the timer reaches the 0 point on
the scale, both timer contacts @ - @ and @ -0
open
the circuit to the fan motor, oven lamps, turntable motor,
convection timer, convection lamp, sheath heater, con-
vection motor and heater lamp, and the convection cook
cycle stops.
Timer bell:
The bell striker is mechanically driven by the timer motor
and rings once at the end of the microwave cook cycle.
Timer motor:
Timer is dual speed type: cook time from 0 to 60 minutes
may be selected with the timer.
Continental Europe:
Up to 5 minutes the dial is divided in 15 second inter-
vals. From 5 minutes to 10 minutes the dial is divided
in 30 second intervals. From 10 minutes to 60 minutes
the dial is marked off in 5 minute intervals.
' United Kingdom, Australia and South Africa:
Up to 10 minutes the dial is divided in 15 second. inter-
vals. From 10 minutes to 60 minutes the dial is marked
off in 5 minute intervals.
The timer motor is energized through the cook switch,
upper latch switch, convection timer contacts @ - @ and
microwave timer contacts (2)-(3).
When the timer reaches
the 0 point on the scale, both timer contracts (7)-(8)
and
(2)-(3)
open the circuit to the fan motor, oven lamps,
turntable motor, microwave timer, microwave lamp and
vari-motor, and the microwave cook cycle stops.
CdN-VECTION TIMER
Timer switch contacts:
The timer switch contacts are mechanically opened or
closed by turning the timer knob located on the timer
motor shaft.
The contacts @ - @ control the current
path to the oven lamps and fan motor, etc.
The contacts @ - @ opens and then contacts @ - @ is
closed. The contacts @ - @ control the current path to
the convection timer, convection lamp, sheath heater,
convection motor and heater lamp through the thermostat
when temperature is set 90" to 250°C.
Timer bell:
The bell striker is mechanically driven by the timer motor
and rings once at the end of the convection cook cycle.
Timer shaft:
Cams are inserted into the timer shaft. When the timer shaft
is wound up, these cams operate to close a damper so
that no hot air will be allowed to leak out of the oven
cavity.
When the timer reaches 0 point, the damper is
opened by the cam.
Figure 6 Convection Timer Desired Time Set
15
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