Service manual

844,833,899, and the 800 overpressure alarm.
29
CRITIKON,
INC.
SECTION 5. INSTALLATION AND OPERATION
AUTO MODE
Continued
2. Preset cycle time is three (3) minutes. To change the cycle time, press
and hold the CYCLE SET switch until the desired cycle time appears in
the display; then release the switch. The display will periodically flash
the amount of time which has expired since the last data update. You
may initiate a determination at any time during the wait period by
pressing the START switch. This action resets the wait cycle.
PRECAUTION
The Monitor should be set to cycle only as frequently as is
necessary to ensure adequate patient monitoring.
3. Press CANCEL to stop a determination and deflate cuff, or to cancel
overpressure, excess time and patient alarm indicators.
ALARM INDICATIONS
AND INTERPRETATION
All alarm indications are accompanied by an audio signal unless the
SILENCE switch is in the ON state. In the SILENCE (ON) state, an alarm
condition (other than a microprocessor system failure) is indicated by the
flashing yellow LED indicator.
A microprocessor system failure will generate a continuous, high level audio
alarm regardless of the setting of the SILENCE switch.
There are two categories of alarms, patient alarms and system alarms;
these are described in the paragraphs following.
PATIENT ALARMS
SYSTEM ALARMS
Patient alarms include those alarms issued when the patient’s systolic
pressure, mean arterial pressure, pulse rate, or diastolic pressure is outside
the set limits. Whenever one of these conditions occurs, the associated
display (SYSTOLIC, MAP PULSE, or DIASTOLIC) will flash the determined
value and an audio alarm will be issued.
Pressing the SILENCE (ON/OFF) switch to ON (yellow LED lit) silences the
audio alarm, but the alarming parameter display and SILENCE LED indicator
will continue to flash at the same rate.
Pressing the CANCEL switch cancels all patient alarm indications.
Whenever the monitor detects a patient alarm condition in auto mode, the
monitor activates the alarms, waits 15 seconds and then begins one more
determination (unless CANCEL is pressed). If the alarm condition persists,
no further determinations are made until the cycle time elapses.
There are a number of system level alarms to alert the operator to certain
abnormal conditions or internal system failures. See Table 5-3, System
Alarms Summary Table. Alarm conditions and remedies are discussed in
this section, Troubleshooting.
Pressing the CANCEL switch cancels all excess time system alarms, 855,