Leica EM FC7, Operating Manual

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Page 36 Operating Manual Leica EM FC7 01/10
1: LED chamber illumination. Touch to switch on or off. When activated, brightness
can be controlled with + - buttons.
2: Integrated ioniser control.
Touch to switch on or off if EM Crion with discharge mode only is used. When
activated, intensity can be controlled with + - buttons.
3: Three individual readings for the actual temperature of specimen, knife and gas.
Only the actual and not the set temperatures are shown.
Touch one, two or all three buttons to activate setting mode. When activated, the
temperatures can be set.
A number pad appears on the screen.
The desired temperature can be keyed in
and must be confirmed with „OK“.
If only one button was activated (e.g. knife), only the temperature of this button (in
this case the knife) will be set. If all three buttons were activated, all three will be set
together.
4: Store function. Touch to activate storing mode, followed by one of the four
memory fields (5). The set temperatures of specimen, knife and gas are now stored
in the desired memory field.
5: Memory fields. Touch to activate the pre stored values.
6: Pump. Touch to switch on or off pump (e.g. for refilling the Dewar it may be
necessary to warm up the LN
2
hose until it is flexible enough to me moved).
7: LN
2
level indicator. Indication of the filling status of the Dewar. An acoustic
warning signal will sound if the Dewar is almost empty. Approx. 1 h working time is
left.
The acoustic signal can be switched off by touching the Dewar symbol.
8: Start: Touch to activate cooling of the chamber to the set temperature.
9: Heat: Touch to activate automatic bake out of the chamber. The automatic safe
guard will ask you to touch the button for more then 1 second to prevent activation
by accident. Due to the automatic bake out the controller can be switched off and
the bake out process will continue to heat up the chamber to about 110°C and stops
automatically at room temperature thereafter.