Power supply: DC 5V 1A

maximum trace printing range: each trace should be ≥ 25mm (including waveform crossing part)

input impedance: Input impedance should not be greater than 10nA

polarization resistance voltage: plus ± mV DC polarization voltage, sensitivity variation range should be ± 5%

minimum detection signal: For 10Hz,20Μ the sine signal of VP-P deflection should be able to detect

51K is connected between the input terminal and the neutral electrode.Ω resistance and 0.047ΜF capacitor parallel impedance

in the frequency range of 4.10 expensive, the noise levels converted to the input should be as follows:

acquisition box noise level should be ≤ 15 vp-p

common mode rejection ratio acquisition box: common mode rejection ratio should be greater than or equal to 100dB

the time constant of low frequency characteristics should not be less than 3.2s.