INSTRUCTION MANUAL
- 1 -
HCSMD400
1 Introduction
1.1 Brief Introduction
Thank you for purchasing the HCSMD400 pulse oximeter. The main functions of the device
include SpO
2
PR and PI (Pulse Amplitude Index) measurements, visual and audible alarm,
data storage, review and transmission, etc. Please read this manual carefully before using
the device.
Notes:
1. The illustrations applied in the manual may differ slightly from the actual device.
2. The specifications are subject to change without prior notice.
3. The device is designed of handheld structure and please be sure not to turn upside down
when using it.
1.2 Intended Use
The HCSMD400 pulse oximeter is intended for continuous monitoring, spot-checking of
oxygen saturation (SpO
2
) and pulse rate (PR) of single adult, adolescent, child and infant
patients in hospitals and clinics.
1.3 Measurement Principle
Principle of the oximeter is as follows: A mathematical formula is established making use
of Lambert Beer Law according to Spectrum Absorption Characteristics of Reductive
hemoglobin(RHb) and Oxyhemoglobin (HbO
2
) in red and near-infrared zones. Operation
principle of the instrument: Photoelectric Oxyhemoglobin Inspection Technology is adopted
in accordance with Capacity Pulse Scanning and Recording Technology, so that two beams
of different wavelength of lights (660nm red and 905nm near infrared light) can be focused
onto a human nail tip through a clamping finger-type sensor. A measured signal obtained by a
photosensitive element, will be shown on the oximeter’s display through process in electronic
circuits and microprocessor.
Diagram of Operation Principle
1. Red and Infrared-ray Emission Tube
2. Red and Infrared-ray Receipt Tube
1.4 Safety Information
Conception of Warning, Caution and Note
The Warning, Caution and Note at this document are special information in favor of user’s
operation.
Warning - Indicates a potential hazard or unsafe practice that, if not avoided, will result in
death or serious injury.
Caution - Indicates a potential hazard or unsafe practice that, if not avoided, could result in
minor personal injury or product/property damage.
Note - Provides application tips or other useful information to ensure that you get the most
from your product.
