HEMACOOL
TM
Model HMC-MIL-1 Operations Manual August 2003
Energy Storage Technologies, Inc.
Dayton, Ohio 45459
13
disconnected long enough for the payload space to reach ambient temperature the
stabilization period must be repeated.
Following the 24-hour stabilization, the bottom row of the LCD display will display a
high/low temperature history. These alternate at 10-second intervals between the
maximum and minimum temperatures that have occurred in the most recent 7-day period.
This display reports how many days previously the maximum and minimum temperature
occurred (to the nearest ½ day). The maximum length of the stored history is one week,
after which the data is purged and the record begins again. The schematic on page 12
shows how the information is displayed for the stabilization period (Fig. 10).
Solar Option:
If solar power is the only available power source, it is recommended the solar panel be
allowed to charge the batteries for at least four (4) days before pressing the ON/OFF
switch (
Fig. 8
number
4
) to start the unit.
Change of Mode:
The temperature control point may be changed during operation. This is done by re-
setting the toggle switch (
Fig. 8
number
1
). Care must be taken, however, not to damage
stored blood or blood products. If the temperature is changed during operation, the
HemaCool™
must be allowed to equilibrate to the new temperature set point before it is
used to store or transport materials at the new temperature.
