Operation (XG)
Operation (5-Lead, 5L, LT and XG)
1 - 168
0070-00-0420
Passport 5-Lead, 5L, LT, XG Service Manual
1.6.19.7
Monitor Operation Messages
The following messages pertain to the operation of the monitor.
1.6.20
Monitor Problem Solving
This guide is provided to establish the possible causes and solutions to some Monitoring
problems.
MESSAGE
REASON
SOLUTION
DIAGNOSTICS IN
PROGRESS
Self test is being performed.
Wait for completion of
self-test. Refer to
“Setting-up / Turning
Power On” on page 1-
99.
SELF TEST
COMPLETE
Diagnostics OK.
ESU
INTERFERENCE
Poor electrode site preparation. Excessive cautery
(ESU) noise.Excessive high frequency noise.
Check site; rearrange
electrodes. Change
electrodes. Use ECG
cable with choke.
LEAD FAULT
Lead off of patient.
Check electrodes /
leads.
INTERFERENCE
Poor electrode site preparation. Improper lead
selection. Excessive 50 or 60 Hz noise.Wrong 3-
Lead cable may be in use.*
Check site. Change
Lead selection. Use
proper ECG cable.
ARTIFACT
A 50 or 60 Hz noise is detected on the ECG
waveform. The displayed heart rate may not be
correct.
Check site. Change
Lead selection. Use
proper ECG cable.
*
See Section 5 in the Datascope P/N’s 0070-00-397, 0070-00-0440, and 0070-00-0503 of the Passport Oper-
ating Instructions for a list of the proper ECG cables.
PROBLEM
REASON
SOLUTION
No trace for a
desired
parameter
-Improper attachment of transducer to monitor.
-Faulty transducer.
-Check transducer
connection.
-Try a different
transducer.
Wandering ECG
-Respiration artifact.
-Try a different base line
lead configuration.
Noisy ECG
traces
-Loose or dry electrodes.
-Defective electrode wires.
-Patient cable or leads are routed too close to other
electrical devices.
-Apply new electrodes.-
Replace wires as
necessary.
-Eliminate 60Hz
interference.
-Use ECG cable with
built-in filter block.
Low Amplitude
ECG
-Electrode could be positioned over a bone or
muscle mass.
-Reposition electrodes.
-Press ECG SIZE key.
Excessive Electro-
surgical
Interference
-Inadequate skin prep prior to application of
electrode.
-Repeat skin prep and
electrode placement
procedures.
-Add additional gel to
electrodes.
Summary of Contents for Passport 5-Lead
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