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UF V (E3) 10/2020 Page 41/119
Unless noted otherwise, the figure in this manual show the functional range, which is available for the user
with “Admin” authorization level
Note: When specifying the path to the respective function, the possibly required entry of a password is not
listed.
6. Start up
Following transport, wait at least 8 hours until start-up.
Check that the interior of the freezer is empty. Prior to starting a new freezer or if you do not know what the
freezer was last used for, for hygiene purposes you should clean and disinfect the interior (chap. 24).
After connecting the supply lines, turn on the chamber by the main power switch (4) (position 1). The lit
pilot lamp shows the chamber is ready for operation.
The controller shows normal display and controls the temperature to the last entered values.
6.1 Preset factory parameters
The chamber is supplied with the following preset parameters, which can be changed in the corresponding
menus:
Temperature set point -80 °C / -112 °F
Safety controller
Set point type “Limit”
-60 °C / -76 °F
The maximum permitted deviation from the temperature set point for tolerance
range alarm
+/- 5 K
Alarm delay time after opening the door
1 minute
Alarm delay time after leaving the tolerance range
(Following opening the door or chamber startup, the tolerance range alarm be-
comes valid only after the setpoint has been reached)
60 minutes
Password for “User” authorization
0 (no locking)
Password for “Admin” authorization
1
6.2 Behavior after turning on the chamber
During the equilibration phase of approx. 8 hours after turning on the chamber, undefined temperature
conditions occur within the chamber. During this phase, do not place any sample materials in the chamber
NOTICE
Danger of temperature fluctuation.
Destruction of samples.
Load the freezer only after equilibration of temperature.
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