Patient monitor User’s manual
21-1
Chapter 21 Maintenance and Cleaning
21.1 Equipment Maintenance
Warning: For optimal performance, product service should be
performed only by qualified service personnel.
Note: To ensure the performance and safety of equipment, it must be
checked after using 1 year. When check the equipment, please
contact professional technology engineers.
Seasonal Safety Check:
Please clean the plug of power cord at least once a year. Too much dust on
plug may cause the fire.
The following safety checks should be performed at least every 12 months
by a qualified person who has adequate training, knowledge, and practical
experience to perform these tests.
The data should be recorded in an equipment log. If the device is not
functioning properly or fails any of the following tests, the device has to be
repaired.
① Inspect the equipment and accessories for mechanical and functional damage.
② Inspect the safety relevant labels for legibility.
③ Inspect the fuse to verify compliance with rated current and breaking
characteristics.
④ Verify that the device functions properly as described in the instructions for
use.
⑤ Test the protection earth resistance according IEC 60601-1: Limit: 0.1.
⑥ Test the earth leakage current according IEC 60601-1: Limit: NC 500μA,
SFC: 1000μA.
⑦ Test the enclosure leakage current according to IEC 60601-1: Limit: NC
100μA, SFC: 500μA.
⑧ Test the patient leakage current (normal operation) according IEC 60601-1:
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