12 Trouble Shooting; Possible Problems - Schiller CARDIOVIT FT-1 User Manual

12 Trouble shooting

12.1 Possible problems

Error Possible causes and indicators
• No mains supply; green mains
indicator on the power supply
unit is off.
Unit does not switch
• Mains connection OK, but indi-
on; blank screen
cator
• Incorrect settings for patient.
QRS traces overlap
• Bad electrode contact.
• High resistance between skin
and electrodes
• Patient not relaxed
"Noisy" traces
• Incorrect settings
• No paper
• Paper incorrectly loaded.
No printout obtained
after an auto mode
recording.
• Incorrect settings
• Old paper inserted.
Printout fades, is not
clear or the printout
• Dirty print head
is 'patchy'.
• Line width/contrast setting in-
correct
• Print-head out of adjustment.
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12 Trouble shooting

12.1 Possible problems
Error localisation and troubleshooting
 Check the power supply unit and fuses.
 If the mains indicator is lit, it indicates that power is reaching the
 Check / change the battery. If the battery is faulty, it is possible that
and LED are not lit.
 If the screen is still not lit, it indicates a software fault, monitor
 Change sensitivity setting.
 Check electrode contact and reposition the electrodes.
 If the problem persists, call your local SCHILLER representative.
 Note: Some patients have very high amplitudes and even on the
 Check the electrode resistance (all leads need to be shown in
 Re-apply electrodes.
 Ensure that the patient is warm and relaxed.
 Check all filter settings (Menu > Settings > ECG > Filters & for-
 Activate the myogram filter and change the cut-off frequency.
 Ensure mains filter is correct for mains supply.
 If the problem persists, call your local SCHILLER representative.
 Ensure that paper is loaded.
 Reload paper.
 Ensure that the paper has been inserted correctly with the black
 Check that the printout is activated for at least one setting, and that
 If the problem persists, call your local SCHILLER representative.
 Ensure that new SCHILLER paper is inserted.
 Note that the CARDIOVIT FT-1 thermal paper is heat- and light-
 Over a period of time, the printing ink from the grid on the paper can
 Set the line width, contrast, printer, see page
 If the problem persists, call your local SCHILLER representative.
unit and the internal power supply should be OK. Press and hold
the On/Off key for 10 seconds. Wait a few seconds and switch the
device on again.
the unit cannot be switched on even if the mains supply is
connected.
problem or internal power supply. Call your local SCHILLER
representative.
lowest sensitivity settings, the QRS traces can overlap.
green)
mulas).
mark at the top.
Print after acquisition is activated (see page
sensitive. If it is not stored in its original seal, stored in high temper-
atures or is simply old, print quality can deteriorate.
form a film on the thermal print head. Clean the thermal print head.
CARDIOVIT FT-1
57 and 84)
86.