Ohmeda Ohio 2000 IWS Series, Operation And Maintenance Manual

Page: 30 / 80

3-6
6600-0255-000 12/20/00
3/Operation
3-6
Check Patient Alarm:
1. Manual Mode: The check patient alarm activates in the manual mode of operation
when the heater has been energized at a power level greater than 25% for 12
minutes. The alternating single tone alarm is activated for this condition. Pressing
the alarm silence switch silences this alarm and resets the timer for another 12
minutes of operation. If this alarm is not silenced within 3 minutes of the check
patient alarm occurring, an alternating two tone alarm is sounded and the heater is
deactivated until the alarm silence switch is pressed.
2. Servo Mode: The check patient alarm activates in the servo mode of operation if the
heater has been at the 100% power level for 12 continuous minutes. The alternating
single tone alarm is activated for this alarm. Pressing the alarm silence switch
silences this alarm and resets the timer for another 12 minutes of operation. If this
alarm is not silenced within 3 minutes of the check patient alarm occurring, the
alternating two tone alarm is sounded and the heater is deactivated until the alarm
silence switch is pressed.
Power Failure Alarm:
A battery operated power failure alarm activates when the external power source fails or
is accidentally disconnected. The battery also provides power to an electronic memory to
recall previous control temperature settings for approximately 10 minutes, when the
battery is fully charged.
Table 1 — Warmer Alarms
Alarm Condition Alarm Sound Alarm Silence Period Heater
Probe Failure‡ Alternating Two-Tone † 1 minute Off
Patient Temperature Alternating Two-Tone † 1 minute Off
is greater than 42°C‡
Patient Temperature Alternating Single-Tone † 5 minutes *
more than 2°C from
Control temperature‡
Patient Temperature Alternating Single Tone † 15 minutes *
between 1 and 2°C §of
Control temperature‡
Patient Temperature Alternating Two-Tone † 1 minute Off
is less than 30°C ‡
System Failure** Alternating Two-Tone Cannot be Off
silenced
Heat Off Alternating Single Tone † 5 minutes Off
Check Patient Alternating Single Tone † 12 minutes *
after 12 minutes
Alternating Two-Tone
15 minutes Off
after 15 minutes
Power Failure Alternating Single Tone Cannot be silenced Off
* Heater output is dependent on the Patient Temperature and Control Temperature
settings in the servo mode, and the % Power setting in the manual mode.
** Error code in elapsed time display indicates the cause of the alarm.
† Preceded by a 30 second operator prompt tone.
‡ Not applicable to model 2001 International
§ Can be set to between .5 and 2°C by qualified service personnel.