2. Transmission mode: optical cable transmission.
3. Power supply mode: the whole machine is integrated with AC power supply, and the power amplifier cannot be powered by battery.
4. Input impedance: ≥ 1000 megohm.
5. Voltage sensitivity: 0.05 UV/d—65438+1100mv/d (non-display sensitivity).
6. frequency range: 0.5 Hz ~ 10 kHz (voltage measurement error +5%- 15%).
7. Scanning time: 1 ms/day-200ms/day.
8. It has the function of electrode impedance test.
9. Resolution: 24 bits
10, sampling rate: ≥200 kHz.
1 1, * * mode suppression ratio ≥ 1 15dB,
12, input short-circuit noise: ≤ 0.4μ vrms (0.1-20khz)1,maximum current pulse intensity:100ma 5%, and pulse intensity error ≤ 5%.
2. Pulse output frequency: 0. 1 Hz ~ 1.20 Hz. 1, mode flip stimulator, LED eye mask, black-and-white multi-level adjustable chessboard, horizontal bar and vertical bar pattern 2, stimulating visual field: full visual field, half visual field, 1/4 visual field.
3. fixation point: movable 1, earphone sound stimulator: maximum click sound intensity: ≤ 135dB(SPL peak), pure tone, sonic boom, etc.
2. Stimulation polarity: sparse wave, dense wave and alternating wave.
3. The maximum white noise intensity of the opposite ear is105—115dB (SPL peak).
4. Masking noise: the white noise on the left, right, both sides, opposite side or the same side is 1, and the company has a legal and valid business license, a legal and valid production license and a medical device registration certificate.
2. The enterprise has valid ISO 13485:2003 and ISO900 1:2008 quality certification.
3. Those who have "EMG/EP Instrument Excellent Product Certificate" are preferred and get extra points.
4. Comprehensive reference to the international special safety standard IEC6060 1-2-40 and IEC General Electric Safety Standard.
5. Fully meet the general requirements of medical electrical equipment Part 1-2: Safety. Parallel standards: electromagnetic compatibility requirements and test standards YY 0505/IEC 60601-1-2.
6. Provide legal and effective EMG/EP test report.