RGB Omicrom FT, Service Manual

Page: 18 / 116

OMICROM FT
SERVICE MANUAL
21 September 1998
2.11
Electrocardiogram signal verification.
Activate at the monitor the ECG signal and select a scale of 2 mV. Connect the
ECG simulator (Lionheart 3) to the Omicrom FT using the standard cable.
Signal filter checking:
a) Select at simulator a 2 Hz square waveform with an amplitude of 1 mV
and check that at monitor display the peak amplitude is 50% of
monitoring area (all ECG modes).
b) Select at simulator a 4 Hz sinusoidal waveform with an amplitude of 1
mV and check that at monitor display the peak amplitude is 50% of
monitoring area (all ECG modes).
c) Select at simulator a 10 Hz sinusoidal waveform with an amplitude of 1
mV and check that at monitor display the peak amplitude is 50% of
monitoring area (all ECG modes).
d) Select at simulator a 0.5 Hz sinusoidal waveform. Select at the Omicrom
FT the Diagnostic ECG mode and check that at monitor display the peak
amplitude is 50% of monitoring area. Select at the Omicrom FT the
Monitor or OR ECG mode and check that at monitor display the peak
amplitude is 25% of monitoring area.
e) Select at simulator a 50 Hz sinusoidal waveform (or 60 Hz depending on
AC mains supply frequency) with an amplitude of 1 mV and check that at
monitor display a flat line appears (all ECG modes).
ECG signal verification:
a) Select at simulator an ECG waveform with and amplitude of 1 mV and a
frequency of 80 bpm and check that at monitor display the QRS
amplitude is 50% of monitoring area (all ECG modes).
QRS detection:
a) Select at simulator QRS detection signal of 0,5 mV, 70 ms and 80 bpm
and check that the heart rate showed at monitor display is correct (all
ECG modes).
b) Select at simulator QRS detection signal of 0,5 mV, 40 ms and 80 bpm.
Select at Omicrom FT as Patient type neonates and check that the heart
rate showed at monitor display is correct (all ECG modes).
c) Select at simulator QRS detection signal of 0,15 mV, 100 ms and 80
bpm and check that monitor does not detect any QRS (all ECG modes).
Signal gain:
a) Select at simulator an ECG waveform of 1mV and 80 bpm.
b) Select at monitor an ECG scale of 4 mV.
c) Check that the amplitude of the waveform at the monitor display is 25%
of monitoring area.
d) Select at the monitor an ECG scale of 1 mV.
e) Check that the amplitude of the waveform at the monitor display is 100%
of monitoring area.
Lead selection.
a) Select at simulator an ECG waveform of 1mV and 80 bpm.