The Digital timer controls the operation of the Ultrasonic cleaning machine and
its options. There are three sections of control; Main Power, Timer, Heat.
The Main power on / off switch: Located on the rear panel of the machine near
the line cord/power cord and fuse holder. This switch controls the main power
to the unit. When this switch is in the on position it is illuminated and the yellow
standby light, on the front panel, is lit (item 2).
Timer Section: The timer section controls the Ultrasonic operation of the
machine. There are five different selectable predefined timer settings (6, 12,
20, 30, 60 minutes). The timer set button (Item 1) is in the center/centre of the
time selection indicator lights (Item 3) just below the yellow standby indicator
light (Item 2).
Pressing the timer button once, when the unit is in standby mode will
start the ultrasonic cleaner and select an operating time of 6 minutes. If
the Timer button is pressed again a second time then the 12 minute
indicator will light and the unit will then run for 12 minutes and turn off
when done. If the timer button is pressed while the machine is operating
the next time interval is selected and the machine will continue to
operate until the end of this preset time. Pressing the timer button will
increment the time interval from 6 to 12 to 30 to 60 and then to Standby
(off). The time indicator light remains lit until the end of the cycle.
Optional Heater Section: The heater section has the Heater Push Button
(Item 4) and a Red indicator light (Item 5). The light is active when the heater
circuit is energized. The Heat remains on until the button is pressed again and
the indicator light goes off. If the unit has not had any buttons pressed for 2
hours the heat turns off as a safety precaution. Heat should not be left on
unattended. The operator should not rely on this automatic feature to turn the
heat function off automatically - this feature is for safety only.
The main power switch is intended to be turned off when the machine is not
in use. None of the Digital timer functions will work if the main power switch is
in the off position.
Digital Timer
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