Ecg Calibration; Automatic Ecg Gain Adjustment; Baseline; Anti-Drift System (Ads) (Cubic Spline) - GE MAC 1200 Service Manual

ECG Calibration

Automatic ECG Gain Adjustment

Baseline

Anti-Drift System (ADS) (Cubic Spline)

ECG Storage

9-8
Specifications: Basic Information
Automatic recording of a defined voltage step, valid for all channels.
 Calibration voltage, referred to ECG signal input: 1 mV
Calibration pulse width on recording depends on paper speed
25 mm/s: 5 mm
50 mm/s: 10 mm
5 mm/s: 1 mm
The gain automatically adapts to the incoming signal. The maximum amplitude of
the lead group or of all leads determines the gain setting.

Automatic adjustment range: 5 to 40 mm/mV

Amplitude range: (6 channels) 18 to 31 mm
Automatic adjustment of the baseline to the optimal recording range, in dependence
of the signal amplitude.
Automatic compensation of baseline fluctuations caused by polarization voltage
fluctuations at the lead electrodes (delay in recording: 4.2 seconds).
In 12 Lead Mode, storage of up to 40 ECGs.

Stored ECGs can be deleted (individually or all in one pass), printed,
transferred, and patient data can be edited.
 When memory is full, user is informed of the possible actions.
MAC 1200 resting ECG analysis system
2012250-095
Revision D