natus Nicolet Viking EDX, User Manual

Page: 31 / 94

January 30, 2020 2-11
System Basics
H
The keypad (H below ) is multifunctional.
Enters numerical values when in a numerical entry mode (e.g., distance).
Selects assigned function when not in a numerical entry mode.
Stimulus duration
Numbers 4 and 7
Increase stimulus duration.
Decrease stimulus duration.
Waveform select
Numbers 5 and 8
Select the next waveform.
Select the previous waveform.
Marker (Advance)
Number 9
Advance to the next marker.
Trigger (Activate)
Number 6
Activate a trigger.
Fn1
Number 1 Programmable via the Hardware Controls Setup menu, per test type.
Fn2
Number 2 Programmable via the Hardware Controls Setup menu, per test type.
Impedance check
Number 3 Start/end electrode impedance check.
Do not measure the impedance of needle electrodes with
needles positioned in the patient or with electrodes in contact with
your patient’s cornea to guard against patient injury.
Measuring the impedance of a single fiber needle
electrode may result in needle failure.
Word reports
Number 0 Activates/deactivates Word reports when not in a numeric entry mode.
Screen copy Prints the screen display when in any exam mode.
Enter Enters the numeric data you enter into the field or activates the selected
function.
I Delete Erases the selected waveforms on the Record screen display. Deletes last
character or selected entry.