Leakage Current Measurement; Sensitivity Examination And Dc Tolerance Checking - Innomed Medical Heart Screen 60G Service Manual

Innomed Medical

8.3.1.2 Leakage current measurement

Leakage current measurement during operation with 253 V examination voltage.
Measurement place
Between the mains pins and the protective ground
Between the mains pins and the patient connection
Between the mains pins and the PC SIO connection
Between the mains pins and the oxymeter connection
Leakage current measurement in case of 1 error with 253 V examination voltage.
Measurement place
Between the mains pins and the protective ground
Between the mains pins and the patient connection
Between the mains pins and the PC SIO connection
Between the charging adapter connection and the patient connection
Between the charging adapter connection and the SIO connection

8.3.2 Sensitivity examination and DC tolerance checking

Apply +DC signal according to the table from a ground independent generator to the amplifier's input (2 mVpp/10Hz
sine). DC must be +320,-320 mV. Set amplifier sensitivity to *1 and monitor the lead groups. Start on-line printing
with 50 speed and measure the signal amplitude on the printout.
a. In case of DC= +320 mV
The signal's amplitude on the examined lead must be 20 mm +/- 3 %.
L
R
F
V1
V2
V3
V4
V5
V6
b. In case of DC= -320 mV
The signal's amplitude on the examined lead must be 20 mm +/- 3 %.
L
R
F
V1
V2
V3
V4
V5
V6
2014.01.09
Heart Screen 60G-80G-L
P1 P2
all other
all other
all other
all other
all other
all other
all other
all other
all other
P1 P2
all other
all other
all other
all other
all other
all other
all other
all other
all other
Examined lead
I
II
III
V1
V2
V3
V4
V5
V6
Examined lead
I
II
III
V1
V2
V3
V4
V5
V6
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Service manual
Allowed value / CA /
50
10
10
10
Allowed value / CA /
100
10
10
10
10