Sun-Tech Oscar2 User manual
®
User Guide
Introduction to Ambulatory Blood Pressure Monitoring................. 4
Introduction to the Oscar 2 ABP System.......................................5
Indications for Use...................................................................... 5
Operation .................................................................................. 5
Products and Accessories............................................................. 6
Specifications ............................................................................. 7
Safety and Effectiveness Considerations.......................................8
Warnings and Contraindictions....................................................9
Oscar 2 at a Glance..................................................................10
Setting Up the Sytem.................................................................11
Hardware Requirements ............................................................ 11
Software Requirements .............................................................. 11
Powering the Oscar 2 for use..................................................... 11
Setting Up the System ...............................................................12
Installing the Software ............................................................... 12
Conducting an Ambulatory Blood Pressure Study.......................13
Programming the Oscar 2 for an ABP Study................................ 14
Fitting a Patient with the Oscar 2 and Orbit™ Cuff ...................... 15
Preparing and Educating the Patient ........................................... 16
Starting the Study...................................................................... 16
Finishing the Study .................................................................... 16
Troubleshooting ........................................................................18
Maintaining and Cleaning the Oscar 2 ......................................19
Limited Warranty.......................................................................21
Index ........................................................................................22
Table of Contents
Introduction to Ambulatory Blood Pressure Monitoring
Ambulatory blood pressure monitoring is an accepted clinical tool for collecting
multiple blood pressure measurements. It better assists clinicians with the diagnosis
and management of hypertension by providing: blood pressure variability, an
estimation of true blood pressure, overnight changes in blood pressure, and morning
surge in blood pressure.1In-clinic and home blood pressure measurements cannot
provide the same depth of information that a 24-hour study provides. Several studies
have shown that ambulatory blood pressure monitoring, when compared to clinic or
home blood pressure measurements, is superior in predicting target organ damage,
morbid events, or cardiovascular risk.1, 2, 3
The data obtained from ambulatory blood pressure monitors is highly accurate and
useful for managing a wide variety of hypertensive situations including:
• White-coathypertension
• Resistanthypertension
• Maskedhypertension
• Childhoodhypertension
• Efficacyofanti-hypertensivedrugtherapyona24-hourbasis
• Nocturnalhypertension
• Episodichypertensionand/oranxietydisorders
• Hypotensivesymptoms
• Changesindietanddailyroutinedesignedtoreducehypertension
• Hypertensioninpregnancy
1.Pickering,T.G.,Shimbo,D.,&Haas,D.(2006).AmbulatoryBlood-PressureMonitoring.New England Journal of Medicine, 354(22),
2368 – 2374.
2.Marchiando,R.J.&Elston,M.P.(2003).AutomatedAmbulatoryBloodPressureMonitoring:ClinicalUtilityintheFamilyPracticeSetting.
American Family Physician, 67(11), 2343 – 2350.
3.White,W.B.(1999).Ambulatorybloodpressureasapredictoroftargetorgandiseaseandoutcomesinthehypertensivepatient.
Blood Pressure Monitoring, 4(3), 181 – 184.
4
Introduction to the Oscar 2 ABP System
Indications for Use
The Oscar 2 is a non-invasive oscillometric blood pressure monitor capable of
measuring an adult patient’s systolic and diastolic blood pressures. It is intended for
use as an aid or adjunct to diagnosis and treatment.
Operation
The Oscar 2 unit is worn by the patient either on a waist belt or shoulder strap and
is connected to a cuff around the non-dominant upper arm. The cuff is inflated
automatically at intervals which can be programmed during setup. Blood pressure is
measured by the oscillometric method which senses pressure waves in the artery when
occludedbypressureinthecuff.Measurementofthefrequencyofthepressurewaves
enables heart rate to also be measured.
Blood pressure measurements determined with this device are equivalent to those
obtainedbyatrainedobserverusingthecuff/stethoscopeauscultationmethod,within
the limits prescribed by the American National Standard, Electronic or Automated
Sphygmomanometers.1The Korotkoff sounds heard over the artery below the
compression cuff vary in character as the pressure in the cuff is reduced from above
systolic toward zero or atmospheric pressure. They are divided into phases. Phase
1 (K1) or systolic begins with the sudden appearance of a faint, clear tapping or
thumping sound that gradually increases in intensity. Phase 5 (K5) or diastolic begins
when silence develops, and was used to determine overall efficacy of the Oscar 2.
The Oscar 2 passes all requirements for validation by the International Protocol of the
European Society of Hypertension (ESH)2and British Hypertension Society (BHS)3.
To obtain results of these studies please send a written request to :
SunTech Medical®
507 Airport Boulevard, Suite 117
Morrisville, NC 27560-8200 USA
1.AssociationfortheAdvancementofMedicalInstrumentation.TheNationalStandardofElectronicorAutomatedSphygmomanometer.
Arlington,VA:AAMI;1996
2.Jones,S.C.,Bilous,M.,Winship,S.,Finn,P.,&Goodwin,J.(2004).ValidationoftheOscar 2 oscillometric 24-hour ambulatory blood
pressure monitor according to the International Protocol for the validation of blood pressure measuring devices. Blood Press Monitoring,
9(4),219-223
3.Goodwin,J.,Bilous,M.,Winship,S.,Finn,P.,&Jones,S.(2007).ValidationoftheOscar2oscillometric24-hambulatorybloodpressure
monitoraccordingtotheBritishHypertensionSocietyprotocol.BloodPressureMonitoring,12(2),113–117.
5
Products and Accessories
Your Oscar 2 package should contain the following items. If you are missing any item
pleasecontactSunTechimmediately(refertoLimitedWarranty,page21,forcontact
information).
Oscar 2 Package Item Number Qty. Standard
Oscar 2ABPMonitor 97-0012-00 1
AccuWinPro™v3 Software (CD) 27-0037-A1 1
Oscar 2 USB Cable 97-0090-02 1
Oscar 2 Serial Cable 91-0056-00 1
Adult Orbit Cuff (25-35 cm) 98-0063-12 1
Adult Plus Orbit Cuff (33-40 cm) 98-0063-13 1
Oscar 2 Pouch 98-0032-00 1
Oscar 2 Strap 98-0036-00 1
Oscar 2 Belt 98-0037-00 1
Oscar 2 User’s Guide 80-0027-00 1
Oscar 2 Quick Start Guide 82-0026-00 1
AccuWin Pro v3 User’s Guide 80-0026-00 0
Patient Diaries 82-0019-00 10
AA, Alkaline Batteries (qty. 4) 17-0004-00 1
Additional Accessories (included in the
Power Pack System
Item Number Qty. Standard
Small Adult Orbit Cuff (18-27 cm) 98-0063-11 0
Large Adult OrbitCuff(39-46cm) 98-0063-14 0
AA,NiMHRechargeableBatteries(qty.4) 17-0005-00 0
Battery Charger 17-0007-00 0
6
Specifications
Method of
Measurement:
Oscillometry with step deflation
Blood Pressure Range: 25-260mmHg(maxinflate280mmHg)
Heart Rate Range: 40-200 bpm
Accuracy: Clinically validated to ESH International Protocol, BHS
(A/A),ANSI/AAMI(SP10)
International
Standards:
EN60601-1,EN60601-2-30,
EN60601-1-2(EMC),
EN1060-1,EN1060-3,“Non-Invasive
Sphygmomanometers -General Requirements
& Supplementary Requirements For Electro-
MechanicalBPMeasuringSystems”,AAMI
SP10 ES1 category C’ (battery powered)
Operating Conditions: 10°C (50°F) to 50°C (122°F)
20-95%RHnon-condensing
Power: Two“AA”alkalinebatteriesorhighcapacity
rechargeablebatteries(NiMH)
Data Memory: Flash memory stores up to 250 readings
Calibration: Minimally,onceeverytwoyears
Safety Systems: Maximuminflationpressurelimitedto300mmHg;
Autosafetyreleasevalveforpowerfailure;Maximum
BP measurement time limited to less than 140 seconds
Sampling Periods: 3 independently programmable periods (5, 10, 15,
20,30,45,60,90and120minutes)
Size: Approximately120x70x32mm
Weight: Approx284g,includingbatteries
Storage Conditions: -20°cto70°c,15%-95%RHnon-condensing
Data Connection: USB (RS-232 option)
7
Safety and Effectiveness Considerations
The following safety and effectiveness issues are to be considered
prior to the usage of the Oscar 2 unit.
•Thisdeviceisdefibrillatorprotected.
NOTE:NoprecautionsspecifictotheOscar 2 are required during
defibrillation, and defibrillation discharge has no effect on the Oscar 2.
•Themonitorisintendedforusefollowingconsultationandinstructionbya
physician.
•Thereliabilityofthedeviceisdependentuponconformancewiththeoperation
and service instructions, as detailed in this manual.
•Thisdevicehasbeendesignedforuseonpatientswithnormalsinusrhythms.
•Theinterpretationofbloodpressuremeasurementsshouldonlybemadebya
physician. The accuracy of any blood pressure recording may be affected by
the position of the subject, his or her physical condition, and use outside the
operating instructions detailed in this manual.
•Safetyandeffectivenessonpregnantwomenandneonates
have not been tested.
Disposal
This symbol indicates that the monitor contains materials (such
as electrical components) which are hazardous. Please return to
SunTechMedicalforproperdisposal.
Adverse Reactions
Allergicexanthema(symptomaticeruption)intheareaofthecuffmayresult,
including the formation of urticaria (allergic reaction including raised edematous
patches of skin or mucous membranes and intense itching) caused by the fabric
material of the cuff.
Petechia (a minute reddish or purplish spot containing blood that appears in the
skin) formation or Rumple-Leede phenomenon (multiple petechia) on the forearm
following the application of the cuff, which may lead to Idiopathic thrombocytopenia
(spontaneous persistent decrease in the number of platelets associated with
hemorrhagic conditions) or phlebitis (inflammation of a vein) may be observed.
8
Warnings and Contraindictions
Precautions for Use
Ensure pressure compatibility to all patients. If any abnormality
occurs in the monitor, suspend the operation immediately and
disconnect it from the patient. If the monitor has been used or
stored outside its acceptable range (see Specifications page),
it may not meet performance specifications. If the cuff fails to
deflate, the patient should be instructed on its proper and safe removal.
DO NOTuseinthepresenceofflammableanesthetics;thiscouldcausean
explosion.
DO NOT immerse the monitor in any fluid, place fluids on top, or attempt to
clean the unit with any liquid detergents or cleaning agents. This may cause an
electrical hazard. If accidental wetting occurs, please return to SunTech®(see
LimitedWarranty,page21).Refertopage19,MaintainingandCleaningthe
Oscar 2 ABP System, for care instructions.
DO NOT remove unit covers. The monitor does not contain any user serviceable
components.
DO NOT use the monitor if it has failed its diagnostic self test, or if it displays a
greater than zero pressure with no cuff attached. The values displayed by such a
unit may be inaccurate.
DO NOT use on neonates or children, and patients known to be readily
susceptible to bruising.
DO NOT attach the cuff to a limb being used for IV infusions as the cuff inflation
can block the infusion, causing harm to the patient.
CAUTION: Substitution of a component different from that supplied may result
in measurement error. Repairs should be undertaken only by personnel trained or
authorizedbySunTechMedical.
CAUTION: If cuff fails to deflate within two and a half minutes, instruct the
patient on manual removal of cuff.
CAUTION: Check that operation of the unit does not result in prolonged
impairment of the circulation of the patient.
WARNING: Ensure batteries are inserted with the correct polarity. Improper
installation is a hazard.
9
Oscar 2 at a Glance
Menu Layout
Start/Stop
button
•TOPOWERON:Whenthemonitorisoff,pressthe
Start/Stopbutton.
•TOPOWEROFF:Whenthemonitorisonbutnot
takingareading,pressandholdtheStart/Stopbutton
until you hear five quick beeps, then release.
•TOABORTAMEASUREMENT:Whenthemonitoris
taking a reading and the cuff pressure is displayed, press
theStart/Stopbutton.
•TOSTARTTHEPROGRAMMEDABPSTUDY:Whenthe
timeisflashing,presstheStart/Stopbutton.
•TOSTARTASINGLEBPREADING:Whenthetimeis
displayed,presstheStart/Stopbutton.
Time
Indicatescurrenttime;whenflashing,themonitorwill
turnoffinthenext20secondsunlessanABPstudyis
started.
Pressure Indicates the pressure of the cuff in mmHg during a BP
reading.
BP
Reading
Immediately after a BP reading, the display shows the
results of the reading if enabled. Blood pressure in
mmHg followed by heart rate in beats per minute.
Clock Denotes that a programmed ABP study is in progress.
Sun Denotes that the monitor is collecting readings according
to the AWAKE program of the study.
Moon Denotes that the monitor is collecting readings according
to the ASLEEP program of the study.
Battery Indicateslowbatteryvoltage;BATTERIESNEEDTOBE
REPLACED.
Printer Indicates the number of readings in memory.
Systolic/Diastolic
START/STOP
Buttons reserved for
future programmability
10
Setting Up the Sytem
The Oscar 2ABPMsystemispackagedwitheverythingyouneedtostart.
OverviewoftheABPMsystem
The basic components of the Oscar 2ABPMsystemare:
• Oscar 2 ABP monitor with 4’ patient hose assembly
• Orbit blood pressure cuffs (adult and adult plus)
• Pouch
• Strap/Belt
• Batteries,AA(4)
• Oscar 2 User’s Guide
• AccuWin Pro v3 User’s Guide
• AccuWin Pro v3 CD
• Oscar 2 USB cable
See the Product and Accessories page for contents.
Hardware Requirements
• PentiumbasedorequivalentPC-compatiblecomputerwithCDdrive
• SVGAorcompatibledisplayadapterandmonitor(1024x768resolution
recommended)
• OneavailableUSBorserialport
• 32MBRAMandminimum20MBHDDrecommended
Software Requirements
MicrosoftWindows®version98orlater,excludingWindowsME
MicrosoftInternetExplorer®3orlaterwithMicrosoftHTMLHelp.
Powering the Oscar 2 for use
Install 2 AA batteries in the bay located at the back of the monitor. The label in the
bayshowstheorientationinwhichthebatteriesshouldbeplaced.Whenbatteriesare
properly loaded, the monitor’s display will show the following:
1. Incrementing dashes for two seconds
2. Software and safety version of the monitor
3. Battery voltage for two seconds
4. Three quick beeps
5. The number of BP readings in memory with flashing printer for three seconds
6. One long beep
7. Time flashing for twenty seconds
The monitor is now ready to be used.
11
Setting Up the System
Installing the software
The AccuWin Pro v3 Software components include:
• AccuWin Pro v3 User’s Guide
• AccuWin Pro v3 CD
• Oscar 2 USB cable
Place the installation CD in the CD drive located on your computer and follow the
instructions appearing on the screen if CD autoplay is enabled on your computer.
If autoplay is not enabled, follow these steps:
1. OpenWindowsExplorerorWindowsNTExplorer(PresstheWindows“Start”
buttonandfind“MyComputer”)
2. Click on the CD drive
3. DoubleclicktheAUTORUN.EXEfile
4. Follow the instructions on the screen
NOTE: The USB cable should not be connected to the computer before
AccuWin Pro is installed.
12
Conducting an Ambulatory Blood Pressure Study
Communicating with the Oscar 2
To successfully complete an ABP study, you need your computer to be able to
communicate with your ABP monitor in order to program it and retrieve data from it.
Connecting the monitor to your computer
1. Connect the PC interface USB cable to the connection site at the bottom of the
ABP monitor (Fig. 1).
2. Connect the USB end of the PC
interface cable to the USB port on the
back of your computer (Fig. 2).
3. If using the serial port PC interface
cable, connect the cable to the
9-pinserialportonthebackofyour
computer.
Configuring your computer for communication
Using the PC Interface USB cable
Installing AccuWin Pro v3 will load the driver(s) for the USB cable. Once the cable is
connected to the PC, AccuWin Pro v3 will recognize the cable and auto-select it as
the connection to the monitor (Fig. 3).
Using the PC Interface Serial Cable
1. From AccuWin Pro v3, pull down
the Monitor menu and select
Configure Port (Fig. 3).
2. Select the serial port to which the
PC cable is connected.
3. Under ABP Device, select
Oscar 2.
4. If you want to verify that the
settings that you have selected
are correct, click on Test Port.
If communication is successful,
a confirmation message will be
displayed quickly.
5. Select OK when finished.
Fig. 1 Fig. 2
Fig. 3: Configurations, Hardware Settings
13
Programming the Oscar 2 for an ABP Study
To prepare the monitor for an ABP study, simply fill out an on-screen form to set the
parameters for your patient to be programmed into the monitor.
1. Select the Program button on the
toolbar or Program study under
Monitorinthemenubar.
2. Enter the settings in the form (Fig.
4). Fields are described below.
3. Programming begins when OK is
clicked.
4. An indicator bar shows
the progress as the data is
transferred to the monitor and
disappears when programming
is successfully completed.
The test parameters can be adjusted as follows:
Patient name and ID: For reporting and referencing data.
Start study in 5
minutes:
Check denotes that the study will start automatically after
programming;uncheckeddenotesthatthefirstpushofthe
Start/Stopbuttonwithunitpoweredonwillstartthestudy.
Time zone difference: Adjust the monitor’s clock to the time zone that the patient
is in relative to your time zone.
MaxPressure: 160to280mmHg;suggestedsettingis30mmHgabove
thehighestexpectedsystolicBP.
NOTE: The ABP monitor will not inflate to Max Pressure with each
reading; it inflates to 30 mmHg above the previous systolic reading.
Keypad: Enabled will allow the patient to start readings.
Display: Enabled will allow the patient to view the results
immediately after a measurement.
NOTE: Keypad and Display are always enabled for the first 30
minutes of a study.
Intervals: Set intervals between programmed readings to Standard
for+/-5minutesaroundselectedtimesorFixedforexact
times.5and10minuteintervalsarealwaysexact.
Time Periods: Up to 3 allowed.
Time Intervals: None,5,10,15,20,30,45,60,90,and120-minute
intervals between readings.
Fig. 4: Program Monitor
14
Fitting a patient with the Oscar 2 and Orbit cuff
After you have successfully programmed the Oscar 2 using AccuWin Pro v3, you may
begin fitting the patient with the monitor and a blood pressure cuff. Cuffs may be
used on either arm.
1. Choose the proper cuff size
To determine the correct cuff size for your patient, wrap the cuff around the
patient’s upper arm without sliding the arm through the sleeve. Use the color-
coded RANGE indicator on the inside of the cuff and the bold INDEX marker
to check that the arm circumference falls within the cuff range. If the arm is
within range, this cuff size is correct for your patient. If the measurement is
outside the RANGE indicator, select a new cuff size as indicated by color.
IMPORTANT: Using an incorrect cuff size could result in erroneous and
misleading blood pressure measurements.
2. Apply the Orbit cuff
To apply the Orbit cuff,
simply slide the sleeve up
the patient’s arm, ensuring
the color size indicator is
at the top of the cuff. The
cuff should be midway
between the elbow and
shoulder. Be sure the ARTERY indicator is over the patient’s brachial artery,
betweenthebicepandtricepmuscles(seestep2).Wrapthecuffsnuglyaround
the patient’s upper arm.
3. Connect the hoses
Connect the hoses from the
cuff and monitor by twisting the
fittings together until you hear a
snap. Drape the hose over the
patient’s shoulder, around the
neck and across the opposite
side of the body.
4. Attach to patient
Insert the Oscar 2 into its pouch
with the display showing through the window. Attach the pouch to the patient
using either the shoulder strap or belt depending on the patient’s preference.
5. Begin BP reading
To verify proper monitor operation, ensure that the monitor is on and start a BP
readingbypressingtheStart/Stopbutton.Ifproblemsoccur,reviewthesetup
and fitting of the system or consult Trouble-shooting for tips.
The clock icon should appear on the display of the Oscar 2 indicating that the study is in
progress. The patient and Oscar 2ABPMsystemarenowreadyfortheABPMstudy.
Fig. 5: Illustrated Overview
Fig. 6: Application Fig. 7: Proper Setup
15
Preparing and educating the patient
Preparing your patient for the ABP study is the most important step to achieving a
successful test. Review the following instructions with your patient.
• Whenthepressureinthecuffincreases,thepatientshouldavoidexcess
movement during measurements. Let the cuffed arm hang loosely, slightly away
fromthebody.Avoidflexingthemusclesormovingthehandandfingersofthe
cuffed arm.
• ThepatientcanstopameasurementinprogressbypressingtheStart/Stop
button.
• Ifthekeypadisenabledwhenprogrammed,thepatientcanstarta
measurementatanytimebypressingtheStart/Stopbutton.
• BetweenBPreadingsthecuffshouldnotberemoved.
• Whilesleeping,thepatientshouldmakesurethatthehoseisnotkinked.
• Thebatteriescanbereplacedduringastudywithoutthedatabeinglostor
interrupting the monitor’s program. Alternatively, the monitor can be turned off
without losing its data.
• Instructthepatientonhowandwhentofilloutthepatientdiary.
• Ensurethepatientknowshowtocareforthemonitor.Keepthemonitordryand
do not drop it.
• Ifthemonitororcuffcausesextremepainorpainnotnormallyassociatedwith
blood pressure measurement, the patient should remove the cuff and turn off the
monitor.
Starting the study
Before the patient leaves with the monitor and cuff correctly instrumented,
1. Verify that the monitor operates correctly.
2. Makesurethattheclocksymbolisdisplayedonthemonitor.
Finishing the study
If you wish to finish the study before the patient returns, instruct the patient to turn off
themonitorbyholdingdowntheStart/Stopbuttonfor5seconds.TheOscar 2 will
beep 5 times and the display will turn off.
Whenthepatientreturns,takethecuff,monitor,andstrap/beltoff.
16
Before retrieving data from the monitor, ensure that the monitor is disconnected from
the patient before connecting the ABP monitor to any piece of hardware such as your
personal computer.
To retrieve the data:
1. Connect the Oscar 2 to
the computer via the PC
interface USB cable.
2. Open AccuWin Pro.
3. Click on the Retrieve
toolbar button, or pull
down the Monitor menu
and select Retrieve Data.
4. Communication starts
automatically. The dialog
boxonthescreenshows
the progress as the data is
transferred.
5. After completion, a dialog
boxasksifthisisanew
patient.IfyouclickNo,a
list of current patient files
will appear (Fig. 8). Select
the patient file to save the
retrieved data.
6. If you click Yes, the
Patient information dialog
box(Fig.9)willappear.
Enter patient information
in the data fields.
7. Click the OK button to save the data.
The patient’s BP data is now saved as a file on your computer. The ABP Data tab
displays the retrieved data. The patient’s name, ID#, test date, file name and its
location are displayed in the status line located at the bottom of the display area.
NOTE: If you do not retrieve data from the monitor, this data will be lost
whenyouprogramitforthenextstudy.
Fig. 8: Retrieving data, choosing patient
Fig. 9: Retrieving data, patient information
17
Troubleshooting
Event
Code Description in AccuWin Pro v3 Solution
1Weakornooscillometricsignal Check position of cuff, tighten cuff.
2Artifact/ErraticOscillometricSignal Remain still during BP reading.
3Exceededretrycount
(4 inflate attempts) Remain still during BP reading.
4Exceededmeasurementtime Check air hose connections and
make certain cuff is tight.
85 Reading Aborted
(blocked valves or pneumatics)
Check air hose connections and
make certain air tubing is not
crimped.
86 Reading Aborted (user abort) PushSTART/STOPbuttontorestart
reading.
87 Reading Aborted
(inflate time-out or air leak) Check air hose and cuff.
88 Reading Aborted (Safety time-out)
Retryreading,pushSTART/STOP
button. If problems persist, return
unit for servicing.
89 Reading Aborted (cuff over-pressure) Check for blocked or kinked air
hose.
90
Service Required
(power supply out-of-range or other
hardware problem)
Replace batteries. If problem
persists, return unit for servicing.
91
Service Required
(safety override fitted or autozero
out-of-range)
RetrybypushingSTART/STOP
button. If problems persist, return
unit for servicing.
97 Service Required
(transducer out-of-range) Return for servicing.
98 Service Required
(A/Dout-of-range) Return for servicing.
99
Service Required
(EEPROMcalibrationdataCRC
failure)
Unit needs to be recalibrated. Return
for servicing.
In the event you are unable to rectify the error and need assistance, please call our
servicedepartment:intheUS,1.800.421.8626,and919.654.2300,orintheUK
01865.884234.
18
Maintaining and Cleaning the Oscar 2
After use, it is important to perform preventative maintenance to ensure the safe and
efficient operation of the monitor.
Cleaning after use
The Oscar 2unitisnotsterilizable.DONOTimmersethemonitorinanyfluid,or
attempt to clean with any liquid detergents, cleaning agents, or solvents. You may
use a soft, damp cloth to remove dirt and dust from the monitor. If the unit does
becomeimmersedinwater,donotuse;contactourservicedepartment.
You may use a mild disinfectant solution to clean the cuff, strap, belt, and pouch.
Alternatively, you may also wash these items in a washing machine. Remove the
bladder from the Orbitcuffbeforemachinewashing.Washtheseitemsusingwarm
waterandamilddetergent;ifneeded,hangtodry.
Maintenance after use
Visually inspect cables, pneumatic hoses, and the monitor case for cracks, fraying, or
kinks.DONOTusethemonitorifthereareanysignsofdamage.Pleasecontact
our service department.
Maintenance
It is recommended that you check the accuracy of the Oscar 2 once every two
years. If needed, an authorized service center may need to recalibrate the pressure
transducers in the monitor.
19
Checking calibration
The Oscar 2 must first be placed into the proper mode. Follow the steps below:
1. Removeandthenreplaceoneofthetwo“AA”batteries.
2. WhiletheLCDisdisplayingthedashes,pressandholddowntheSTART/STOP
key.
3. The unit will display the software version.
4. The unit will display the battery voltage.
5. You will then hear a click as the valves are closed.
6. Youwillnowsee“0mmHg”displayed.
The calibration of the unit can now be checked against a calibrated mercury column.
1. Placeat-tube(part#98-0030-00)betweenthehosefromthemonitorandthe
cuff.
2. Wrapthecuffaroundasuitablysizedcanorbottle.Thisactsasthereservoir
for the unit.
3. Attachthethirdendofthe“T”tubeintoacalibratedmercurycolumn,which
gives you access to the bulb and a reference.
4. Using the bulb of the calibrated mercury column, inflate the cuff to 250 mmHg.
Once the pressure has stabilized at this level, the LCD should match the mercury
column by ±2.0 mmHg.
5. Check the unit against the column every 50 mmHg from 250 to 50 mmHg and
the unit should be within ±2.0 mmHg. If not, the unit needs to be returned to
the service department for recalibration or repair.
NOTE: To return the Oscar 2 to it’s normal mode, remove and replace one
of the batteries.
The Oscar 2 does not contain any user serviceable internal parts and should only
be opened by an authorized service representative. To return for service, please
send to your nearest SunTech office listed on the Limited Warranty page
21, care of Support and Service.
20
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