Nihon Kohden Corporation ZM-520PA Benutzerhandbuch

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Operator’s Manual  ZM-520PA/521PA/530PA/531PA

Signal receiving 
condition is poor.

Another transmitter with the 
same channel is used nearby.

Turn the transmitter power off. If the 
monitor still receives a signal, there 
is a high probability that another 
transmitter of the same channel is 
used nearby. Follow the instruction 
of your channel administrator and use 
another transmitter with a different 
channel.

Signals of another patient are 
mixing.

Follow the instructions of your 
channel administrator and use 
another transmitter of a different 
channel.

The transmitter is damaged.

Contact your Nihon Kohden 
representative.

The heart rate is 
unstable.

Pacing detection setting on the 
monitor is not correct.

Turn off the pacing detection setting 
on the receiving monitor. When 
monitoring a pacemaker patient, turn 
on pacing detection.

The “CHECK 
ELECTRODES” 
message appears 
on the receiving 
monitor.

Electrode lead is disconnected 
from the electrode.

Firmly connect the electrode lead to 
the electrode.

Electrode lead discontinuity.

Replace the electrode lead with a 
new one.

Electrode is not firmly attached 
to the skin.

Replace the electrode with a new 
one.

Polarization voltage is 
abnormally high.

Use Nihon Kohden specified 
electrodes.

ECG baseline is 
thick (AC hum).

The gel on the electrode is dried 
out.

Replace the electrode with a new 
one.

The gel on the electrode is 
coming off.

An electric blanket is used.

Cover the blanket with a shield cover.

The hum filter is set to OFF on 
the monitor.

Set the filter to ON.

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