3M Sarns TCM II - Functional Description

25
Product Description
Functional Description
Main Unit
The main unit, which supplies water for both blood
heat exchangers and blankets, has five modes of
operation. The Standby mode allows temperature
readouts without the pump or heaters running. In
Cooldown mode (see Figure 9) the pump draws
through the ice water tank for maximum cooling. In
Rewarm mode (see Figure 10) the pump draws water
past the heaters for maximum warming to 42°C. In
Maintain mode (see Figures 11, 12 and 13) the opera-
tor selects a water temperature; water is drawn either
past the heaters or from the ice vrater tank to attain and
maintain the selected temperature. In Defrost mode
(see Figure 14) the pump draws water past the heater
and recirculates it through the large tank. To prevent
accidentally defrosn'ng the unit, Defrost mode must be
entered from Standby mode. In all five modes the
outlet water temperature appears on the digital display.
Small Large
Tank Tank
Blanket ll'l
Heater: Oi?
Pimp
Blanket Out
Figure 9: Cooldown Mode
Small Large
Tank Tank
Blanket In
Main Water in
Blanket Out
Figure 10: Fiewarm Mode
Small
Tank
Small
Tank
Small
Tank
25
0.1 ora
Heaters L'Jn
Figure 11: Maintain Mode
Blanket in
Blanke: Out
(Set Temperature Greater Than or
Equal to Water Temperature)
Large
Tank
_>
Figure 12: Maintain Mode
Blanket In
9
Blanket Out
(Set Temperature Slightly Less Than
.arge
Tank
Water Temperature)
Figure 13: Maintain Mode
Blanket in
Blanket Out
(Set Temperature Much Less Than
Lar 93
Tank
Water Temperature)
Heater
Manifold
___;. Heahls On Pump
Figure 14: Defrost Mode
Blanket Out
25