Leica CM1950 用户手册
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38
Operating Manual V 1.1 – 05/2007
Setting the time
•
The clock time is set with the +/- buttons in the control panel marked
with the clock symbol.
To do so, set the current time using the "+" or "-" button below the small
clock symbol.
Pushing the "+" or "-" button for more than 1 sec. increases or decreases
the time continuously (auto-repeat function).
with the clock symbol.
To do so, set the current time using the "+" or "-" button below the small
clock symbol.
Pushing the "+" or "-" button for more than 1 sec. increases or decreases
the time continuously (auto-repeat function).
8.
Working with the Instrument
Programming the specimen temperature
•
Select the desired temperature of the specimen.
•
The specimen temperature is set and indicated on the control panel
marked with the specimen head symbol.
marked with the specimen head symbol.
The actual temperature is the standard indication.
Briefly pressing the "+" or "-" button displays the target temperature.
Set the desired value via the "+" / "-" buttons. Pushing the "+" or "-" button
for more than 1 sec. increases or decreases the specimen temperature
continuously.
for more than 1 sec. increases or decreases the specimen temperature
continuously.
The actual value will be indicated 5 seconds after finishing the program-
ming.
ming.
Specimen temperature - "Max-Cool" function
•
The snowflake button for the Max-Cool function is in the panel with the
specimen head symbol.
Pressing the button sets the lowest possible specimen head tem-
perature (-50 °C) as the target temperature. The instrument adjusts the
maximum low temperature of the specimen head, i.e. -50 °C.
specimen head symbol.
Pressing the button sets the lowest possible specimen head tem-
perature (-50 °C) as the target temperature. The instrument adjusts the
maximum low temperature of the specimen head, i.e. -50 °C.
•
Push the snowflake button again to stop the "Max-Cool" function.
The temperature adjusts to the value programmed prior to activating the
"Max-Cool"-function.
The temperature adjusts to the value programmed prior to activating the
"Max-Cool"-function.
•
Alternate flashing of "LL" and the actual temperature indicates activa-
tion of the Max-Cool function.
tion of the Max-Cool function.
Caution:
The specimen head and Peltier do not switch on until the chamber
temperature reaches -5 °C, in order to prevent icing.
The specimen head and Peltier do not switch on until the chamber
temperature reaches -5 °C, in order to prevent icing.