A - 32 BeneVision N22/N19 Patient Monitor Operator’s Manual
A.14.18 EEG Specifications
A.14.19 BIS Specifications
Standard Meet the standard of IEC 60601-2-26
Channels and Leads Four-channel bipolar mode: 9 Leads
Four-channel referential mode: 6 Leads
Analog Bandwidth 0.5 to 110 Hz
Input Signal Range ± 2 mVac
Measurement Bandwidth 0.5 to 30 Hz
Max. Input DC Offset ± 500 mV DC
Common Mode Rejection Ratio ≥100 dB @50 Hz
Noise ≤0.5 uV rms (0.5 to 70 Hz)
Input Differential Impedance ≥15 M @10 Hz
Sampling Frequency 1024 Hz
Electrode Impedance Range:
Resolution:
1 to 100K ,
1 K
Low Filter Frequencies 0.16 Hz, 0.5 Hz, 1.0 Hz, and 2.0 Hz
High Filter Frequencies 15 Hz, 30 Hz, 50 Hz, and 70 Hz
Measured Parameters
Measurement range Resolution
SEF, MF, PPF 0.5 to 30 Hz 0.5 Hz
TP 40 to 100 dB 1 dB
EMG 0 to 100 dB
Delta, Theta, Alpha, Beta 0 to 100% (±1%) 1%
SR 0 to 100% 1%
Standard Meet the standard of IEC 60601-2-26
Technique Bispectral index
Measured parameters EEG
BIS, BIS L, BIS R: 0 to 100
Calculated parameters SQI, SQI L, SQI R:0 to 100%
EMG, EMG L, EMG R:0 to 100 dB
SR, SR L, SR R:0 to 100%
SEF, SEF L, SEF R:0.5 to 30.0 Hz
TP, TP L, TP R:40 to 100 dB
BC, BC L, BC R:0 to 30
sBIS L, sBIS R:0 to 10.0
sEMG L, sEMG R:0 to 10.0
ASYM:0 to 100%
Impedance range 0 to 999 k
Sweep speed 6.25 mm/s, 12.5 mm/s, 25 mm/s or 50 mm/s, ±10% error
Input impedance >5 M
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