User and Service Manual Xltek
®
EMU40EX™
51
8. Set the LFF filter to 0.1, the HFF filter to OFF, and the Notch filter to OFF.
9. Verify that no sine wave is greater than 50 microvolts peak-to-peak. 50 microvolts represents gain
match to 1%.
NOTE: For more information on setting up a montage, consult the online Help.
Channel Test
While in Acquisition mode, a channel test may be performed to check whether a signal is being properly
processed from the amplifier to the display. A channel test applies a test signal to all channels. This
allows you to examine the waveforms on the screen to see if all channels are working.
NOTE: A channel test does not validate the connection from the patient electrode to the
amplifier input.
To Run a Channel Test
1. Choose Controls > Channel Test Signal. The Channel Test toolbar appears above the
waveform window.
2. Use the Channel Test toolbar to select the desired wave shape, amplitude, and frequency.
3. To stop the channel test and save the current settings, click Done.
Channel Test Signal Control
The Channel Test Signal control turns on the channel test signal according to the last settings saved and
displays a Channel Test Signal toolbar. The Channel Test Signal toolbar is located above the trace
display. The toolbar has controls for shape, amplitude and frequency of the test signal.
Figure 15 - Channel Test Toolbar
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