2.3.6

2.3.6.8EVAC/AIR Control

Fig. 2.3-21 EVAC/AIR Control

Clicking the EVAC button initiates the evacuation of the specimen chamber. Similarly, clicking the AIR button causes the AIR processing of the specimen chamber.

The display window to the left of the EVAC button lights up when the specimen chamber is in the EVAC state; it blinks when the EVAC process is in progress; and in other cases it remains off. Similarly, the display window to the left of the AIR button lights up when the specimen chamber is in the AIR state; it blinks when the AIR processing is in progress; and it remains off in all other cases.

Status

EVAC

EVAC

AIR

AIR

Button

Window

Button

Window

 

 

 

 

 

 

EVAC fall sequence

Disabled

1

Disabled

1

 

 

 

 

 

EVAC rise sequence

Disabled

2

Disabled

2

 

 

 

 

 

EVAC processing on specimen

Disabled

Blinking

Enabled

Off

chamber

 

 

 

 

 

 

 

 

 

Specimen chamber in HVON/OFF

Disabled

Lit

Disabled

Off

operation in EVAC mode

 

 

 

 

 

 

 

 

 

Specimen chamber undergoing an

Disabled

Blinking

Enabled

Off

EVAC mode change in EVAC mode

 

 

 

 

 

 

 

 

 

Specimen chamber in EVAC mode,

Disabled

Blinking

Enabled

Off

and in LOW-EVAC mode the

 

3

 

 

vacuum level currently set does not

 

 

 

 

 

 

 

agree with the current vacuum level.

 

 

 

 

 

 

 

 

 

Specimen chamber in EVAC mode

Disabled

Lit

Enabled

Off

and in conditions other than the

 

 

 

 

above 3 items

 

 

 

 

 

 

 

 

 

Specimen chamber undergoing AIR

Enabled

Off

Disabled

Blinking

processing

 

 

 

 

 

 

 

 

 

Specimen chamber in AIR

Enabled

Off

Disabled

Lit

 

 

 

 

 

1: Both EVAC and AIR windows blink alternately.

2: The applicable window blinks, depending on the EVAC/AIR condition.

3: Only the EVAC window blinks in deep green.

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