Troubleshooting - Ranger 245 Service Manual

Troubleshooting

CONDITION
Nothing illuminates on the
warming unit panel.
CONDITION
Alarm indicator illuminates
and alarm sounds, alpha-numeric
display alternately flashes a
temperature of 43˚C for the Model
245 (48°C for the Model 247) or
higher and the word "HI."
CONDITION
Alarm sounds, alphanumeric display
and alarm indicator light go dark.
CAUSE
• Unit is not turned on, plugged in,
or power cord is not plugged into
an appropriate outlet.
• Unit failure.
CAUSE
Temporary over-temperature
condition because:
• An extreme change in flow rates
occurred (e.g., from 500 ml/min
to stop flow).
• Unit was turned on and reached set
point temperature before warming
cassette was inserted.
• Fluids were prewarmed to above
42°C before being run through
the warming unit.
CAUSE
Primary controller failure. Unit
will no longer operate.
Ranger Fluid Warming Systems
SOLUTION
• Turn unit on. Make sure the
power cord is plugged into the
power entry module of the
warming unit. Make sure the
warming unit is plugged into
a properly grounded outlet.
• Call Arizant Healthcare Inc.
Technical Service.
SOLUTION
• Open flow to reduce temperature.
Alarms will stop when the display
reads 41°C. The unit is ready
to use.
• Alarms will stop when the display
reads 41°C. The unit is ready
to use.
• Turn off unit. Discontinue infusion
of fluids. Do not warm fluids
before infusing them through
the Ranger unit.
SOLUTION
Power to heating plates will shut off
if temperature rises to 44˚C for the
Model 245 (50°C for the Model
247). Turn unit off and unplug it.
Discontinue use of unit. Discard
disposable set. Alarm will continue
to sound if you do not unplug
unit. Call Arizant Healthcare Inc.
Technical Service.
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