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Sensor Simulator
To test the system from the BISx to the BIS sensor, you will need a Sensor Simulator
(Covidien Part Number 186-0137)
Sensor Check
The sensor check tests and verifies that the monitor is reporting the proper impedance values
provided by the Sensor Simulator.
N O T E
Sensor Check is used in clinical application as an indicator of the patient’s skin
conductivity. When used with a Sensor Simulator, the sensor check serves to test
the cable conductors of the BISx and PIC (patient interface cable), and the status
indications noted above indicate the ability of the BISx and PIC to conduct the
sensor check signal. Values that are too high indicate a need to investigate and
possibly replace the PIC or BISx.
Expected Impedance Values
Sensor Simulator Values
Electrode Typical
Range
1
5K Ohms
4-6 K Ohms
2
10K Ohms
8-17 K Ohms
3
4K Ohms
3-5 K Ohms
4
3K Ohms
2-4 K Ohms
Checking Leakage Current
Safety Testing: Leakage Current
Leakage Current testing should be performed by a qualified Biomedical Engineering Technician or
authorized personnel only
The system should be checked routinely for leakage current at least once a year.
Always have the leakage current checked after a saline or blood spill, or immediately after a major
surge in the house electrical system and after every time the monitor case has been opened. Keep
in mind that liquids such as saline and Ringer’s as well as blood are all excellent conductors of
electricity.
Avoid touching any part of the system with wet hands. Always work with clean, dry hands.
Summary of Contents for HBX-800
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