General Alarms and Troubleshooting
COBE
®
Spectra™ Apheresis System •
Essentials Guide
12-57
RETURN PRESSURE HIGH! Decrease return flow scale.
Alarm LED is red. Pumps stop.
This alarm occurs only during a Single-Needle Run mode, usually after
the centrifuge suddenly stops, when pressure in the return pressure
sensor measures above the specified limit.
RETURN PRESSURE HIGH!
Decrease return flow scale.
CONTINUE
Note:
If you get repeated Single-Needle alarms, see “Repeated
Single-Needle Alarms” on page 12-2.
Probable Cause
Action
Return Flow Controller return flow scale set too high
Decrease the return flow scale setting.
If the “RETURN FLOW TOO SLOW!” alarm appears at the end of the next Return phase, allow the Single-
Needle bag to empty, then decrease the inlet pump flow rate.
Press
CONTINUE
.
Blockage in the access/return line or needle
Check for kinks in or clamps on the access/return line or clots in the needle. Press
CONTINUE
.
Buildup of pressure in the system caused by an alarm
condition or operator action that caused the centrifuge to
stop
Release pressure in the system according to the instructions on page 12-55.
Needle too small
– or –
Inlet pump flow rate too high
Lower the inlet pump flow rate.
Internal system malfunction
Note the alarm message. Press
CONTINUE
.
If the alarm recurs, discontinue the procedure. Press
CHANGE MODE
, then press
4
to select “Rinseback.” To
override the alarm during Rinseback mode, press
CONTINUE
. Notify a qualified service technician of the alarm
message.
Summary of Contents for Cobe Spectra
Page 1: ......
Page 7: ...COBE Spectra Apheresis System Essentials Guide 1 1 1 Preface ...
Page 27: ...COBE Spectra Apheresis System Essentials Guide 2 1 2 Introduction ...
Page 75: ...COBE Spectra Apheresis System Essentials Guide 5 1 5 Software Options and Configuration ...
Page 92: ...Software Options and Configuration 5 18 COBE Spectra Apheresis System Essentials Guide ...
Page 93: ...COBE Spectra Apheresis System Essentials Guide 6 1 6 Automatic and Manual Modes ...
Page 98: ...Automatic and Manual Modes 6 6 COBE Spectra Apheresis System Essentials Guide ...
Page 99: ...COBE Spectra Apheresis System Essentials Guide 7 1 7 Alarm Tests ...
Page 103: ...COBE Spectra Apheresis System Essentials Guide 8 1 8 Anticoagulation ...
Page 109: ...COBE Spectra Apheresis System Essentials Guide 9 1 9 Fluid Volumes ...
Page 115: ...COBE Spectra Apheresis System Essentials Guide 10 1 10 General Maintenance ...
Page 120: ...General Maintenance 10 6 COBE Spectra Apheresis System Essentials Guide ...
Page 121: ...COBE Spectra Apheresis System Essentials Guide 11 1 11 Helpful Hints and Recovery Procedures ...
Page 133: ...COBE Spectra Apheresis System Essentials Guide 12 1 12 General Alarms and Troubleshooting ...
Page 197: ...COBE Spectra Apheresis System Essentials Guide 13 1 13 Specifications ...
Page 208: ...Specifications 13 12 COBE Spectra Apheresis System Essentials Guide ...
Page 209: ...COBE Spectra Apheresis System Essentials Guide 14 1 14 Data Input Limits ...
Page 212: ...Data Input Limits 14 4 COBE Spectra Apheresis System Essentials Guide ...
Page 213: ...COBE Spectra Apheresis System Essentials Guide 15 1 15 The Seal Safe System ...
Page 224: ...The Seal Safe System 15 12 COBE Spectra Apheresis System Essentials Guide ...
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