Malfunction
Possible causes
Rectification
The ECG device will not turn on
Dead batteries, reversed batteries.
Exchange batteries for fully charged
ones. Check the polarity of the
inserted batteries.
The measuring unit cannot be detected
by other Bluetooth devices.
It is already paired with another
device.
Switch the device on and then press
the power button for at least 20
seconds until it beeps. The device is
now ready to be paired again and is
visible to other Bluetooth devices after
switching on again.
Issues caused by conflict with USB
3.0 hard drives/flash drive, internal
built in BT antenna, too many BT
devices or incorrect BT dongle used.
There are several issues that may
cause an issue with detection/pairing,
see section 17. Troubleshooting guide
for pairing the BT12 for details on
resolving all known issues.
You are prompted to enter a PIN
number during pairing.
The ECG device is being newly paired
with a monitor.
Please enter “1111” during this
process.
After switching on, the display
continuously shows an error code.
PCBA fault.
Switch off the device. Take out the
batteries and put them back in.
Afterwards, switch on the device
again. If the error code is still present
stop using the device and contact
Vitalograph.
The “Radio active” symbol does not
appear on the display or disappears
from the display during use.
The wireless connection cannot be
established or has been broken.
Reduce the distance to the receiver
unit (<10m) and remove any existing
obstacle. If necessary, carry out
pairing again.
See section 17. Troubleshooting
guide for pairing the BT12 for details
on resolving all known issues.
Displaying too few channels for desired
12-channel use.
Incorrect configuration.
Configure the ECG measuring unit for
12-channel use
No warning sounds for critical events.
Loudspeaker is muted or is defective.
Check the configuration of the
loudspeaker. Muting is indicated on
the display by the crossed-out
loudspeaker symbol. If the sounds are
enabled and the warning sounds are
still missing it is likely a defective
speaker, contact the manufacturer.
Pulse frequency is not shown on the
display.
The ECG device is in limited display
mode.
Check the configuration of the display
mode and reconfigure if required.
One or several electrode contact points
flash despite all electrodes being
connected.
The electrode contact is poor.
The cable is defective.
Check the positioning and the skin
contact of the electrodes. Press the
electrodes on firmly. If necessary,
shave any hair or clean the skin.
Replace the electrode. Use electrode
gel/spray to improve contact.
If the above measures do not resolve
the issue the cable could be defective.
Replace the ECG cable.
Device sounds 2 seconds on, 2
seconds off, for 1 minute.
Wireless connection has been
interrupted.
Reduce distance (<10m) to the
receiver unit and/or remove any
obstacles.
Device emits a sound at the same
frequency as the flashing of the
electrode contact points.
An electrode has come loose during
measurement.
Check the electrode contact and
replace the electrode if necessary.
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