5-3
Component Identification Operator Manual P129390-106
• Sterilizer Key Switch
Refer to Figure 5-2.
Key Switch Function: The key switch has two positions – 0 (Off)
and 1 (On). When power is supplied to sterilizer, the key should
be in the 0 (Off) position. When the key is moved to 1 (On)
position, 24V dc power is applied to control and power-up
sequence begins. (Power up process requires five to ten
minutes.) The key switch should remain in 1 (On) position at all
times, unless it is necessary to power down the sterilizer.
NOTE: If sterilizer will not be used for an extended period of time,
place the sterilizer in Standby mode. Standby is accessed from
control screen (refer to Figure 5-3).
Important: If a complete power down is required, the key switch
can be moved to the 0 (Off) position. The system then begins a
controlled power-down sequence of the control’s operating
system.
Summary of key switch functions
• 0 (Off) – If a complete reboot is ever required, turning the key
switch to 0 (Off) causes sterilizer to completely power down after
approximately two minutes. A two-minute pop-up timer appears
on the main control screen (see Figure Figure 5-2), the sterilizer
executes a controlled shutdown of the operating system at the
end of the two-minute countdown and the display goes blank.
(The complete process requires approximately ten minutes.)
• 1 (On) – Turning switch to 1 (On) causes machine to power up
control’s operating system normally (through a normal boot up
process).
• Loss of Power: If power is disconnected or lost while sterilizer is
in cycle – after two minutes, control stores all cycle values
required and automatically initiates a controlled shutdown. When
power is restored, it is necessary to turn the keyswitch to the 0
(Off) position and wait for the display to go blank (approximately
10 minutes). The keyswitch must be returned to the 1 (On)
position to initiate a normal power up sequence.
NOTE: Refer to S
ECTION 5.6.2. SYSTEM SHUTDOWN BUTTON, PAGE
5-8, for further shutdown options.
Figure 5-2. Sterilizer Key Switch
and Countdown to Shutdown
Timer
Key Switch
Off
Position
On
Position
Notification of Impending Shutdown as a
Two-Minute Countdown Timer Appears on
the Screen When Key Switch is Set to Off.
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