OPE RA T IONA L A LA R MS AND TRO UBLESHOO T ING
The chart below details alarm conditions, the system response and the recommended user
actions.
Probable Alarm
Condition
Condition and System
Response
Probable Causes
Actions
Check for Air
System detects an empty set
condition, flashes the red and
blue LEDs alternately, and
activates audible alarm.
Heater continues to function
normally.
System automatically resets
and continues normal
operation when air is cleared
from the disposables.
1.
Fluid source is
empty or air in the
fluid path.
2.
Line is clamped shut.
1.
If appropriate,
replace fluid supply.
2.
Open clamps.
No Heat
System detects no heat to the
heater plates, activates audible
alarm, and flashes the red and
blue LEDs alternately.
Failure of the
microprocessor or
temperature sensor.
If failure reoccurs
obtain replacement unit
and contact service.
Over Temperature
System detects fluid
temperature (i) Moderate to
High Flow: >42.5°C for 2
min, or ≥ 48
°C for 2.5 sec, or
(ii) Low Flow: >42°C for 2.5
sec or ≥ 44
°C for 1 sec, or
(iii) Output Plate
Temperature reaches 50.5°C.
Stop heating, and flash red
and blue LEDs alternately.
1.
Repeatedly stopping
and restarting during
high flow conditions.
2. Failure of the
microprocessor or
temperature sensor.
1. Clamp line, turn unit
off and re-power.
2. If failure reoccurs
obtain replacement
unit and contact
service.
Probe Fault
Internal malfunction, at start-
up.
Hardware temperature
override circuit not
working properly.
Turn unit off
and re-
power. If not
successful, call service.
At these alarms, system stops heating, and flashes the red and blue LEDs alternately.
To
reset or retry,
press the ON/OFF switch to OFF, and then turn power to ON
to resume
operation.
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