Warranty – support@gurinproducts.com
Instructions to User
Dear Users, thank you very much for purchasing our product.
The Manual is written for the current Pulse Oximeter. In case of modifications and software upgrades, the
information contained in this document is subject to change without notice.
The Manual describes, in accordance with the Pulse Oximeter's features and requirements, main structure,
functions, specifications, correct methods for transportation, installation, usage, operation, repair, maintenance
and storage, etc. as well as the safety procedures to protect both the user and equipment. Refer to the respective
chapters for details.
Please read the Manual very carefully before using this equipment. These instructions describe the operating
procedures to be followed strictly; failure to follow these instructions can cause measuring abnormality,
equipment damage and personal injury. The manufacturer is NOT responsible for the safety, reliability and
performance issues and any monitoring abnormality, personal injury and equipment damage due to user's
negligence of the operating instructions. The manufacturer's warranty service does not cover such faults.
Owing to forthcoming renovation(s), the specific products you received may not be totally in accordance with
the description of this User Manual. We would sincerely regret for that.
This product is a pulse oximeter and can be used repeatedly. Its’ useful life is 3 years.
WARNING:
An uncomfortable or painful feeling may appear if using the device ceaselessly, especially for
microcirculation barrier users. It is recommended that the sensor should not be applied to the same
finger for over 2 hours.
For individual users, there should be a more prudent inspecting in the placing process. The device can
not be clipped on the edema and tender tissue.
The light (the infrared is invisible) emitted from the device is harmful to the eyes, so the user and/or
the maintenance persons, can not stare at the light.
Testee can not use enamel or other makeup.
Testee’s fingernail cannot be too long.
This device is not intended to diagnose or treat any medical condition or disease. It is intended for
non-medical use in healthy people to monitor their pulse and blood oxygen levels during sports and/or
aviation only.
The User Manual is published by our company. All rights reserved.
1 Safety
1.1 Instructions for Safe Operations
Check the main unit and all accessories periodically to make sure that there is no visible damage that may
affect the user’s safety and monitoring performance about cables and transducers. It is recommended that
the device should be inspected once a week at least. When there is obvious damage, stop using the monitor.
Necessary maintenance must be performed by qualified service engineers ONLY. Users are not permitted to
maintain it by themselves.
The oximeter cannot be used together with devices not specified in the User's Manual. Only accessories that
are provided or recommended by the manufacture can be used with this device.
This product is calibrated before leaving the factory.
1.2 Warnings
Explosive hazard—DO NOT use the oximeter in an environment with flammable gas such as some ignitable
anesthetic agents.
DO NOT use the oximeter while the testee is being measured by MRI and/or CT.
A person who is allergic to rubber cannot use this device.
The disposal of scrap instruments and their accessories and packings (including batteries, plastic bags, foam
and paper boxes) should follow local laws and regulations.
Please check the packing before use to make sure the device and accessories are totally in accordance with
the packing list, or else the device may have the possibility of working abnormally.
Please don't measure this device with function test paper for the device's related information.
1.3 Attentions
Keep the oximeter away from dust, vibration, corrosive substances, explosive materials, high temperature
and moisture.
If the oximeter gets wet, please stop operating it.
When it is carried from a cold environment to a warm or humid environment, please do not use it
immediately.
DO NOT operate buttons on front panel with sharp materials.
High temperature or high pressure steam disinfection of the oximeter is not permitted. Refer to User Manual
in the relative chapter for instructions of cleaning and disinfection.
Do not have the oximeter submerged in liquid. When it needs cleaning, please wipe its surface with medical
alcohol by soft material. Do not spray any liquid on the device directly.
When cleaning the device with water, the temperature should be lower than 60°C/140°F.
As to the fingers which are too thin or too cold, it would probably affect the normal measure of the users'
SpO
2
and pulse rate; please clip the thick finger such as thumb and middle finger deeply enough into the
probe.
Do not use the device on infant or neonatal users.
The product is suitable for children above four years old and adults (Weight should be between 15kg/33lb to
110kg/242lb).
The device may not work for all users. If you are unable to achieve stable readings, discontinue use.
The update period of data is less than 5 seconds, which will vary according to different individual pulse rate.
The waveform is normalized. Please read the measured value when the waveform on screen is equably and
steady-going, Here this measured value is optimal value. And the waveform at the moment is the standard
one.
If some abnormal conditions appear on the screen during the test process, pull out the finger and reinsert to
restore normal use.
The device has normal useful life of three years since the first electrified use.
The hanging rope attached to the product is made from Non-allergenic material; if particular group are
sensitive to the hanging rope, stop using it. In addition, pay attention to the use of the hanging rope; do not
wear it around the neck to avoid harm to the user.
The instrument does not have a low-voltage alarm function, it only shows the low-voltage; please change
the battery when the battery energy is used up.
The instrument does not have an alarm function. Do not use the device in situations where alarms are
required.
Batteries must be removed if the device is going to be stored for more than one month, or else batteries may
leak.
A flexible circuit connects the two parts of the device. Do not twist or pull on the connection.
2 Overview
The pulse oxygen saturation is the percentage of HbO
2
out of the total Hb in the blood, so-called the O
2
concentration in the blood. It is an important bio-parameter for respiration. For the purpose of measuring the SpO
2
more easily and accurately, our company developed the Pulse Oximeter. At the same time, the device can measure
the pulse rate
2.1 Classification:
Class II b, (MDD93/42/EEC IX Rule 10)
2.2 Features
Operation of the product is simple and convenient.
The product is small in volume, light in weight (total weight is about 50g including batteries) and
convenient in carrying.
Power consumption of the product is low, and the two originally equipped AAA batteries can be operated
continuously for 20 hours.
The product will automatically be powered off when no signal is in the product within 5 seconds.
2.3 Major Applications and Scope of Application
This device is intended for non-medical use in healthy people to monitor their pulse and blood oxygen levels for
sports and/or aviation only. Finger should not be moving, it should be stationary while using the oximeter,
otherwise it will give inaccurate results. It is suitable for users between 15 to 60 years old. Do not use it for
continuous monitoring.
2.4 Environment Requirements
Storage Environment
a) Temperature :-40°C~+60°C
b) Relative humidity :≤95%
c) Atmospheric pressure :500hPa~1060hPa
Operating Environment
a) Temperature :10°C ~40°C
b) Relative Humidity :≤75%
c) Atmospheric pressure :700hPa~1060hPa
3 Principle and Caution
3.1 Principle of Measurement
Principle of the Oximeter is as follows: An experience formula of data process is established taking use of
Lambert Beer Law according to Spectrum Absorption Characteristics of Reductive Hemoglobin (Hb) and
Oxyhemoglobin (HbO
2
) in glow & near-infrared zones. Operation principle of the instrument is: Photoelectric
Oxyhemoglobin Inspection Technology is adopted in accordance with Capacity Pulse Scanning & Recording
Technology, so that two beams of different wavelength of lights can be focused onto a human nail tip through
perspective clamp finger-type sensor. A measured signal can then be obtained by a photosensitive element,
information acquired through which will be shown on screen through treatment in electronic circuits and
microprocessor.
Figure 1 Operating principle
3.2 Caution
1.
The finger should be placed properly (see the attached illustration of this manual ,Figure 5), or else it may
cause inaccurate measurement.
2.
The SpO
2
sensor and photoelectric receiving tube should be arranged in a way with the subject’s arteriole in a
position there between
．
3.
Make sure the optical path is free from any optical obstacles like rubberized fabric.
4.
Excessive ambient light may affect the measuring result. It includes fluorescent lamp, dual ruby light, infrared
heater, direct sunlight, etc.
5.
Strenuous action of the subject or extreme electrosurgical interference may also affect the accuracy.
6.
Testee cannot use enamel or other makeup.
7.
Due to the sensitivity of the pulse oximeter, you should keep your finger stationary during measurement. It is
recommended that you use this instrument for measurement before or after sports. Do not use for continuous
monitoring.
4 Technical Specifications
1)
Display Format:
OLED Display;
SpO
2
Measuring Range:
0% - 100%;
Pulse Rate Measuring Range:
30 bpm - 250 bpm;
Pulse Wave Display:
columniation display and the waveform display.
2)
Power Requirements:
2 ×1.5V AAA alkaline battery (or using rechargeable battery instead), adaptable
range: 2.6V~3.6V.
3)
Power Consumption:
Smaller than 30mA.
4)
Resolution:
1% for SpO
2
and 1 bpm for Pulse Rate.
5)
Measurement Accuracy:
±2% in stage of 70%-100% SpO
2
, and meaningless when stage being smaller
than 70%. ±2 bpm or±2% (select larger) for Pulse Rate.
6)
Measurement Performance in Weak Filling Condition:
SpO
2
and pulse rate can be shown correctly when
pulse-filling ratio is 0.4%. SpO
2
error is ±4%, pulse rate error is ±2 bpm or ±2% (select larger).
7)
Resistance to surrounding light:
The deviation between the value measured in the condition of man-made
light or indoor natural light and that of darkroom is less than ±1%.
8)
It is equipped with a function switch. The Oximeter can be powered off in case no finger is in the Oximeter
within 5 seconds.
9)
Optical Sensor
Red light (wavelength is 660nm, 6.65mW)
Infrared (wavelength is 880nm, 6.75mW)
5 Accessories
One hanging rope and carrying case
Two batteries (optional);
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