3M Sarns TCM II - Main Unit Modes and Displays

7
Controls and Displays
Main Unit (Continued)
Modes are started by depressing the mode switch; modes are stopped by selecting another mode. The Defrost
mode is unique in that it may be entered only from the Standby mode and is stopped by returning to the Standby
mode. All select switches must be depressed for at least 1/2 second to register. A green LED lights to indicate
which functions are selected.
E
-
STANDBY CDDLDOWN
|
ICE MAKING
GRADIENT
- -
A6“ _\10’
CAR DIOPLEGIA
H20 ‘C
H.
Figure 2: Front Panel
ICE NIAKING Indicator Lamp fights when the ice
making fimction is active.
Water Temperature Display shows the output water
temperature
Cardioplegia Water Switch allows momentary display
of the cardiopleg'ia outlet water temperature on the Water
Temperature display.
STANDBY (Mode) Switch selects a neutral mode in
which temperatures may read but valves, pumps, and
heaters are not operating (except during startup when the
valves open to allow internal priming).
COOLDOWN (Mode) Switch opens valves to circulate
cold Water from the large tank.
MAINTAIN (Mode) Switch begins warming water or
adding cold Water to attain and maintain an operator—
selected temperature.
Maintain Temperature Display shows the selected
maintain temperature. During startup, this display shows
the software version and then 25°C.
MAINTAIN TEMPERATURE Switches raise or lower
the maintain temperature setting within a range of
O“-42"C.
REWARM (M ode) Switch activates the heaters to warm
water at a maximum rate up to 42°C and circulates the
warm water.
J. Gradient Switch limits the water temperature in Maintain
or Rewarrn modes to no more than 6°C or 10°C above the
temperature read by Probe G. This switch is designed for
use with a venous temperature probe. When the Gradient
switch is inactive, the maximum rewarrn temperature is
automatically 42°C.
K. DEFROST Mode) Switch circulates warm water
through the large tank until the water reaches 20°C; then
the unit automatically reverts to Standby mode.
The following alarms have specific warning indications: a red
LED lights to indicate the specific alarm condition and, except
for the Low Flow to Blanket warning, a two-second buzzer
sounds.
- L. H10 > 42°C LED lights to warn that the water tempera—
ture is at or above 425°C. The heaters are automatically
turned off. The light and bumer warnings will continue
until the temperature is below 42°C.
M. Pump Not Primed LED lights to warn that the main
pump is not primed. The light and buzzer warnings will
continue (or reoccur) until the pump is primed and
restarted by pressing Cooldown, Maintain, Rewarm or
Defrost.
N. Low Flow to Blanket LED lights to warn that the water
flow for the blanket is low.
0. Service LED lights to warn that the temperature display
and temperature control m be malfunctioning.