Marquette Hellige GmbH MAC 1100/1200 V 1.1 Page 53
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7.1.2.4 Test for recording speeds 25 and 50 mm/s
- Carry out the “Motor test ” as detailed in Sections 3.5, respectively.
- The feed speed deviations should be less than 3%.
7.1.2.5 Device Test result check
- Output “Test results ” as detailed in Sections 3.6, respectively.
- Main parameters: - all memory stores free from error?
- ASIC test O.K?
- Sample rate 1000?
- Selected time constants: 2.04 s (or 4.08 s)?
- Printhead voltage > 18V, battery charge O.K?
- Printout clearly legible and without any lapses or interference?
7.1.2.6 RS-232 interface test
Carry out the “Interface test ” test item “(1) Transmitting and receiving”, as detailed in
Section 3.9, respectively.
7.1.2.7 Analysis of the ECG signals and HR value
Carry out the following settings on the ECG simulator:
- Amplitude 1 mV
- Heart rate (RATE) 60 bpm
Connect the electrode leads as indicated below:
R, red (or RA) -----> RA
L, yellow (or LA) -----> LA
F, green (or LL) -----> LL
N, black (or RL) -----> RL
C1, white/red (or V1 ) -----> V1
: : :
:::
C6, white/violet (or V6) -----> V6
Switch in 6 lead operating mode and start recording by pressing the Start key.
By pressing the lead scrolling key, check whether all leads are being recorded.
The ECG traces must be noise-free.
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