User Manual for Handheld Pulse Oximeter
23
8 Troubleshooting
Trouble
Possible Reason
Solution
The SpO
2
and Pulse
Rate
display
instable
1. The finger is not
placed far enough
inside.
2. The finger is
shaking or the
patient is moving.
1. Place the finger
correctly inside and try
again.
2. Let the patient keep
calm.
Can not
turn on
the device
1. The batteries are
drained or almost
drained.
2. The batteries are
not inserted
properly.
3. The device is
malfunctioning.
1. Change batteries.
2. Reinstall batteries.
3. Please contact the
local service center.
No
Display
1. The device will
power off
automatically when
there is no signal
and no operation for
1 minute.
2. The batteries are
almost drained.
1. Normal.
2. Change batteries.