Cole Parmer PolyStat CC1080, Руководство пользователя

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10. Excess Temperature Protection
If one of the safety devices is triggered:
• The fault cause is shown in display 6 , see section 12 for additional
information.
• the safety circuit transfers the unit to a stable, safe condition and all
voltage conducting unit components (the heating element and pump mo-
tor) are immediately switched off.
NOTE: The fault cause must be identified and remedied.
After the fault has been eliminated the unit can be restarted by pressing
the Reset key
2 .
10.1 Excess temperature protection dial
The excess temperature cutoff is adjusted using the excess temperature
setting dial
13 .
The dial offers protection against dangers caused by an uncontrolled heat-
ing of the heat transfer liquid above the desired set point temperature.
NOTE: Proper protection can only be guaranteed if the cutoff point is cor-
rectly set (see 10.1.1).
There are two main reasons for having a correct setting:
Safety (primary importance):
Protection against ignition of the heat transfer liquid.
The cutoff point must be set at least 25°C below the fire point of the bath
liquid used.
Protection of your application (secondary importance):
Additional
protection, e.g. of a biological sample. The cutoff point should
be set as close as possible to the desired temperature value.
13
6
2
13
7