User's Manual
Operator’s Manual ZM-520PA/521PA/530PA/531PA i
GENERAL HANDLING PRECAUTIONS
This device is intended for use only by qualified medical personnel.
Use only Nihon Kohden approved products with this device. Use of non-
approved products or in a non-approved manner may affect the performance
specifications of the device. This includes, but is not limited to, batteries,
recording paper, pens, extension cables, electrode leads, input boxes and AC
power.
Please read these precautions thoroughly before attempting to operate the instrument.
1. To safely and effectively use the instrument, its operation must be fully understood.
2. When installing or storing the instrument, take the following precautions.
(1) Avoid moisture or contact with water, extreme atmospheric pressure, excessive humidity
and temperatures, poorly ventilated areas, and dust, saline or sulphuric air.
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during transport.
(3) Avoid placing in an area where chemicals are stored or where there is danger of gas
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(4) The power line source to be applied to the instrument must correspond in frequency and
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(5) Choose a room where a proper grounding facility is available.
3. Before Operation
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(4) Pay extra attention when the instrument is in combination with other instruments to avoid
misdiagnosis or other problems.
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operated models.
4. During Operation
(1) Both the instrument and the patient must receive continual, careful attention.
(2) Turn power off or remove electrodes and/or transducers when necessary to assure the
patient’s safety.
(3) Avoid direct contact between the instrument housing and the patient.