Neurosoft Neuron-Spectrum-61 Technical Manual page 12

Neuron-Spectrum-61, 62, 63, 64, 65 (Technical Manual)
Table 2. Continued
Permissible relative error in recording of calibration marks at printing
High pass filter (HPF)
Low pass filter (LPF)
Bandpass:
 by (3 ± 0.5) dB level
 with disabled HPF
Software controlled mains frequency (50/60 Hz) notch filter rejection
ratio
Common mode rejection at 50 Hz
Input impedance at 3 Hz
Bandpass flatness in the 0,5-600 Hz band with respect to 10 Hz
Internal noise level (grounded inputs):
 in the band of HPF - 0,5 Hz LPF - 35 Hz:
o (peak-to-peak)
o RMS (root mean square)
 in the band of HPF - 0,5 Hz LPF - 75 Hz:
o (peak-to-peak)
o RMS (root mean square)
 in the band of HPF - 0,5 Hz LPF – 150 Hz:
o (peak-to-peak)
o RMS (root mean square)
 in the band of HPF - 0,5 Hz LPF – 600 Hz:
o (peak-to-peak)
o RMS
Patient leakage current running through any electrode excluding the
ground one
Maximum sampling rate
Number of channels
Operating modes
Input voltage measurement range
12
Parameters
Differential channels
Values
± 5 %
discrete values can be selected
from the range: 0.05, 0.5, 0.7,
1.5, 2, 5 and 10 Hz, arbitrary
value can be set in the range
from 0,05 to 10 Hz with 0,01 Hz
step or can be disabled
discrete values can be selected
from the range: 5, 10, 15, 35, 70,
75, 100, 150, 200, 250 and
500 Hz, arbitrary value can be
set in the range from 5 to 600 Hz
with 0,1 Hz step (sampling
frequency is more than double
cutoff frequency) or can be
disabled
from 0.05 to 600 Hz
from 0 to 600 Hz
not less than 40 dB
not less than 120 dB
not less than 200 MΩ
within ±2 %
not more than 1,4 µV
not more than 0,21 µV
not more than 2 µV
not more than 0,28 µV
not more than 3 µV
not more than 0,38 µV
not more than 6 µV
not more than 0,78 µV
not more than 5 nA
16 kHz ± 1%
1)
4/4/6/6/8/4
differential and direct current
signal acquisition
from –1.1 up to 1.1 V, can be
set by the program with the
following discrete values: ± (350,
500, 650, 900, 1100) mV