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Chapter 4: Operation
The information in this chapter assumes that Rad-5/5v is set up and ready for use. This
chapter provides necessary information for proper operation of the device. Do not operate
Rad-5/5v without completely reading and understanding these instructions.
Basic Operation
The following information covers basic operation of the Rad-5 and Rad-5v.
Power Rad-5/5v On and Off
To Power ON Rad-5/5v
1. Press the Power On/Off Button.
2. The LEDs illuminate briefly, the speaker beeps and the device powers on.
To Power OFF Rad-5/5v
1. Press and hold the Power On/Off Button.
2. The Rad-5/5v will power down and turn off.
LED Indicators
For LED indicator descriptions and locations, see Front View on page 19. To modify the
brightness of the LEDs, see Menu Level 4 - LED Brightness and Factory Defaults on page 36.
Signal SIQ and Pulse Bar
The Rad-5/5v indicates signal quality and pulse on a 10-bar LED indicator. See Front View
on page 19. The height of the indicator provides an assessment of the confidence in the
SpO
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measurement displayed (signal quality) and the rhythm of the indicator displays the
timing of the pulse.
Perfusion Index
The Rad-5/5v indicates perfusion on a 10-bar LED Perfusion Index indicator. See Front View
page 19. The lower two segments of the bar turn red when the amplitude of the arterial
pulsations are very low (low perfusion).
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