Revision D
MAC
1200 resting ECG analysis system
9-7
2012250-095
Specifications: Basic Information
Signal Transmission
Patient Input to Recording
After lead formation and digitization, simultaneous transmission of all electrode
signals to the digital processing system; muscle filter, AC filter, pacing pulse
identification, automatic or manual sensitivity adjustment, automatic baseline
adjustment and drift compensation by means of the anti-drift system (A.D.S.) can be
enabled or disabled simultaneously for all channels; digital output of processed
signals via thermal-array printhead.
Low cut-off frequency (–3 dB limits) 0.08 Hz, equivalent to a time constant of
2.04 seconds
High cut-off frequency (3 dB limits) operating mode: 12 Lead, 6 Lead 150 Hz
(IEC/AHA) operating mode: Arrhy 100 Hz (IEC)
Signal sampling rate: 1000/s
Resolution, referred to the input 5 µV
Output rate to recorder 2000/s
For all leads, gain adjustment in four steps: 40-20-10-5 mm/mV
With active muscle filter (low-pass characteristic) 3-dB drop of the amplitude
frequency response at approximately 40 or 20 Hz
With active AC line filter detection and compensation of periodic 50 or 60 Hz
frequency components (depending on recorder model) attenuation >40 dB
Non-linear distortion below values specified in IEC and AHA
recommendations
Coincidence error limits between any two channels ±0.5 mm
Detection of pacer pulses in V2 or other V leads and marking in all channels for
signals referred to patient input
Duration >0.1 ms, amplitude >5 mV
Noise in the signal transmission path below values specified in IEC and AHA
requirements: <2.5 µV rms
Common-mode rejection for 50 or 60 Hz signals (depending on recorder model)
with AC filter switched on >140 dB
Summary of Contents for MAC 1200
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Page 11: ...Revision D MAC 1200 resting ECG analysis system 1 1 2012250 095 1 The Basics ...
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Page 19: ...Revision D MAC 1200 resting ECG analysis system 2 1 2012250 095 2 Functional Description ...
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Page 45: ...Revision D MAC 1200 resting ECG analysis system 3 1 2012250 095 3 System Test Function ...
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Page 69: ...Revision D MAC 1200 resting ECG analysis system 4 1 2012250 095 4 Repair Instructions ...
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Page 79: ...Revision D MAC 1200 resting ECG analysis system 5 1 2012250 095 5 Troubleshooting ...
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Page 85: ...Revision D MAC 1200 resting ECG analysis system 6 1 2012250 095 6 Adjustment Instructions ...
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Page 89: ...Revision D MAC 1200 resting ECG analysis system 7 1 2012250 095 7 Service and Maintenance ...
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Page 101: ...Revision D MAC 1200 resting ECG analysis system 8 1 2012250 095 8 Parts List ...
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Page 111: ...Revision D MAC 1200 resting ECG analysis system 9 1 2012250 095 9 Specifications ...
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Page 123: ...Revision D MAC 1200 resting ECG analysis system 10 1 2012250 095 10 Drawings ...
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