CARDIAC STIMULATOR
ENGLISH Page 39 of 49
12.13 Additional Software Messages
12.13.1 Advisory Messages
These short advisory messages are intended to notify user of some abnormal conditions, which
however may not need any action or response from the user and thus do not interrupt the user
performing the EP study.
They appear in one of four zones below the ECG Display Bar and are displayed only for several
seconds.
Hardware related
Advisory
Messages
Explanation Suggested Action
Noisy PC Comm PC detected sequence error in last RS232
data packet from SGU.
Check, re-insert or replace Serial
Boost Cable (MP3033A) between
PC and SGU.
Noisy PC Comm-
Hw
PC detected parity/framing/overrun error
in last RS232 data packet from SGU.
Noisy SGU
Comm
SGU detected parity error in last RS232
data packet from PC.
High Atrial
Impedance
High impedance on atrial channel -
calculated impedance > 4kOhm or current
< 75% of programmed current with output
voltage on maximum.
Check for cable disconnection,
wrong ‘Stim setting’ on recording
equipment and pacing catheter
integrity.
High Ventr
Impedance
As above but for Ventricular channel.
Ext Sync1
Detected
Sync pulse input detected on Ext.Sync1
input port.
Not used. Contact distributor if
sign appears.
Ext Sync2
Detected
Sync pulse input detected on Ext.Sync2
input port.
Ext Power
Disconnected
External 15V power supply is
disconnected (or < 2.5VDC). SGU
operating on backup battery power.
Reconnect external power.
Backup Battery
Low
Backup battery has low charge. Connect external power to
recharge. If persistent, Backup
Battery requires servicing.
Output
Interference
Output current not within +/- 25%
tolerance, for either channel.
Ignore if sign related to RF
Ablation, else SGU requires
service.
Prog Exception: Internal SGU problem – program flow trap
code.
Record code number, disconnect
patient from EPS320 Stimulator
and request SGU servicing.
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