Responding to System Alarms
7-10 LigaSure Vessel Sealing Generator Service Manual
Responding to System Alarms
When a system alarm condition exists, an alarm tone sounds and a number flashes
in the macro and bipolar displays. Until you correct it, the alarm condition
disables the generator, preventing RF activation.
All system alarms require some action on your part to correct the condition. Use
the following table to determine how to correct an alarm condition.
After correcting the alarm condition, turn the generator on and verify that no other
alarms exist.
Pacemaker
interference.
Intermittent connections or
metal-to-metal sparking
Check all connections to the generator.
It may be necessary to reprogram the pacemaker.
Abnormal
neuromuscular
stimulation (stop
surgery immediately).
Metal-to-metal sparking Check all connections to the generator and active
electrodes.
Abnormal 50-60 Hz leakage
currents
Inside the generator, carefully inspect for damage that
may cause shorting between the AC line voltage and
connected patient components.
Smart card reads an
invalid handset.
Faulty handset Replace the handset.
Handset not valid for this
receptacle
Check that you have plugged the handset into the correct
receptacle:
Vessel sealing handset into vessel sealing receptacle
(purple)
Bipolar handset into bipolar receptacle (blue).
Faulty smart card Replace the front panel. For instructions, refer to
Chapter 8, Front Panel and Display Board.
Situation Possible Cause Recommended Action
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