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4. In Nurse Call menu, set Signal Type to Pulse. Cause the monitor to generate an alarm and verify the output are
pulses of 1s width and the relay contacts are closed (can be measured with a multimeter) when there is an alarm.
5. In Nurse Call menu, set Signal Type to Continuous. Cause the monitor to generate an alarm and verify the output
is continuous high level and the relay contacts are closed (can be measured with a multimeter) when there is an
alarm.
4.6 Analog Output Performance Test
Tools required:
Patient simulator
Oscilloscope
1. Connect the patient simulator to the monitor using an ECG or IBP cable and connect the oscilloscope to the
Auxiliary Output Connector of the MPM module of the patient monitor.
2. Verify that the waves displayed on the oscilloscope are identical with those displayed on the monitor.
4.7 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.
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).