Creative PC-68B User Manual

User Manual for Wrist Oximeter

I

Instructions to User

PC-68B Wrist Oximeter is a precision measuring device,
please read the manual very carefully before using this
device. Failure to follow these instructions may cause
measur ing abnormality or damage to the oximeter.

No part of this manua l may be phot ocopied, reprodu ced or
translated into another language without the prior written
consent. Shenzhen Creative Industry Co., Ltd. reserves the
right to improve and amend it at any time without prior
notice.

Version of This Manual: Ver 1.4
Revised date: July 26, 2012
All rights reser ved.

3502-2290033

User Manual for Wrist Oximeter

II

Notes:

 The contents contained in this manual are subject to

change without prior notice.

 Information furnished by Creative is believed to be

accurate and reliable. However, no responsibility is
assumed by us for its use, or any infringements of
patents or other rights of third parties that may result
from its use.

Instructions for Safe Operations



Check the device to make sure that there is no

visible damage that may affect user’s safety and
measurement performance. When there is obvious
damage, stop using the device.



Necessary servicing must be performed by

qualified service engineers ONLY. Users are not
permitted to mainta in it by themselves.



The oximeter cannot be used together with the

devi c es not s pecified in U ser M anual .

Cautions

 Explosive hazard—DO NOT use the oximeter in

environment with inflammable gas such as some
ignitable anesthetic agents.

 DO NOT u se th e oximeter while the testee is under

MRI or CT scanning.

User Manual for Wrist Oximeter

III

Warnings

 For individual patients, 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 light is invisible) emitted

fr o m the se nso r is harmful to the eyes, so t he user or
even the service engineer should not stare at the
ligh t emitting comp onents.

 To dispose the device, the local law should be

followed.

Attentions

 Keep the oximeter away from dust, vibration,

corrosive substances, explosive materials, high
temperature and moisture.

 The device should be kept out of the reach of

children.

 If the oximeter gets wet, please stop operating it.

When it is carried from cold environment to warm
and humid environment, please do not use it
immediately.

 DO NOT operate the button on front panel with

sharp materials.

User Manual for Wrist Oximeter

IV

 High temperature or high pressure steam

disinfection to the oximeter is not permitted. Refer
to related chapter for instructions of cleaning and
disinfection.

Declaration of Conformity:

The manufacturer hereby declares that this device complies
with the following standards:

IEC 6060 1-1
ISO 9919
and follows the provisions of the council directive

MDD93/42/EEC.

User Manual for Wrist Oximeter

V

Table of Contents

1 OVERVIEW .................................................................. 1

1.1 Appe aran ce .............................................................. 1

1.2 N a me and Mod el ...................................................... 2

1.3 Conformation ........................................................... 3

1.4 Fe at ures .................................................................... 3

1.5 Intended Use ............................................................ 4

1.6 Key of Sy mb ols ........................................................ 5

2 BAT TERY INSTALLATION........................................ 6

3 OPERATION ................................................................. 7

3.1 M e a su r ing Operat io n .............................................. 7

3.2 M e nu O pe ratio n .................................................... 15

3.3 Upload Data ........................................................... 21

3.4 Low Battery Indication ......................................... 22

4 ADDITIONAL ADV ICE FO R OPERATION............ 23

5 TECHNICAL SPECIFICATIONS ............................. 24

6 ACCESSORIES ........................................................... 27

7 REP AIR AND MAINTENANCE ............................... 28

7.1 Maintenance ........................................................... 28

7.2 C leaning and Di si nfect ing Instruction.................. 29

8 TROUBLESH OOTING .............................................. 30

9 APPENDIX .................................................................. 32

A Common Knowle dge for SpO

2

Measurement ........ 32

B Wrist band Installatio n and D i sasse mbly ................ 36

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1 Overview

1.1 Appearance

Figure 1 Front Vie w

1. LCD sc reen

2. Set key: shift display modes, confirm the

oper a tion etc.

3. Scroll key: short press: move display cursor, modify

parameter valu es et c.

Longtime press: choose display always on or not
which will be eff ective during measuring.

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Figure 2 Frontal Side View

4. Buzzer

5. Dat a in terf ac e

6. Wristband Underlay

Figure 3 Right Side View

7. SpO2 pro be receptacl e

1.2 Name and Model

Name: Wrist Oximeter
Model: PC-68B

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1.3 Conformation

It compr ises the main unit and SpO2 probe.

1.4 Features

Wrist Oximeter can be used to monitor pulse oxygen
saturation (SpO

2

) and pulse rate accurately. Simply put

your finger into sensor, SpO

2

value and pulse rate value

will be displayed on screen and stored in the device.

 It is lightweight, small in size and easy to carry;
 Color OLED display;
 Perfusion ind ex (PI) display is available;
 Automatic starts to measure SpO

2

and Pulse

Rate(PR);

 Real-time clock display and set;
 Audible & visible over-limit indication, high & low

limits are adjust able;

 It is convenient for you to monitor SpO

2

in long-term

while sleeping or at other daily activity.

 Rec ord in t erval can b e s e lected, up t o 48 0 hours d ata

memory;

 Applicable for longtime continuous monitoring;

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 PR trend curve and SpO2 trend curve view;
 Data storage and transmission to PC for view and

analysis(Optional);

 Smart battery power management with low battery

indication;

1. 5 Inte nded Use

This Wrist Oximeter is intended for measuring the pulse
rate and functional oxygen saturation (SpO

2

). It is

appli cable for long-ter m measu rement of adult’s SpO

2

and

pulse rate in home and clinics.

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1.6 Key of Symbols

Symbol

Description

%SpO

Pulse Oxygen Saturation

PI%

Perfu sion Index

PR

Pulse Rate

Pulse rate symbol

Low battery voltage

Symbol for display always on

Memor y full.

Seria l number

Date of manufacture

Aut ho rised representat ive in t he
Europe an community

Manu facturer (including address)
Wit h Type BF applied part

Warning

─

See User Manual

Disposal of this device according to

WEEE regu lations

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2 Battery Installation

Figu re 4 Batt ery Installation

1. Lift up the cloth covered on the battery cover. Then, use

your index finger and midd le finger t o press against the
battery cover. Meanwhile, slide it towards the side with
SpO

2

probe (as shown in Figure 4).

2. Refer to Fi gure 4, insert t wo AAA size batte ries int o the

battery compartment properly in the right direction.

3. Replace the cover.
Remark: After finishing battery installation, the oximeter

will automatically power on and display software version
number firstly.

Please take care when you insert the batteries, as the

improper insertion may make the device not work.

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3 Operation

3.1 Measuring Operat ion

1. Insert the external SpO2 probe connector into SpO2
probe rece ptacl e properly.

Figu re 5 Sp02 Probe Connection

2. Fix the oximete r on your left wrist (Figure 6);

3. Then, hold the probe with its opening towards your
index finger. The probe should be oriented in such a way
that the sensor side with a finger tip sign is positioned on
the top (Figure 6).

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Figure 6 Placement Demonstration

4. Next, insert your index finger into the probe until the
fingernail tip rests against the stop at the end of the probe
(Figure 7). Adjust the finger to be placed evenly on the
middle base of the sensor (make sure the finger is in the
right position). If the index finger cannot be positioned
correctly, or is not available, other finger can be used.

Figure 7

Finger tip sign

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Wrong Placement of the Probe:

Figure 8

5. The oximeter will automatically start measurement in 2
seconds. Then the defau lt screen will be disp layed (Fi gure
9A). User can read the valu es and view the waveform from
the display screen.

Figure 9 A Defau lt Screen

 “%SpO

2

”: SpO2 symbol; “99”: SpO2 value;

 “PR”: Pulse rate icon; “65”: Pulse rate value;
 “

”: Pulse beat sym bo l;

 “

”: Batte ry indicator;

 “

”: Puls e intensity bargraph.

 The waveform displayed in the lower area is SpO

2

plethysmogram.

Finger out Not deep enough

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Key Operations:

 Short time press “

■” key to switch display modes

circularly, dis pla y screen will be switched am ong the
screens as shown in Figure 9A, Figure 9C and Figure
9D.

 Longtime press “

▲” key: choose display always on

or not which will be effective during measuring. If
you choose display always on, the symbol for
“display always on” will appear on the screen as
shown in Figur e 9B.

 Short time press “

▲” key, the display screen can

shif t 180

Figure 9B

 “

”: Symbol for dis play always on, it indicat es that

the LCD screen is always on during meas urin g. If the
symbol is disappeared, it indicates that the LCD
screen will be off after a period of display time
during measuring for power saving.

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Figure 9C

 “PI%”: Perfusion index symbol;

Figure 9D Real Time Clock

 “12:30”: the current time;

Key Operations:

 Longtime press “

■ ” key, menu screen will be

disp layed, refer to section 3.2 for details;

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6. Prompt information

 During monitoring, if you haven’t inserted your

finge r into th e probe, “Finger out ” will b e p romp ted
on the screen.

 During monitoring, if the probe is not connected to

the oxi met er or the pr ob e is off, “No Si gn a l!” will b e
promp ted on the screen, as shown in Figur e 10.

Figure 10 No Signal

 During measuring, if the memory is full or the total

number of the records is 1024 pieces, the earliest
records will be overwritten and the icon “ ” will
appear on the screen for prompt, as shown in Figure

11.

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Figure 11 Memo r y Full

Note: It is suggested that the data shall be uploaded

to compu ter for saving, or the ear liest records will b e
overwritten.

W orking Mode

 The measurement will start automatically when the

finger is inserted into the soft rubber of the se nsor, so
the data recording (SpO

2

and PR values) starts
simultaneously as well. The display is as shown in
Figure 9A

 During measuring, if the display mod e is n ot display

always on (the symbol for “display always on” i s n ot
shown on s creen) and no key button operation for 1
minute, the LCD display will be blank for power
saving even when the measurement and data
recording are still undergoin g, but long time pressing

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any key will activate the display for viewing the
current measuring information again.

 If there is no signal to be detected (e.g. finger off) for

20 seconds, th e device wi ll be at idle state (i.e. blank
scr een and standby for measurement).

 When the device is at idle state, long time pressing

any key will act ivate th e LCD display for measuring
default screen, or once the finger is inserted in the
soft rubber of the sensor, the measurement will s tart
and LCD dis play will be activated as well.

Note: During measuring, there is a green-dot
flashing on the screen for indicating the
measurement and data recording are undergoing
when the display screen is blank, and if SpO2
or/and PR values exceed the preset limit, it will
active the display and the value exceeded limit
will flas h.

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3.2 Menu Operation

On display screen, longtime press “■” key menu screen
wil l be displayed on the sc reen, as shown in Fig ure 12.

Figure 12 Menu Screen

 Rec Interval: set the interval to record SpO

2

and

pul se r ate da ta;

 Alarm: set SpO

2

low limit and puls e rate high/low

limit;

 Time: set current time;
 Trend Review: view SpO

2

and pulse rate trend

graph ;

 Delete Data: delete all the records.

Operation In st r uctions:

 Short time press “

▲” key: shif t cursor circ ul a r l y;

 Short time press “

■” key: confirm the selection

and ent er into the corresponding screen;

 Longtime press “

■ ” key: back to the default

screen;

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3.2. 1 Record Interval Setting s

On menu screen, select “Rec Interval” and press “

■” key

to enter Record Interval Setting screen, as shown in Figure

13.

Figu re 13 Record Int erv al Sett in g

Operation In st r uctions:

 Short time press “

■” key: active the option;

 Short time press “

▲” key: select record interval;

three options: “1s”, “4s” and “8s;

 Short time press “

■” key: confirm the sele ction;

 Longtime press “

■” key: back to the menu screen;

Note: The len gth of data record is limited to 30 seconds
at least, and the maximal length for one record is also
limited to 60 hours (for 1 second interval) , 240 hours
(for 4 second interval) or 480 hours (for 8 second
interval).

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3.2. 2 O v e r-li mi t indication Settings

On m enu screen, select “Alarm Limit” and p ress “

■” key

to enter Alarm Limit Settings screen, as shown in Figure

14.

Figu re 14 Over-l i mit indic ation Settings

 SpO

2

Lo: set SpO2 low limit; Setting

range:85%~95%, default setting: 85%;

 PR Lo: set pulse rate low limit; Setting

ran ge:25bpm~99bpm , de fault sett ing: 50bpm;

 PR Hi: set pulse rate high limit; Setting range:

100bpm~250bpm, default setting: 120bpm;

 Alarm: enable/disable the audible & visual limit

indication function.

If SpO

2

value or/and PR value exceeds its/their preset
limits during measuring, the oximeter will beep and the
numerical value exceeded limit will flash. Pressing “

■”

key can suspend the cur rent beep sound.

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Operation In st r uctions:

 Short time press “

▲” key: shif t cursor circ ul a r l y;

 Short time press “

■” key: active the option;

 Short time press “

▲” key: increase numerical value

one time;

 Long tim e press “

▲” key: increase numerical values

continuously;

 Short time press “

■” key: confirm the sele ction;

 Longtime press “

■” key: back to the menu screen;

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3.2. 3 T im e Sett in gs

On menu screen, select “Time” and press “

■” key to ente r

Time Settings screen, as shown in Figure 15.

Figu re 15 Time Settings

 Date format: MM/DD/YYYY;
 Time format: hh:mm:ss;

Operation In st r uctions:

 Short time press “

▲” key: shif t cursor circ ul a r l y;

 Short time press “

■” key: active the option;

 Short time press “

▲” key: increase numerical value

one time;

 Longtime press “

▲” key: increase numerical value

continuously;

 Short time press “

■” key: confirm the modification;

 Longtime press “

■” key: back to the menu screen;

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3.2.4 Trend Review

On menu screen, sele ct “Trend Review” and press “

■” key

to enter Trend Review screen, as shown in Figure 1 6.

Figu re 16 Trend Re view Screen

 “03/06/2008”: date of th e measurement
 “11:20:35”: initial time of trend graph displayed

on th i s sc reen;

 “

■ ▲”: Page scroll (left/ right) symbol;

 Cur v es in the mid d le area:

Green curve: indicate pulse ra t e tr end curve;
Orange curve: indicate SpO

2

trend curve;

Operation In st r uctions:

 Short time press “

▲” key: Page scroll right;

 Short time press “

■” key: Page scroll left;

 Longtime press “

■” key: back to the menu screen;

Note: when the display screen is menu screen or its
submenu screen , the mea sur em ent will be interrupt ed.

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3.2.5 Delete Data

On menu screen, select “Delete Data” and press “■” key
to enter into Deletion Confirmation screen. Then, select
“Yes” with “▲” key(short time press), after short time
pressing “■” key, all the records will be deleted.

Figu re 17 Delete Recor ds

3.3 Upload Data

Before uploading the data to PC, p lease quit from the menu
screen if you are doing the setup or trend view operation.
When start uploading, connect the data cable between the
device and PC, do the following operation by the
instruction in “Oximeter Data Manager User Manual”,
then the data uploadi ng will be activated.

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3.4 Low Battery Indication

If “ ” occurs on the screen, it indicates ba tter y power
is not enough, please change batteries. If you keep on
using, after a while, when the batteries are exhausted,
“Low Battery!” indication will be displayed and the
oxime ter will be off in 5 seconds.

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4 Additional Advice for Operation

 The finge r should be put properly and correctly.
 Avoid shaking finger as possible as you can during

measuring;

 Do not put wet finger directly into sensor.
 Avoid placing the de vice on the same limb whic h is

wrapp ed with a cuff for blood pressure measur ement
or during venous infusion.

 Do not let anything block the emitting light from

device.

 Electrosurgical device interference may affect the

measuring accuracy.

 Using enamel or other makeup on the nai l may affect

the measuring accuracy.

 If the first reading appears with poor waveform

(irregular or n ot smooth), then the reading is unlikely
true, the more stable value is expected by waiting for
a while , or a restart is needed when necessary.

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5 Technical Specifications

A. Di splay mode ：Color OLED Display
B. Power supply requirement:

2 x LR03 (AAA) alkaline batteries
or Ni-MH rechargeable batteries

Supply voltage: 3.0VDC

Continues workin g time (display is off): 70hours

C. Operating curren t: ≤40mA
D. SpO

2

Parameter Specifications

T ransducer: dual-wavelength LED
Measur ement wavelength:

Red light: 663 nm, Infrared light: 890 nm.

Maxi mal optical outpu t power: less than 1.5mW
maxi mum average
Measuring range: 35~100%
Measur ing accuracy:
Not gre ater than 3% for SpO

2

range from 70% to 100%

*NOTE: A

rms

is defined as root-mean-square value of

deviation according to ISO 9919.

E. Pu lse Rate P arameter Speci f icatio n s

Measuring range: 30bpm~240bpm
Accuracy: ±2bpm or ±2% (whiche ver is greater)

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F. Preset limit s:

SpO

2

Low limit setting: 85%

Pulse Rate limit setting range:

Upper limit: 120bpm
Lower limit: 50bpm

G. Update rate:

6 sec onds moving average for SpO

2

an d 8 beats

average for Pulse Rate readings.

H. Perfusion Index Display

Range: 0.2%~20%

I. Performanc e u n der low perfusion con dition

The accuracy of SpO

2

and PR measurement still
meets the specification described above when the
modula tion amplitu de is as low as 0.6%.

J. Resistance to interference o f su r rounding light:

The difference between the SpO

2

value measured in
the condition of indoor natural light and that of
dar kroom is less than ±1%.

K. Resistance to 5 0Hz /60Hz interference:

SpO

2

and PR are precise which have been tested by

BIO-TEK pulse oximeter simulator.

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L. Dimensions: W 59mm×D 49mm×H 22mm
Net W eight: about 60g (not includi ng batteries)
M. Classification

The type of protection against electric shock:

Internally p owered equipment.

The degree of protection against electric shock:

Type B F applied part.

The degree of protection against harmful ingress
of liquids: Ordinary equipment without protection
against ingress of water.

Electro-Magnetic Compatibility: Group I, Class B

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6 Accessories

 A data cable (optional)
 Oximeter Dat a Manager software (optional)
 A Wristband
 A SpO

2

Probe

 Two batteries (AAA)
 A User Manua l
 Quality Certificate

Note: The accessories are subject to change. See the
Packing List for detailed items and quantity.

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7 Repair and Maintenance

7.1 Maintenance

The service life (not a warranty) of this device is 5 years.
In order to ensure its long service life, please pay attention
to th e maintenance.

 Please change the batteries when the low-voltage

indicator lightens.

 Please clean the surface of the device before using.

Use cloth with alcohol to wipe the device first, and
then let it dry in air or wipe it dry.

 Please take out the batteries if the oximeter will not

be used for a long time.

 The recommended storage environment of the

device:

ambient tem per atur e: -20ºC ~60ºC, relative humidity
10%~95%, atmospheric pressure: 50kPa~107.4kPa.

 The oximeter is calibrated in the factory before sale,

there is no need to calibrate it during its life cycle.
However, if it is necessary to verify its accuracy
routinely, the user can do the verification by means
of SpO

2

simulator, or it can be done by the local third

party test house.

High-pressure sterilization cannot be used on the

device.

Do n ot immerse the device in liquid.

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7.2 Cl eaning a nd Dis infecting Instruc tio n

 Surface-clean sensor with a soft gauze by wetting

with a solution such as 75% isopropyl alcohol, if
low-level disinfection is required, use a 1:10 bleach
solution. Then surface-clean with a damp cloth and
dry with a piece of cloth.

 Clean the wristband with soap y water. Pleas e detach

the wristband from the oximeter firstly.(Refer to
Appendix for detailed disassembly method)

Caution: Do n ot ste rilize b y irr adiati on ste am, or ethylen e

oxide.
Do not use the sensor if it is damaged.

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8 Troubleshooting

Trouble

Possi ble Reason

Solution

The SpO

2

and Pulse
Rate
display

instable

1. The finger is

not

placed far enough
inside.

1. Place the finger
corre ctly inside

and

try again.

Can not
turn on the
device

1. T

he batteries are

drained or almost
drained.

2. T

he batteries are

not ins erted
properly.

3. The device is
malfunctioning.

1. Change batte r i e s .

2. Reinstall
batteries.

3. Please contac t the

local s ervice center.

Fragmental
trend curve
of SpO

2

and PR

1. Your finger is
out of pr oper
lo ca tion in the
probe.

2. Blood flow in
the finger blocked.

3.

Extreme

movement

1. Adjust your finger

location properly.

2. Make

sure there is

no obj ect may
occlude the blood
flow.

3. Extreme
movemen t may
caus e invalid

measur ing result.

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Trouble Possi ble Reason Solution

Always
display
“No
Signal”

1. T he probe is no t

connected to the
oximeter properly.

2. The finger is

not

placed well.

3. The probe
connector or the
prob e sensor is
broken.

1. Connect the

probe to the
oximeter properly
and tr y again.;

2. Place the finger
prope rly and try
again.

3. Please contac t
the local service

center.

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9 Appendix

A Common Kn o wledge for SpO2
Measurement

1 Meaning of SpO

2

SpO2 is the saturation percentage of oxygen in the blood,
so called O

2

concent rati on in th e blood; it is defined by the

percentage of oxyhemoglobin (HbO

2

) in the total

hemoglobin of the arterial blood. SpO

2

is an important
physiological parameter to reflect the respiration function;
it is calculated by the following method:

SpO

2

= HbO2/ (HbO2 +Hb)×100%

HbO

2

are the oxyhemoglobins (oxygenized hemoglobin),

Hb are those hemoglobins which release oxygen.

2 Principle of Measurement

Based on Lamb er-Beer law, the light absorbance of a given
substance is directly proportional with its density or
concentration. When the light with certain wavelength
emits on human tissue, the measured intensity of li gh t a ft er
absorption, reflecting and attenuation in tissue can reflect
the structure character of the tissue by which the light

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passes. Due to that oxygenated hemoglobin (HbO2) and
deoxygenated hemoglobin (Hb) have different absorption
character in the spectrum range from red to infrared light
(600nm~1000nm wavelength), by using these
characteristics, SpO

2

can be determined. SpO2 measured
by this oximeter is the functional oxygen saturation -- a
per centa ge of th e hem oglobi n that can transp ort oxygen . In
contrast, hemoxi meters report fractional oxygen saturation
– a percentage of all measured hemoglobin, including
dysfunctional hemoglobin, such as carboxyhemoglobin or
metahemoglobin.

Clinical application of pulse oximeters: SpO2 is an
important physiological parameter to reflect the r espirati on
and ventilation function, so SpO

2

monitoring used in
clinical becomes more popularly, such as monitoring the
patient with serious respiratory disease, the patient under
anesthesia during operation, premature and neonate. The
status of SpO

2

can be determined in time by measurement
and find the hypoxemia patient earlier, thereby preventing
or reduc ing accidental death caused by hypoxia effectively.

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3 Factors affecting SpO2 measuring accuracy
(interference reason)

 Intravascular dyes such as indocyanine green or

met hylene blue

 Exposure to excessive illumination, such as surgical

lamps, bilirubin lamps, fluorescent lights, infrared
heating lamps, or direct sunlight.

 Vascular dyes or external used color-up product such

as nail enamel or color skin care

 Excessive patient movement
 Placement of a sensor on an extremity with a blood

press ure cuff, arte rial catheter, or intr avascular line

 Exposu r e to the chamber with High pressure oxygen
 There i s an ar te rial occ lusion pr o x imal to the sensor
 Blood vessel contraction caused by peripheral vessel

hyperkinesias or body temperature decreasing

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4 Factors causing low SpO2 Measuring value
(pa thology reason)

 Hypoxemia disease, functional lack of HbO

2

 Pigmentation or abnormal oxyhemoglobin level
 Abnormal oxyhemoglobin variation
 Methemoglobin disease
 Sulfhemoglobinemia or arteria l occlusion ex ists near

sensor

 Obvious veno us pulsatio ns
 Peripheral arter ial pul sa tio n beco mes weak
 Peripheral blood supply is not enough

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B Wristband Installation and Disassembly

Step 1: Fi x the wristband on your left wrist(Fig.A).

Step 2: Put the oximeter on the propriate site of the

wristband. Then press the oximeter to ma ke the wristb and
underlay(Fig.B) st ick to t he wri stband firmly. Ne xt, follow
the Fi g.C to fix the oxim eter well.

St e p 3: The process of wristband disassembly is similar to
the installation method, but with reverse procedure.

Note: Please detach the wristband from the

oximeter before cleaning the wristband.

Wristband

underlay

Fig. A

Fig.C

Fig . B

Wristband

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