Grael HD EEG
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A DC-coupled, digital amplifier system with a high input range and 24-bit resolution providing amplification and digitization of electroencephalographic physiologic signals from surface, cortical and depth electrodes. The amplifier provides 40 channels (32 isolated high-frequency referential channels, 8 bipolar channels) and an integrated pulse-oximeter and event button input. The unit has a POE 10OBASE-TX network connection for both power and communication.

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Technical specifications INPUT IMPEDANCE BIAS CURRENT INPUT NOISE INPUT RANGE HIGH PASS FILTER 32, DC-coupled, fully isolated, referential (monopolar); fully isolated, bipolar inputs NOTCH FILTER < 2 uVpp typical (referential ch) Software based display filtering ISOLATION SPECIFICATIONS Complies with IEC 60601 -1 CF patient Inputs ANALOGUE TO DIGITAL CONVERTER SAMPLE AND DATA RATES CHANNELS 1 TO 40 Data sampled at 16384 samples per second and decimated to data rates shown below. Actual data rate sent is determined by controlling PC software application. Output data rate 2048,1024,512 or 256...

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