User's Manual
10 Operator’s Manual ZM-520PA/521PA/530PA/531PA
CAUTION
Only use Nihon Kohden specified
electrodes, electrode leads and SpO
2
probes. Otherwise, the maximum
performance from the transmitter
cannot be guaranteed.
CAUTION
The measurement values and
displayed waveforms on the transmitter
and receiving monitor may be different
due to timing delay of the display or
difference in detection settings.
CAUTION
Turn off the power of mobile phones,
small wireless devices and other
devices which produce strong
electromagnetic interference around a
patient (except for devices allowed by
the hospital administrator). Radio
waves from devices such as mobile
phones or small wireless devices may
be mistaken as pulse waves or
respiration waves and the displayed
data may be incorrect.
CAUTION
• Do not use the same channel
for different patients. If the same
channel is used for two patients, the
two patients’ data will be lost due to
mutual modulation interference, or
another patient’s data may appear
on the receiving monitor screen.
• Do not use two transmitters with
adjacent channels in the same
hospital. If transmitters with adjacent
channels are used, their radio waves
interfere with each other.
CAUTION
Signal loss and artifact may occur
because of the multipath cancellation*
when using a transmitter.
* Multipath Cancellation (Standing Wave
Interference):
:KHQDUDGLRZDYHUHÀHFWVRIIDVXUIDFH
there may be some points in the room where
WKHUHÀHFWHGDQGGLUHFWZDYHVDUHH[DFWO\
out of phase. At these points in the room, the
UHÀHFWHGDQGGLUHFWZDYHVFDQFHOHDFKRWKHU
out so that the signal strength is decreased.
Locations where signal loss occurs are called
“null spots”. If the transmitter is moving or
nearby people or objects are moving, null
spots can occur anytime and anywhere.
CAUTION
Do not shake or swing the transmitter
while holding the leads or cables
connected to the transmitter. The
transmitter may come off and injure
someone or damage surrounding
instruments.
CAUTION
Do not reuse disposable parts and
accessories.