Cooling System - Ametek FlarePro User Manual

Do not block
fan grill or fins
Figure 1-9.
Thermoelectric
Heating/Cooling
unit.
1-18 | FlarePro Process Mass Spectrometer

Cooling System

All FlarePros are fitted with an active heating/cooling system (Figure 1-9)
to regulate the internal temperature of the purged enclosure. The system
must function correctly to ensure proper and safe operation of the unit,
as well as to generate valid data. The FlarePro heating/cooling system is a
modular unit that can be replaced in the field. It is a thermoelectric-type
unit (TEC). This type of heating and cooling involves fewer moving
parts, and superior temperature control. It can handle ambient
temperatures from -10 °C to +35 °C (single-TEC) or -20 °C to +50 °C
(dual-TEC) but it is not designed to handle the heat load from direct
sunlight. Do not install the FlarePro anywhere that will expose it to
direct sunlight at any time of the day.
The TEC unit is wired with independent power from the rest of the
FlarePro. When the analyzer is powered on, the TEC controller allows
power to be applied to the TEC only, if the internal purged enclosure
temperature is outside the range of 12 °C to 40 °C. At this point, the rest
of the FlarePro's electrical systems will not be energized. The TEC will
then work to heat (or cool) the purged enclosure until the temperature is
within the working range. Once in the working range of 12 °C to 40 °C,
the rest of the electrical systems will be powered on. If the enclosure
temperature drifts out of the working range at any time during
operation, all electrical systems, except the TEC, will be shut down, and
the TEC will work to bring the temperature back into the proper range.
Allow adequate space around the TEC, and do not obstruct any
part of the unit with objects. Do not allow heavy dust or dirt to
accumulate on the surfaces of the TEC.