GE MAC 800, Operator'S Manual

Page: 54 / 154

Recording a Resting ECG
Option Description
Patient Data Opens the patient data entry window.
Sweep Speed Changes the speed of the waveform on the
display and printout. Changing the speed
also changes the speed at which the wiper
bar moves across the display.
Measurement is in millimeter per second
(mm/s) and includes the following options:
• 25 mm/s
• 50 mm/s
• 12.5 mm/s - 5 mm/s
When the option includes two speeds (12.5
mm/s - 5 mm/s), the first speed is for the
display and the second speed is for the
printout.
Gain Changes the magnitude of the ECG signal on
the display or in the report. Measurement
is in millimeter per millivolt (mm/mV) and
includes the following options:
• 5 mm/mV
• 10 mm/mV
• 20 mm/mV
• 40 mm/mV
• 2.5 mm/mV
• Automatic
The larger the selected measurement, the
larger the waveform appears. Only the
appearance of the waveform changes; signal
strength is not affected.
NOTE:
If Automatic is selected, the system
calculates the best gain based on the
peak-to-peak amplitudes of all displayed
leads and the selected display format.
54 MAC™ 800 2060026-001C