SE-12 Series Electrocardiograph User Manual Cleaning, Care and Maintenance
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♦ Make sure that there is no polyvinyl chloride or other chemicals in the storage
environment, which will lead to color change of the paper.
♦ Do not overlap the recorder paper for a long time, or else the ECG reports may
trans-print each other.
14.4.3 Visual inspection
Perform a visual inspection of all equipment and peripheral devices daily. If you notice any items
that need repair, contact a qualified service engineer to make the repairs.
Check the case and display screen for cracks or other damage.
Regularly inspect all plugs, cords, cables, and connectors for fraying or other damage.
Verify that all cords and connectors are securely seated.
Inspect keys and controls for proper operation.
14.4.4 Maintenance of the Main Unit and the Patient Cable
CAUTION
Besides the maintenance requirements recommended in this manual, comply with local
regulations on maintenance and measurement.
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.
a) Inspect the equipment and accessories for mechanical and functional damage.
b) Inspect the safety related labels for legibility.
c) Inspect the fuse to verify compliance with the rated current and circuit-breaking
characteristics.
d) Verify that the device functions properly as described in the instructions for use.
e) Test the protection earth resistance according to IEC/EN 60601-1: Limit: 0.1 ohm.
f) Test the earth leakage current according to IEC/EN 60601-1: Limit: NC 500μA, SFC
1000μA.
g) Test the enclosure leakage current according to IEC/EN 60601-1: Limit: NC 100μA,
SFC 500μA.
h) Test the patient leakage current according to IEC/EN 60601-1: Limit: NC a.c. 10μA, d.c.
10μA; SFC a.c. 50μA, d.c. 50μA.
i) Test the patient auxiliary current according to IEC/EN 60601-1: Limit: NC a.c. 10μA,
d.c. 10μA; SFC a.c. 50μA, d.c. 50μA.