7
SECG 4.0 | User Manual
1.4
Main specifications
In general, the system has been designed to the standards above, taking into
account Clause 201.5.4 in IEC 60601-2-25 and IEC 60601-2-27. Below includes these
parameters and also other system parameters necessary for testing. For reference
the system capability is provided.
Parameter
Specification
System capability /
notes
Main output voltage
accuracy
±1% for amplitudes of
0.5mVpp or higher
±0.3%
Main output voltage
resolution
(DAC resolution)
2.5µV
In version 4.0, a single
output range is used
Frequency / pulse
repetition rate accuracy
±1%
±0.1%
Pulse duration / timing
accuracy (excluding
pacing)
±1ms
±0.2ms
Pacing pulse width
accuracy
±5µs
±1µs
Pacing pulse amplitude
accuracy, range
±2mV pulse: ±1%
>2mV pulse: ±10%
Range: ±2mV to ±700mV
±2mV pulse: ±0.3%
100mV pulse: ±1% or
±5mV
Pacing pulse
characteristics
Rise/fall time 5µs
Overshoot <1%
Settling time <1%
Pacing pulse overshoot
(intentional)
Method A according to
IEC 60601-2-27
Resistor tolerance
±1%
±0.5%
Capacitor tolerance
±5%
±5%
Precision 1000:1 divider
(100KΩ:100Ω
)
±0.2%
±0.1%
Sample rate
5kHz ± 0.1%
5kHz ± 0.05% (50ppm)
DC offset (fixed, noise
free, sourced from
internal super capacitor)
300mV ± 1%
300mV ±0.1%
DC offset (variable, may
include up to 50µVpp
noise)
Setting ±1% or ±3mV
Setting ±1% or ±3mV
