User's Manual

Operator’s Manual ZM-940PA/941PA 1
Introduction
The ZM-940PA/ZM-941PA transmitter transmits ECG, respiration, SpO
2
, NIBP and pulse waveform
from a patient to a Nihon Kohden monitor for continuous monitoring. The transmitter can change
channels when connected to the QI-901PK channel writer. The front LCD displays SpO
2
%, NIBP,
pulserate,pulsewaveformamplitude,electrodeconditionmark,batteryconditionandNIBP
measuring mode and interval.
The difference between the ZM-940PA and ZM-941PA is the transmission frequency range.
ZM-940PA:608.0250MHz(channelnumber9002)to613.9750MHz(channelnumber9478)
ZM-941PA:1395.0250MHz(channelnumberE002)to1399.9750MHz(channelnumberE398)
 1427.0250MHz(channelnumberE502)to1431.9750MHz(channelnumberE898)
Read the operator’s manual for the receiving monitor together with this manual before operation.
WARNING
Do not use the same transmitter on
more than one patient at the same
time. Do not connect different sensors
on different patients to the same
transmitter.
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 transmitters of adjacent
channels in a hospital. If a
transmitter of an adjacent channel is
used, radio waves from one
transmitter affect the receiver of the
adjacent channel’s transmitter and
there may be interference.
NOTE
• To prevent interference between channels, assign a channel administrator in the hospital
and only he or she should manage channel assignment.
• Use Nihon Kohden parts and accessories to assure maximum performance from your
instrument.
• For stable signal reception, it is recommended to use a diversity antenna system on the
receiving monitor. Otherwise, spike noise from transient fading of electric field strength
(for example, people moving) may interfere with the transmitter signal and may be
mistaken as an arrhythmia on the receiving monitor.