Huntleigh Smartsigns Liteplus, Instructions For Use Manual, Page: 25 / 92

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6.2 Performing Power On and Self-Test (POST)
CAUTION: The Smartsigns ® Liteplus automatically starts the Power-On-Self-Test,
which tests the monitor circuitry and functions. During POST (immediately after
power-up), con
fi rm that all display segments and indicators are illuminated and the
power on beep tone sounds.
CAUTION: If any indicator or display element does not light, or the speaker does
not sound, do not use the monitor. Contact quali
fi ed service personnel or
Huntleigh Healthcare Ltd Technical Service Department.
1. Turn on the monitor ON by pressing the Power button.
2. The monitor automatically starts the Power On Self Test (POST), which tests
monitor circuitry and functions.
3. Ensure the monitor sounds the power-on beep tones, and all displays and
indicators are illuminated for 3 seconds.
CAUTION: The power-on beep tones will not be heard if Sound mode is set to 3
(Mute) via Service mode. It may cause the hazard that speaker failure cannot be
detected during the POST. This hazard must be ackknowledged to the operator
before sound mode is set to 3 (Mute) in risk control point of view
SYS
DIA
MAP
%SpO
2
/min
°F
°C
M
mmHg
kPa
BP
1
Figure 7. Power On Self Test
4. If the Smartsigns
®
Liteplus detects an internal problem during POST, the monitor
will display an error code. Contact quali fi ed service personnel or Huntleigh
Healthcare Ltd Technical Services Department.
5. Upon successful completion of the POST, the monitor enters Normal mode.
Using the Monitor