Setting The Gain; Setting The Filter Mode; Setting The Calculation Channel - Fazzini FM5000C User Manual

15.6.3 Setting the Gain

Gain is used to adjust the size of ECG waveform.Available gains include× 0.25 × 0.5 × 1, × 2 and auto.Auto
mode automatically adjusts the gain by the monitor. The right side of each ECG waveform channel has given
1mv scale. The height of the 1mv scale is proportional to the amplitude.
(a) Click ECG waveform and [ECG WAVE] menu will be displayed;
(b) Set [GAIN] to [× 0.25], [× 0.5], [× 1], [× 2] or[AUTO]
Attention

When the input signal is too large, the peak may be truncated. The user can refer to the
actual waveform to manually change the gain of the ECG waveform in order to avoid the
incomplete waveform display.

15.6.4 Setting the Filter Mode

There are four filter modes: diagnostic mode, monitor mode, surgical mode and ST mode. The diagnostic mode
shows unfiltered ECG wave; the monitor modecan filter out the artifacts which may lead to false alarms.
The surgical mode in the operating room can reduce the artifact and interference from electrical surgical
unit. Filter mode is displayedabove the first ECG waveform.
ST filter mode is user-friendly to conduct more accurate ST segment measurements. Frequency response
range of this mode is 0.05Hz-40Hz.The good scalability of low frequency ensures undistorted interpretation
of patient's ST segment, and can effectively filter high-frequency interference signals over 40Hzincluding
power frequency interference. In this mode the user can more accurately acquire the measured ST segment
value by adjusting the position of the ST segment analysis points.
(a) Click ECG waveform and [ECG WAVE] menu will be displayed;
(b) Set [FILTER] to [DIA] (diagnostic), [MON] (monitor), [SUR] (surgical) or [ST];
Warning

Only under diagnostic mode will the actual ECG signal will be provided. ECG waveforms
have varying degrees of distortion under monitor mode and surgical mode. At this time, the
system can only provide the basic status of the ECG signal, which may have a great impact on
the result of the ST segment analysis. Under surgical mode, the arrhythmia analysis result is
also affected to some degree. So we recommended that when the interference is small, try to
use the diagnostic mode to monitor the patient.

15.6.5 Setting the Calculation Channel

Heart rate calculation channel means the waveform from which lead is used to calculate heart rate.
Calculation channel options vary with different lead types:
For 3-lead ECG cable, the default calculation channel islead I.
For 5-lead ECG cable,the available calculation channel includes I, II and V.
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