Page 103
Art. no.: 2.511407 Rev.: a
Trouble Shooting 13
User guide Possible problems 13.1
CT8000P-2
13 Trouble Shooting
13.1 Possible problems
Error Possible causes and indicators Error localisation and troubleshooting
Unit does not switch
on, blank screen
• No power connected; green
LED next to the On/Off button is
not lit.
• Mains connection OK, but indi-
cator and LED are not lit.
Check the mains cable.
If the mains indicator is lit, it indicates that power is reaching the
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.
If the battery is faulty, it is possible that the unit cannot be switched
on even if the mains supply is connected. Have the battery
replaced by your SCHILLER representative.
If the screen is still not lit, it indicates a software error, monitor or
internal power supply problem. Call your local SCHILLER
representative.
QRS traces overlap
• Incorrect settings for patient
• Poor electrode contact
Change the sensitivity setting.
Check the electrode contact and re-apply the electrodes.
If the problem persists, call your local SCHILLER representative.
Note: Some patients have very high amplitudes and even on the
lowest sensitivity settings, the QRS traces can overlap.
"Noisy" traces
• High resistance between skin
and electrodes
• Patient not relaxed
• Incorrect settings
Check the electrode resistance (all leads need to be shown in
green)
Re-apply the electrodes.
Ensure that the patient is relaxed and warm.
Check all filter settings (Menu > Settings > ECG > Filters & for-
mulas).
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.
No printout obtained
after an auto mode
recording.
• No paper
• Paper incorrectly loaded
• Incorrect settings
• Battery operation with less than
15% capacity: no printout possi-
ble
Ensure that paper is loaded.
Reload paper.
Ensure that the paper has been inserted correctly.
Check that the printout is activated for at least one setting, and that
Print after acquisition is activated (see page 75 and 85)
Connect the device to the mains and charge the battery
If the problem persists, call your local SCHILLER representative.
Printout fades, is not
clear, or the printout
is ‘patchy‘
• Old paper inserted
• Dirty print head
• Print-head out of adjustment
Ensure that new SCHILLER paper is inserted.
Note that the CT8000P-2 thermal paper is heat- and light-sensitive.
If it is not stored in its original seal, stored in high temperatures or
is simply old, print quality can deteriorate.
Over a period of time, the printing ink from the grid on the paper can
form a film on the thermal print head. Clean the thermal print head.
If the problem persists, call your local SCHILLER representative.
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