QEEG-64FX

Amplifier

Number of Channels Mono-polar, 64ch (Max)
– EEG
Bipolar, 3ch
– EOG, ECG, EMG, user defined
Option for Maximum EEG channel 8ch, 16ch, 24ch, 32ch, 40ch, 48ch, 56ch, 64ch
Reference Selections   Above EEG 24 ch :
– A1, A2, (A1+A2)/2, Cz(CH18)
Below EEG 16 ch :
– A1, A2, (A1+A2)/2
Input Range ± 0.36 V for all channels
Input Impedance > 300 Mohm
Internal Noise < 0.2 uVrms 
CMRR > 100 dB
Input Error < ±1%
Input Coupling DC (@ High Pass Filter Off)
Gain Calibration Yes
DC Offset Calibration Yes

Impedance

Leadoff Check Real-time monitoring
Lead ON
– Active : Green LED ON
– Reference : Blue LED ON
Lead OFF
– Active : Purple LED ON
– Reference : Purple LED ON(selected),
LED OFF(non-selected)
Leadoff Detection type DC
Impedance Meas. Type AC (62.5Hz)
Impedance Meas. Range 0 ~ 200 kohm
Impedance Error ±10%

Filter

High Pass Filter, -3dB Off, 0.1Hz, 0.5Hz, 2.5Hz, 12.5Hz, 25Hz,
for all sampling frequency,
User selectable
Low Pass Filter, -3dB 25Hz, 50Hz, off (@ 250Hz sampling freq.)
50Hz, 100Hz, off (@ 500Hz sampling freq.)
100Hz, 200Hz, off (@ 1kHz sampling freq.)
200Hz, 400Hz, off (@ 2kHz sampling freq.)
Notch Filter, fc 50/60 Hz(on/off user selectable)
Attenuation >  50dB

Analogue to Digital Conversion 

Resolution 24 bits
Sampling frequency 250, 500, 1k,2k sps/ch ; user selectable
Sampling frequency error ± 50 ppm

Interface

Interface USB 2.0

Input/Output Connector

Input Connector 100-pin. I/O connector
Computer Interface Connector USB-B type

Demension

 Size 150(W) X 150(H) X 32(D) , mm
 Weight 700 g

Electric property

Supply Power +5 VDC (from USB Power)
Consumption current 8ch: Below 230 mA
16ch: Below 250 mA
24ch: Below 275 mA
32ch: Below 300 mA
40ch: Below 325 mA
48ch: Below 350 mA
56ch: Below 375 mA
64ch: Below 400 mA

Operating environment

Temperature 10 ~ 40 ℃
Humidity 30 ~ 80 %

Transportation and storage environment

Temperature -20 ~ 60 ℃
Humidity 20 ~ 90 %

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