Marquette Hellige GmbH MAC 1100/1200 V 1.1 Page 54
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Record one page in the “6-lead” operating mode. The following annotations must be
present:
- Heart rate (top right)
- Lower status line - date and time
- recording speed
- sensitivity
- active filter, e.g., 50/60 Hz, 40/20 Hz, ADS
- frequency range of the recording
The heart rate of 60 bpm +/- 2 bpm appears on the display and is printed out on the
recording.
Activate the square-wave function on the ECG transmitter at 1 mV.
Using the lead scrolling key select lead II. The square-wave pulse trace must
correspond in amplitude with the displayed 1 mV reference pulse (applicable to
named transmitter only).
Switch back to ECG signal on the ECG transmitter.
Start the recording in manual mode.
Increase the heart rate to 200 bpm on the ECG transmitter. The acoustic warning
signal must sound for about 1s. Reduce the heart rate back to 60 bpm, the warning
signal no longer sounds.
7.1.2.8 Pacemaker identification test
Make the following settings on the multifunction simulator:
- pace setting
- pace amplitude 6 mV
- pace duration 0.2 ms
Adjust “6-lead mode” on MAC 1200 device to be tested and select lead groups I, II
and III.
Start the recording. The pace pulses must be visible as needles on the recording
output.
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