GE Medical Systems MAC 1200, Operator'S Manual, Page: 116 / 180

9-10 MAC 1200 Revision B
2012250-022
System Setup: 6 Lead Mode
The cursor will move to the position for entry of the lead in channel 1.
Follow these steps, if you wish to record lead aVR in channel 1, for
instance.
1. Enter AVR and confirm the entry with .
The cursor moves to the position for entry of the lead designation.
AVR appears there as well.
2. To enter another designation, you can overwrite the default name (4
characters maximum).
3. Confirm your entry with . Repeat the above steps for channel 2,
etc.
You can write over “SEQ. NO. 4” if you wish to enter another name for
the report sequence.
Gain
The unit will automatically determine the appropriate gain setting for
the 6 simultaneous leads (“auto”, 5, [10], 20, 40 mm/mV; with “*auto”).
Speed
Changes the paper speed (Default: [25 mm/s]).
Muscle Filter/AC Filter
Elimination of muscle artifact and AC line interference.
„ Muscle filter: [no], AC line filter: [yes]
Muscle Filter Frequency
Cut-off frequency of the muscle filter: [40 Hz], 20 Hz.
The frequency range is indicated in the lower margin of the recording
strip.
„ 0.08 – 40 Hz (40-Hz muscle filter enabled)
„ 0.08 – 20 Hz (20-Hz muscle filter enabled)
„ 0.08 – 150 Hz (muscle filter off).