Perma Pure BALDWIN 225CE, Инструкция по эксплуатации

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Section D: Installation 8
D: I
NSTALLATION
The Model 225 thermoelectric sample cooler should be installed away from heat
sources in a well ventilated area of an instrument rack or enclosure.
REMEMBER,
the Model 225 can only control to 71
°
F DIFFERENTIAL from ambient temperature.
Thus, at an output temperature control of 41
°
F, the maximum ambient temperature is
104
°
F, above which cooling control is lost. When this differential is exceeded, the
controller will go full-on, with the cooling capacity floating in relation to the ambient
temperature above 104
°
F. No damage will occur to the cooler, however, the output
dew point will also float in relation to the ambient temperature. The more stable the
ambient temperature environment around the Model 225, the better the output dew
point stability.
Sample tubing connections to the Model 225 depend on the heat exchanger material
of construction. A cooler with stainless steel heat exchangers uses a stainless steel
inlet fitting on the Channel 1 heat exchanger. All other inlets and outlets are Kynar
®
standard compression type tube fittings with Teflon
®
ferrules. PVDF (Kynar
®
) heat
exchangers use all Kynar
®
standard compression type tube fittings with Teflon
®
ferrules. Baldwin cannot warrantee against damage to the Peltier elements or heat
exchangers if our supplied Kynar
®
tube fittings are not used.
The inlet and outlet tubing of all metal or Kynar
®
heat exchangers is 1/4" NPT; the
user should always use the compression type fittings provided for that purpose by
the factory. The inlet of the Channel 1 heat exchanger uses a 3/8” tube x ¼” MNPT,
tube connector fitting to accommodate most standard 3/8” sample lines.
The condensate drain connections are Kynar
®
elbows, 3/8” MNPT x 1/4” barbed
tube fittings. An automatic condensate drain, Baldwin Model 3KPB-003 dual-head
peristaltic drain pump is recommended for water removal. This pump uses size 17
tubing.
CAUTION: Do no reduce the size of the condensate tubing since doing so restricts
water flow resulting in water slip (moisture carryover) in the sample.
CAUTION: If using a stainless steel sample line, place 2 inches of Teflon
®
tubing in
between the exchanger inlet fitting and the heated line. This prevents the sample
cooler from heat sinking the incoming heated line, which adds undue load to the
cooler.
.