Mindray BeneVision N19, Service Manual

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BeneVision N22/BeneVision N19 Patient Monitor Service Manual 3-21
3.7 Electrical Safety Tests
WARNING

Electrical safety tests are a proven means of detecting abnormalities that, if undetected, could prove
dangerous to either the patient or the operator.

All tests can be performed using commercially available safety analyzer test equipment. Maintenance
personnel shall ensure the adaptability, functional completeness and safety of these pieces of test
equipment, and be familiar with their usage.

Electrical safety tests shall comply with the following standards: IEC 60601-1 and ANSI/AAMI ES60601-1.

In case of other stipulations in local laws and regulations, implement electrical safety tests by following
relevant stipulations.

All devices driven by AC power and connected to medical instruments in patient zones must comply with
the IEC 60601-1 standard. And electrical safety tests on these devices must be implemented in accordance
with the test interval of the patient monitor.

Use certified safety analyzer (for example, UL, CSA or AMAI) as instructed to perform relevant tests.
NOTE

Electrical safety check shall be performed after repair or routine maintenance. Ensure that all cover boards,
panels and screws are correctly installed before implementing electrical safety tests.

Electrical safety tests are used to timely detect potential electrical safety risks that might cause damage to
patients, operators or maintenance personnel. Electrical safety tests must be carried out under normal
environmental conditions (that is, normal temperature, humidity and barometric pressure).
See Appendix A Electrical Safety Inspection for electrical safety tests.
3.8 Recorder Check
Tools required:
 None.
1. Print ECG waveforms. The recorder should print correctly and the printout should be clear.
2. Set the recorder to some problems such as out of paper, etc. the patient monitor should give corresponding
prompt messages. After the problem is removed, the recorder should be able to work correctly.
3. Switch automatic alarm recording for each parameter ON and then set each parameter's limit outside set alarm
limits. Corresponding alarm recordings should be triggered when parameter alarms occur.