Alarms; Low Water Level (Medium Priority); Low Ice (Low Priority) - CardioQuip MCH-1000 Operators & Service Manual

ALARMS

The MCH incorporates various alarms, enabling auditory monitoring of the system and
alerting the operator to any conditions that require the operator's attention. A low priority
alarm alerts the operator to a condition that requires attention but poses minimal risk to the
patient. A medium priority alarm requires prompt operator attention to avoid potential
reversible injury to the patient. A high priority alarm indicates an immediate patient safety
issue.

Low Water Level (medium priority)

If the water level in the MCH water tank falls below a safe operating level,
the MCH halts its operation, the Low Water Level screen appears, and the
alarm sounds a three-beep sequence every 8 seconds. To silence the Low
Water Level alarm, add sterile or 0.22-micron filtered water to the tank to a
depth of at least 6 in (15 mm) or turn off the mains power switch on the
front of the MCH. The audible alarm may be silenced for 60 seconds by
touching the Audio Silence button at the bottom left corner of the screen.

Low Ice (low priority)

If the MCH is unable to cool to the set temperature within 40 seconds due
to insufficient cold water in the tank, the Low Ice alarm sounds a short
ICE
double-beep alarm every 20 seconds. This alarm is accompanied on the
RUN screen by the indicator icon shown at left. Touching this icon will
silence the alarm for 60 seconds. The Low Ice audible alarm may be
disabled on the SETTINGS screen.
WARNING: Only use ice made with sterile or 0.22-micron filtered water.
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