SECTION 3 OPERATING THE BIS VIEW MONITORING SYSTEM
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3-5
PASS
- An electrode passes if the impedance for that electrode is less than 7.5 kilo
ohms. The ground electrode (element #2) must be less than 30 kilo ohms to pass.
HIGH
- An electrode is labeled “HIGH” if its impedance value is above 7.5 kilo
ohms. As long as the combined impedance of electrodes #1 and #3 and the
combined impedance of electrodes #1 and #4 are less than 15 kilo ohms, the sensor
check will be considered successful.
NOISE -
If the signal from the electrode goes beyond the measurable range, the
label “NOISE” displays.
LEAD OFF
- If the impedance check indicates that the electrode is not in contact
with the patient, the label “LEAD OFF” displays.
If an electrode does not pass
the impedance check, press the edges of the sensor to ensure
adhesion and then press each circle for 5 seconds to ensure proper contact. If the problem
persists, re-prep the electrodes and check all connections. The monitor will continue to
check impedance until it is acceptable.
The “Show Values” Sensor Check Display may be selected as the default Sensor Check
screen display if desired. See Section 3.6.3.1 “Screen Options” for details.
