Cole Parmer PolyStat CC1080, Manual

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2.1 Safety features
The comprehensive safety system is designed on the “single fault” (EN
61010) concept. This assumes that two separate faults do not occur simul-
taneously. This system therefore offers protection against
one (single) fault.
This one fault will effectively occur automatically if you:
• do not read this manual
• do not correctly set the excess temperature protection, i.e. your safety
reserves are already used.
Faults can include:
Fault in the temperature control unit:
Excess temperature leading to possible fire danger
Leakage in the liquid circuit or Evaporation of heat transfer liquid:
Low liquid level leading to possible fire danger, destruction of the
polyacrylic bath vessel
Pump blocked or Great portion of antifreeze in the bath liquid:
Motor overheating leading to possible fire danger
Also:
Excess temperature protection level not correctly set:
Possible fire danger
If a safety feature is activated:
• Fault Identification S ystem (FIS) indicates the fault
• the safety–relevant components of the heating unit (heating element
and motor) are switched off immediately, i.e. the safety circuit transfers the
unit to a stable, safe condition
• the heat transfer liquid in the heating unit gradually adjusts to ambient
temperature.
For units with running compressor cooling, the cooling remains func-
tional and cools the heat transfer liquid to the lowest reachable tem-
perature.
2.2 Applications
The unit is designed for temperature control of closed temperature control
circuits such as reactors and heat exchangers.
Separate open vessels cannot be temperature controlled because the unit is
only equipped with a pressure pump.