Leica CM1510 – Cryostat
15
7.
Setup and operation
7.3.3 Control unit
Fig. 15.1
Fig. 15.2
The control unit has a 3-digit display, with additional
LEDs and three function keys.
LEDs
LED 1
indicates activation of cooling mode
LED 2
indicates activation of defrosting mode
LED 3
idle
Function keys
To program parameters
To increase the indicated value
To decrease the indicated value
During normal operation, the display indicates the ac-
tual temperature of the cryochamber.
Setting user definable parameters
User definable parameters can be accessed by press-
ing the P-button. Any programming field can be ac-
cessed for 30 seconds. After that time the display au-
tomatically resets to actual temperature indication.
Parameters can be modified via the arrow keys:
•
To adjust the set temperature, press 'P' and modify
the value via arrow key.
•
To set the defrost time, press 'P' again and modify
the value via arrow key. The first two digits are used
for hour indication, the last digit is used for minute
indication. Since there is just one digit for the minute
indication, the shown value has to be multiplied by
ten. The defrost time can be adjusted in 10 minute
steps.
Fig. 15.2
shows defrosting time set at 23:50
hours.
•
To set the real time, press 'P' for hour indication
and modify the value via arrow key. Press 'P' again
for minute indication and modify the value via ar-
row key.
•
When pressing 'P' once more the display shows
'00'. In this mode the entry of a code number is re-
quired. Since coded parameters are reserved for
service personnel only, press 'P' again to return to
set temperature indication, or wait 30 seconds un-
til the display resets to actual temperature indica-
tion.
•
To activate manual defrosting, press 'P' and the 'Ar-
row-up' key simultaneously. Indication switches
from LED 1 to LED 2.
•
To deactivate manual defrosting before time, press
'P' and the 'Arrow-up' key simultaneously. Indica-
tion switches from LED 2 to LED 1.
The duration of the defrost cycles is set to 8
minutes in the factory.
Illuminated LED 1 indicates that the unit is in
the cooling mode. Illuminated LED 2 indicates
that the unit is running a defrost cycle.
P
Summary of Contents for CM1510
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