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It may happen that the unit couldn't reach the set temperature within the set time because
the reaching time was too short. In such situation the reaching time will be exceeded and
the segment's time countdown will start when the set temperature is reached.
Time:
The program without a ramp – the unit starts counting down the segment time when the program is started. Regardless of whether
the temperature has been reached.
The program with a ramp – the unit first counts down the ramp time and after its expiry it proceeds to the countdown of
the segment time. Regardless of whether the temperature has been reached.
It may happen that the time of reaching was too short and the unit failed to reach the set
temperature within the set time. Then the countdown of the segment time will start before reaching
the set temperature. Thus, the actual time of unit stay in the set temperature will be shortened.
The unit is equipped with cartridge protection – over temperature protection class 3.1, which is realized on the basis of
the temperature value measured by an independent temperature sensor, the so-called security sensor.
The main aim of the cartridge protection is to protect against uncontrolled rise in temperature. At the moment of activation,
the relay disconnects the heating power supply.
Temperature protection class 3.1 – when the temperature drops below the set protection value, the power turns on automatically
and after rising the temperature above the set protection value, the power turns off automatically.
Figure 17 - Confirmation of protection alarm class 3.1
The temperature set in the segment cannot be higher than the upper protection temperature less 2°C, e.g. the upper protection
temperature: 39°C the maximum temperature set in the segment that can be given is 37
More information see
12. Temperature
Starting the program
You can start the program in two ways:
The first way
•
Press the icon
•
Then select the program you want to activate and press „Start" button
28
vwr.com I Instruction manual VWR
Protection class
protection.
„programs" in main menu
®
CO
incubator
2
(Figure
18).
o
C.
(Figure
19).
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