Single Channel EEG Test System | User Manual
6
1.4 Main specifications
In general, the system has been designed in accordance with IEC 80601-2-26:2019
standard. Test parameters and specifications required for testing are listed as
following:
Parameter
Specification
Main output voltage accuracy
±1% for amplitudes of 50 µVpp or higher
Main output voltage resolution
(DAC resolution)
0.5µV
Frequency / pulse repetition
rate accuracy
±1%
Pulse duration / timing accuracy ±1ms
Resistor tolerance
±1%
Capacitor tolerance
±5%
Precision 500:1 divider
(5
0KΩ:100Ω
)
±0.2%
Sample rate
5kHz ± 0.1%
DC offset (fixed, noise free,
from internal super capacitor)
150mV ± 1%
DC offset (variable, may include
up to 50µVpp noise)
Setting ±1% or ±3mV
Power supply
USB +5Vdc supply (no separate power supply
required) 0.5A (high power mode)
Environment
15 ~ 30°C (by design, not tested)
30 ~ 80% RH(design not tested)
Safety, EMC standards
No applicable safety standards (maximum
internal voltages 12Vdc) For EMC no testing
performed. CE marking based on careful
selection of parts, including USB protection IC,
as well as special filters to reduce noise from
microprocessor (8MHz) and DC/DC converter
(200kHz).
1.5 Cautions
➢
Before using products, use a grounded wrist strap or touch a grounded
object or a metal object, such as the power supply case, to avoid damaging
them due to static electricity.
➢
WhaleTeq does not recommend to connect test equipment with DUT to
conduct Electrostatic Discharge (ESD) test. This may cause unexpected