Again, without this warning, the chiller or your spectrometer can be damaged when the coolant level drops because of evaporative losses or leaks in your flow path. An audible alarm notifies the operator that a fault condition has occurred. This is especially helpful when the chiller is remotely located from the spectrometer operator. Fault shut-off and relay contacts manage the chiller or equipment when there is a problem. Relay contacts enable you to automatically power down your spectrometer in the case of a chiller fault.
Filters are important to maintain the chiller s performance.
Coolant filters remove particulates that can damage your equipment and the chiller s pump. Air filters prevent dust and dirt from accumulating on the condenser, which would reduce the chiller s cooling capacity. Figure 3 . Close-up of chiller controller. Hot gas bypass.