1, the number of channels: 4 channels
2, transmission mode: fiber optic cable transmission
3, power supply: the whole integrated AC power supply, the amplifier can not be powered by batteries
4, the input impedance: ≥ 1,000 megohms
5, the voltage sensitivity: 0.05 uv/D-10mv/ D (non-display sensitivity)
6, frequency range: 0.5Hz ~ 10KHz (voltage measurement error +5% - -15%)
7, scanning time range: 1ms/D-200ms/D
8, with electrode impedance test function
9, resolution: 24 bits
10, sampling rate: ≥ 200 kHz
11, ****mode rejection ratio ≥ 115dB,
12, the input short-circuit noise: ≤ 0.4μVrms (0.1-20khz) 1, the maximum current pulse intensity: 100mA ± 5%, the pulse intensity error of ≤ ± 5%
2, the pulse output frequency: 0.1Hz to 120Hz. 1, pattern flip stimulator, LED eye mask, black and white multi-position adjustable checkerboard grid, horizontal bar, vertical bar grid, horizontal bar grid, vertical bar pattern 2, stimulation of the field of view: full field of view, half field of view, 1/4 field of view
3, the point of attention: movable 1, headphone sound stimulator: maximum Click sound intensity: ≤135dB (SPL peak), pure sound, burst sound, etc
2, stimulation polarity: sparse wave, dense wave, alternating wave
3, the contralateral ear maximum white noise sound intensity of 105-115db (SPL peak)
4, masking sound: left, right, bilateral, contralateral or ipsilateral white noise 1, with the company's legally valid business license, legally valid production license, medical device registration certificate
2, the company has a legally valid ISO13485: 2003 and ISO9001: 2008 quality certification
3, with the "EMG / evoked potential instrument famous product certificate" is preferred and extra points
4, full reference to the international EMG evoked potential instrument dedicated safety standards IEC60601-2-40, IEC General Electrical Safety standards
5, in full compliance with the medical electrical equipment Part 1-2: General safety requirements and standards: electromagnetic compatibility requirements and test standards YY0505/IEC60601-1-2
6, to provide legal and effective "electromyography / evoked potential device test report".