iMediSync iSyncWave - Essential Performance and Maintenance; Essential Performance Testing; Device Storage and Handling

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6.5 Essential Performance
Test Name
Test Method
Test Criteria
Test Period
Accuracy of signal
reproduction
Measurement of the degree of
reproduction after inputting a
signal in the range of ±0.5 mV
that changes at a speed up to 12
mV/s.
Reproduced
within 20% error
or +/- 10uV as a
larger value.
Once a year
Dynamic input range
and differential offset
When a DC offset voltage within
the ±300 mV range and a
differential input signal voltage of
±0.5 mV that changes at a speed
of up to 12 mV/s are applied,
measure whether the time
variability output signal amplitude
meets the test criteria throughout
the range of the DC offset.
Less than 10 %
Once a year
Frequency response
The output from 0.5 Hz to 50 Hz
is 71% to 110% of the output for
the 5 Hz sinusoidal input signal.
0.5 Hz ~ 50 Hz
Once a year
Noise level
Connect all input channel with
reference and measure the internal
noise level for each channel.
Less than 4.0 μV
Once a year
Common mode
rejection
Measure the output signal for
each channel using power
frequency signal of 1V 50/60 Hz
as a input
More than 89
dB
Once a year
6.6 Maintaining and Storing the Device
1. Get the device inspected at least once a year by an authorized technician.
2. Store the device away from moisture, dust, and humidity.
3. Store the device in an isolated space safe from inclines, shocks, and vibrations.
4. Do not drop the device when storing.
4. Turn off, clean, and dry the device after every use.
5. Keep the device and the electrodes away from direct sunlight.
6. Keep the device out of reach of children.
7. Before using the device after a long time, check whether the device operates normally.
8. Do not store the device in an environment with extreme temperature changes, high temperature