User’s Manual for Omega 12Patient Monitor
157
EEG General Specification
Standard
IEC 60601-2-26:2012
Patient Leakage Current
<=10μA (AC: 110V)
Calibration Signal
1mV (peak to peak value
）
Differential Input Impedance
>15MΩ @ 10 Hz
Max. DC Input Offset Voltage
±320 mV
Input Protection
Against defibrillation (5kV) and electrosurgery
Common Mode Rejection Ratio
> 105dB @ 5kΩ imbalance and 60 Hz
Noise
<0.4μV RMS (1 ~ 30 Hz)
Electromagnetic Sensitivity
< 10μV (peak to peak) @ 3 V/m, 26-1000 MHz
Electrode
Impedance Measurement
0 ~ 30kΩ, ±1kΩ
Bandwidth
0.25 - 100Hz (-3dB)
High Filter
Cut-Off Frequencies
15 Hz (65 dB/ octave)
30 Hz (75 dB/ octave)
50 Hz (85 dB/ octave)
Low FilterCut-Off Frequencies
0.5,1.0,2.0 and 5.0 Hz (12 dB/ octave)
Measurement Parameter
Measurement Range
Error
BIS
0 - 100
Not specified
SQI
0 – 100%
EMG
0 - 100dB
SR
0 - 100%
SEF
0.5 - 30.0Hz
TP
0 - 100dB
Burst Counts (BC)
0 – 30/min
Noise
<0.3μV RMS (2.0μV peak to peak)
Waveform Scale
50μV, 100μV, 200μV, 500μV
Refresh Rate (BIS Value)
2048ms
Bandwidth
0.25 - 100Hz (-3dB)
High Pass Filter
0.25Hz,1Hz,2Hz (-3 dB)
Low Pass Filter
30Hz,50Hz,70Hz,100Hz (-3 dB)
Notch Filter
（
Frequency
）
50Hz,60Hz
Impedance Range
0 ~ 999kΩ
Alarm Limit
Range
BIS Alarm High
(Low limit + 2) ~100 Default value: 70
BIS Alarm Low
0 ~ (high limit - 2) Default value: 20
