Checking Frequency Response - Innomed Medical Hear Screen 112C-1 Service Manual

Innomed Medical

6.2.5 Checking frequency response

Apply +DC signal onto the amplifier's input (2000 +/-0.5% µVpp / 150 Hz sine) from a ground independent
generator according to the table. DC must be +320, -320 mV.
The filter must be off.
Connect the patient cable according to the following tables and with the channel selector start the channels one-
by-one, and measure the signal amplitude or during 50 mm/sec *1 printing.
a/ In case of DC = -320 mV
The signal's amplitude on the examined lead must be min. 1400 µV.
P1
L
R
V1
V2
V3
V4
V5
V6
b. In case of DC = -320 mV
The signal's amplitude on the examined lead must be min. 1400 µV.
P1
L
R
V1
V2
V3
V4
V5
V6
Heart Screen 112C-1
P2 Examined lead
all other I
all other II
all other V1
all other V2
all other V3
all other V4
all other V5
all other V6
P2 Examined lead
all other I
all other II
all other V1
all other V2
all other V3
all other V4
all other V5
all other V6
Measured amplitude
Measured amplitude
20/47
Service manual
D-7443-1-C